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• Why can't I change the AU_AU locale to en_US?

  - by sachin

  /bin/bash: warning: setlocale: LC_ALL: cannot change locale ( (unset)) Generating locales... en_US.ISO-8859-1... /usr/sbin/locale-gen: line 177: warning: setlocale: LC_ALL: cannot change locale ( (unset)) done Generation complete. ganesha@ubuntu:~$ sudo update_locale LANG=en_US sudo: update_locale: command not found ganesha@ubuntu:~$ sudo update-locale LANG=en_US perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = "en_US:en", LC_ALL = " (unset)", LC_PAPER = "AU_AU.UTF-8", LC_ADDRESS = "AU_AU.UTF-8", LC_MONETARY = "AU_AU.UTF-8", LC_MEASUREMAUT = "AU_AU.UTF-8", LC_NUMERIC = "AU_AU.UTF-8", LC_TELEPHONE = "AU_AU.UTF-8", LC_MESSAGES = "AU_AU.UTF-8", LC_COLLATE = "AU_AU.UTF-8", LC_IDAUTIFICATION = "AU_AU.UTF-8", LC_CTYPE = "AU_AU.UTF-8", LC_TIME = "AU_AU.UTF-8", LC_NAME = "AU_AU.UTF-8", LANG = "en_US.UTF-8" are supported and installed on your system. perl: warning: Falling back to the standard locale ("C"). ganesha@ubuntu:~$ sudo update-locale LANG=en_US.UTF8 perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = "en_US:en", LC_ALL = " (unset)", LC_PAPER = "AU_AU.UTF-8", LC_ADDRESS = "AU_AU.UTF-8", LC_MONETARY = "AU_AU.UTF-8", LC_MEASUREMAUT = "AU_AU.UTF-8", LC_NUMERIC = "AU_AU.UTF-8", LC_TELEPHONE = "AU_AU.UTF-8", LC_MESSAGES = "AU_AU.UTF-8", LC_COLLATE = "AU_AU.UTF-8", LC_IDAUTIFICATION = "AU_AU.UTF-8", LC_CTYPE = "AU_AU.UTF-8", LC_TIME = "AU_AU.UTF-8", LC_NAME = "AU_AU.UTF-8", LANG = "en_US.UTF-8" are supported and installed on your system. perl: warning: Falling back to the standard locale ("C"). ganesha@ubuntu:~$ gedit ~/.profile (process:6467): Gtk-WARNING **: Locale not supported by C library. Using the fallback 'C' locale. ganesha@ubuntu:~$ sudo update-locale LANG=en_US.UTF8 perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = "en_US:en", LC_ALL = " (unset)", LC_PAPER = "AU_AU.UTF-8", LC_ADDRESS = "AU_AU.UTF-8", LC_MONETARY = "AU_AU.UTF-8", LC_MEASUREMAUT = "AU_AU.UTF-8", LC_NUMERIC = "AU_AU.UTF-8", LC_TELEPHONE = "AU_AU.UTF-8", LC_MESSAGES = "AU_AU.UTF-8", LC_COLLATE = "AU_AU.UTF-8", LC_IDAUTIFICATION = "AU_AU.UTF-8", LC_CTYPE = "AU_AU.UTF-8", LC_TIME = "AU_AU.UTF-8", LC_NAME = "AU_AU.UTF-8", LANG = "en_US.UTF-8" are supported and installed on your system. perl: warning: Falling back to the standard locale ("C"). ganesha@ubuntu:~$ sudo apt-get install --reinstall locales Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 0 not upgraded. Need to get 0 B/3359 kB of archives. After this operation, 0 B of additional disk space will be used. perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = "en_US:en", LC_ALL = " (unset)", LC_TIME = "AU_AU.UTF-8", LC_MONETARY = "AU_AU.UTF-8", LC_CTYPE = "AU_AU.UTF-8", LC_COLLATE = "AU_AU.UTF-8", LC_ADDRESS = "AU_AU.UTF-8", LC_TELEPHONE = "AU_AU.UTF-8", LC_MESSAGES = "AU_AU.UTF-8", LC_NAME = "AU_AU.UTF-8", LC_MEASUREMAUT = "AU_AU.UTF-8", LC_IDAUTIFICATION = "AU_AU.UTF-8", LC_NUMERIC = "AU_AU.UTF-8", LC_PAPER = "AU_AU.UTF-8", LANG = "en_US.UTF-8" are supported and installed on your system. perl: warning: Falling back to the standard locale ("C"). (Reading database ... 157848 files and directories currently installed.) Preparing to replace locales 2.13+git20120306-3 (using .../locales_2.13+git20120306-3_all.deb) ... Unpacking replacement locales ... Processing triggers for man-db ... Setting up locales (2.13+git20120306-3) ... /bin/bash: warning: setlocale: LC_ALL: cannot change locale ( (unset)) Generating locales... en_AG.UTF-8... /usr/sbin/locale-gen: line 177: warning: setlocale: LC_ALL: cannot change locale ( (unset)) done en_AU.UTF-8... /usr/sbin/locale-gen: line 177: warning: setlocale: LC_ALL: cannot change locale ( (unset)) done en_BW.UTF-8... /usr/sbin/locale-gen: line 177: warning: setlocale: LC_ALL: cannot change locale ( (unset)) done en_CA.UTF-8... /usr/sbin/locale-gen: line 177: warning: setlocale: LC_ALL: cannot change locale ( (unset)) done en_DK.UTF-8... /usr/sbin/locale-gen: line 177: warning: setlocale: LC_ALL: cannot change locale ( (unset)) done en_GB.UTF-8... /usr/sbin/locale-gen: line 177: warning: setlocale: LC_ALL: cannot change locale ( (unset)) done en_HK.UTF-8... /usr/sbin/locale-gen: line 177: warning: setlocale: LC_ALL: cannot change locale ( (unset)) done en_IE.UTF-8... /usr/sbin/locale-gen: line 177: warning: setlocale: LC_ALL: cannot change locale ( (unset)) done en_IN.UTF-8... /usr/sbin/locale-gen: line 177: warning: setlocale: LC_ALL: cannot change locale ( (unset)) done en_NG.UTF-8... /usr/sbin/locale-gen: line 177: warning: setlocale: LC_ALL: cannot change locale ( (unset)) done en_NZ.UTF-8... /usr/sbin/locale-gen: line 177: warning: setlocale: LC_ALL: cannot change locale ( (unset)) done en_PH.UTF-8... /usr/sbin/locale-gen: line 177: warning: setlocale: LC_ALL: cannot change locale ( (unset)) done en_SG.UTF-8... /usr/sbin/locale-gen: line 177: warning: setlocale: LC_ALL: cannot change locale ( (unset)) done en_US.ISO-8859-1... /usr/sbin/locale-gen: line 177: warning: setlocale: LC_ALL: cannot change locale ( (unset)) done en_US.UTF-8... /usr/sbin/locale-gen: line 177: warning: setlocale: LC_ALL: cannot change locale ( (unset)) done en_ZA.UTF-8... /usr/sbin/locale-gen: line 177: warning: setlocale: LC_ALL: cannot change locale ( (unset)) done en_ZM.UTF-8... /usr/sbin/locale-gen: line 177: warning: setlocale: LC_ALL: cannot change locale ( (unset)) done en_ZW.UTF-8... /usr/sbin/locale-gen: line 177: warning: setlocale: LC_ALL: cannot change locale ( (unset)) done Generation complete. ganesha@ubuntu:~$ How to correct this?

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• BizTalk host throttling &ndash; Singleton pattern and High database size

  - by S.E.R.

  Originally posted on: http://geekswithblogs.net/SERivas/archive/2013/06/30/biztalk-host-throttling-ndash-singleton-pattern-and-high-database-size.aspxI have worked for some days around the singleton pattern (for those unfamiliar with it, read this post by Victor Fehlberg) and have come across a few very interesting posts, among which one dealt with performance issues (here, also by Victor Fehlberg). Simply put: if you have an orchestration which implements the singleton pattern, then performances will continuously decrease as the orchestration receives and consumes messages, and that behavior is more obvious when the orchestration never ends (ie : it keeps looping and never terminates or completes). As I experienced the same kind of problem (actually I was alerted by SCOM, which told me that the host was being throttled because of High database size), I thought it would be a good idea to dig a little bit a see what happens deep inside BizTalk and thus understand the reasons for this behavior. NOTE: in this article, I will focus on this High database size throttling condition. I will try and work on the other conditions in some not too distant future… Test conditions The singleton orchestration For the purpose of this study, I have created the following orchestration, which is a very basic implementation of a singleton that piles up incoming messages, then does something else when a certain timeout has been reached without receiving another message: Throttling settings I have two distinct hosts : one that hosts the receive port (basic FILE port) : Ports_ReceiveHostone that hosts the orchestration : ProcessingHost In order to emphasize the throttling mechanism, I have modified the throttling settings for each of these hosts are as follows (all other parameters are set to the default value): [Throttling thresholds] Message count in database: 500 (default value : 50000) Evolution of performance counters when submitting messages Since we are investigating the High database size throttling condition, here are the performance counter that we should take a look at (all of them are in the BizTalk:Message Agent performance object): Database sizeHigh database sizeMessage delivery throttling stateMessage publishing throttling stateMessage delivery delay (ms)Message publishing delay (ms)Message delivery throttling state durationMessage publishing throttling state duration (If you are not used to Perfmon, I strongly recommend that you start using it right now: it is a wonderful tool that allows you to open the hood and see what is going on inside BizTalk – and other systems) Database size It is quite obvious that we will start by watching the database size and high database size counters, just to see when the first reaches the configured threshold (500) and when the second rings the alarm. NOTE : During this test I submitted 600 messages, one message at a time every 10ms to see the evolution of the counters we have previously selected. It might not show very well on this screenshot, but here is what happened: From 15:46:50 to 15:47:50, the database size for the Ports_ReceiveHost host (blue line) kept growing until it reached a maximum of 504.At 15:47:50, the high database size alert fires At first I was surprised by this result: why is it the database size of the receiving host that keeps growing since it is the processing host that piles up messages? Actually, it makes total sense. This counter measures the size of the database queue that is being filled by the host, not consumed. Therefore, the high database size alert is raised on the host that fills the queue: Ports_ReceiveHost. More information is available on the Public MPWiki page. Now, looking at the Message publishing throttling state for the receiving host (green line), we can see that a throttling condition has been reached at 15:47:50: We can also see that the Message publishing delay(ms) (blue line) has begun growing slowly from this point. All of this explains why performances keep decreasing when a singleton keeps processing new messages: the database size grows and when it has exceeded the Message count in database threshold, the host is throttled and the publishing delay keeps increasing. Digging further So, what happens to the database queue then? Is it flushed some day or does it keep growing and growing indefinitely? The real question being: will the host be throttled forever because of this singleton? To answer this question, I set the Message count in database threshold to 20 (this value is very low in order not to wait for too long, otherwise I certainly would have fallen asleep in front of my screen) and I submitted 30 messages. The test was started at 18:26. At 18:56 (ie : exactly 30min later) the throttling was stopped and the database size was divided by 2. 30 min later again, the database size had dropped to almost zero: I guess I’ll have to find some documentation and do some more testing before I sort this out! My guess is that some maintenance job is at work here, though I cannot tell which one Digging even further If we take a look at the Message delivery throttling state counter for the processing host, we can see that this host was also throttled during the submission of the 600 documents: The value for the counter was 1, meaning that Message delivery incoming rate for the host instance exceeds the Message delivery outgoing rate * the specified Rate overdrive factor (percent) value. We will see this another day… :) A last word Let’s end this article with a warning: DO NOT CHANGE THE THROTTLING SETTINGS LIGHTLY! The temptation can be great to just bypass throttling by setting very high values for each parameter (or zero in some cases, which simply disables throttling). Nevertheless, always keep in mind that this mechanism is here for a very good reason: prevent your BizTalk infrastructure from exploding!! So whatever you do with those settings, do a lot of testing and benchmarking!

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• Nerdstock 2012: A photo review of Microsoft TechEd North America 2012

  - by The Un-T Guy

  Not only could I not fathom that I would ever be attending a tech event of the magnitude of TechEd, neither could any of my co-workers.  As the least technical person in the history of Information Technology ever, I felt as though I were walking into the belly of the beast, fearing I’d not be allowed out until I could write SSIS packages, program in Visual Basic, or at least arm wrestle a DBA.  Most of my fears were unrealized.   But I made it.  I was here.  I even got to wear the Mark of the Geek neck package with schedule, eyeglass cleaners, name badge (company name obfuscated so they don’t fire me), and a pen.  The name  badge was seemingly the key element, as every vendor in the place wanted to scan it to capture name, email address, and numbers to show their bosses back home.  It also let me eat the food and drink the coffee so that’s a fair trade.   A recurring theme throughout the presentations and vendor demos was “the Cloud” and BYOD (bring your own device).  The below was a common site throughout the week, as attendees from all over the world brought their own devices and were able to (seemingly) seamlessly connect to the Worldwide Innerwebs.  Apparently proof that Microsoft and the event organizers were practicing what they were preaching.   “Cavernous” is one way to describe the downstairs facility itself.  “Freaking cavernous” might be more accurate.  Work sessions were held in classrooms on the second and third floors but the real action was happening downstairs.  Microsoft bookstore, blogger hub (shoutout to Geekswithblogs.net), The Wall (sans Pink Floyd, sadly), couches, recharging stations…   …a game zone with pool and air hockey tables, pinball machines, foosball…   …vintage video games…           …and a even giant chess board.  Looked like this guy was opening with the Kaspersky parry.   The blend of technology and fantasy even went so far as to bring childhood favorites to life.  Assuming, of course, your childhood was pre-video games (like mine) and you were stuck with electric football and Rock ‘em Sock ‘em robots:   And, lest the “combatants” become unruly or – God forbid – afternoon snacks were late, Orange County’s finest was on the scene to keep the peace.  On a high-tech mode of transport, of course.   She wasn’t the only one to think this was a swell way to transition from one concourse to the next.  Given the level of support provided by the entire Orange County Convention Center staff, I knew they had to have some secret.   Here’s one entrance to the vendor zone/”Technical Learning Center.”  Couldn’t help but think of them as the remora attached to the Whale Shark that is Microsoft…   …or perhaps planets orbiting the sun. Microsoft is just that huge and it seemed like every vendor in the industry looks forward to partnering with the tech behemoth.   Aside from the free stuff from the vendors, probably the most popular place in the house was the dining area.  Amazing spreads every day, multiple times a day.  While no attendance numbers were available at press time, literally thousands of attendees were fed, and fed well, every day.  And lest you think my post from earlier in the week exaggerated about the backpacks…   …or that I’m exaggerating about the lunch crowds.  This represents only about between 25-30% of the lunch crowd – it was all my camera could capture at once.  No one went away hungry.   The only thing missing was a a vat of Red Bull but apparently organizers went old school, with probably 100 urns of the original energy drink – coffee – all around the venue.   Of course, following lunch and afternoon sessions, some preferred the even older school method of re-energizing.  There were rumors that Microsoft was serving graham crackers and milk in this area.  But they were only rumors.   Cannot overstate the wonderful service provided by the Orange County Convention Center staff.  Coffee, soft drinks, juice, and water were available always.  Buffet meals were delicious with a wide range of healthy options available, in addition to hundreds (at least) special meal requests supported every day.  Ever tried to keep up with an estimated 9,000 hungry and thirsty IT-ers?  These folks did.  Kudos to all of the staff and many thanks!   And while I occasionally poke fun at the Whale Shark, if nothing else this experience convinced me of one thing:  Microsoft knows how to put on a professional event.  Hundreds of informative, professionally delivered sessions, covering a wide range of topics set at varying levels of expertise (some that even I was able to follow), social activities, vendor partnerships…they brought everything you could ask for to inform, educate, and inspire an entire IT industry.   So as I depart the belly of the beast, I can both take pride in the fact that I survived the week and marvel at the brilliance surrounding me.  The IT industry – or at least the segment associated with Microsoft – is in good, professional hands.  And what won’t fit in their hands can be toted in the Microsoft provided backpacks.  Win-win.   Until New Orleans…

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• Pre-filtering and shaping OData feeds using WCF Data Services and the Entity Framework - Part 2

  - by rajbk

  In the previous post, you saw how to create an OData feed and pre-filter the data. In this post, we will see how to shape the data. A sample project is attached at the bottom of this post. Pre-filtering and shaping OData feeds using WCF Data Services and the Entity Framework - Part 1 Shaping the feed The Product feed we created earlier returns too much information about our products. Let’s change this so that only the following properties are returned – ProductID, ProductName, QuantityPerUnit, UnitPrice, UnitsInStock. We also want to return only Products that are not discontinued.  Splitting the Entity To shape our data according to the requirements above, we are going to split our Product Entity into two and expose one through the feed. The exposed entity will contain only the properties listed above. We will use the other Entity in our Query Interceptor to pre-filter the data so that discontinued products are not returned. Go to the design surface for the Entity Model and make a copy of the Product entity. A “Product1” Entity gets created.   Rename Product1 to ProductDetail. Right click on the Product entity and select “Add Association” Make a one to one association between Product and ProductDetails.   Keep only the properties we wish to expose on the Product entity and delete all other properties on it (see diagram below). You delete a property on an Entity by right clicking on the property and selecting “delete”. Keep the ProductID on the ProductDetail. Delete any other property on the ProductDetail entity that is already present in the Product entity. Your design surface should look like below:    Mapping Entity to Database Tables Right click on “ProductDetail” and go to “Table Mapping”   Add a mapping to the “Products” table in the Mapping Details.   After mapping ProductDetail, you should see the following.   Add a referential constraint. Lets add a referential constraint which is similar to a referential integrity constraint in SQL. Double click on the Association between the Entities and add the constraint with “Principal” set to “Product”. Let us review what we did so far. We made a copy of the Product entity and called it ProductDetail We created a one to one association between these entities Excluding the ProductID, we made sure properties were not duplicated between these entities  We added a ProductDetail entity to Products table mapping (Entity to Database). We added a referential constraint between the entities. Lets build our project. We get the following error: ”'NortwindODataFeed.Product' does not contain a definition for 'Discontinued' and no extension method 'Discontinued' accepting a first argument of type 'NortwindODataFeed.Product' could be found …" The reason for this error is because our Product Entity no longer has a “Discontinued” property. We “moved” it to the ProductDetail entity since we want our Product Entity to contain only properties that will be exposed by our feed. Since we have a one to one association between the entities, we can easily rewrite our Query Interceptor like so: [QueryInterceptor("Products")] public Expression<Func<Product, bool>> OnReadProducts() { return o => o.ProductDetail.Discontinued == false; } Similarly, all “hidden” properties of the Product table are available to us internally (through the ProductDetail Entity) for any additional logic we wish to implement. Compile the project and view the feed. We see that the feed returns only the properties that were part of the requirement.   To see the data in JSON format, you have to create a request with the following request header Accept: application/json, text/javascript, */* (easy to do in jQuery) The result should look like this: { "d" : { "results": [ { "__metadata": { "uri": "http://localhost.:2576/DataService.svc/Products(1)", "type": "NorthwindModel.Product" }, "ProductID": 1, "ProductName": "Chai", "QuantityPerUnit": "10 boxes x 20 bags", "UnitPrice": "18.0000", "UnitsInStock": 39 }, { "__metadata": { "uri": "http://localhost.:2576/DataService.svc/Products(2)", "type": "NorthwindModel.Product" }, "ProductID": 2, "ProductName": "Chang", "QuantityPerUnit": "24 - 12 oz bottles", "UnitPrice": "19.0000", "UnitsInStock": 17 }, { ... ... If anyone has the $format operation working, please post a comment. It was not working for me at the time of writing this.  We have successfully pre-filtered our data to expose only products that have not been discontinued and shaped our data so that only certain properties of the Entity are exposed. Note that there are several other ways you could implement this like creating a QueryView, Stored Procedure or DefiningQuery. You have seen how easy it is to create an OData feed, shape the data and pre-filter it by hardly writing any code of your own. For more details on OData, Google it with your favorite search engine :-) Also check out the one of the most passionate persons I have ever met, Pablo Castro – the Architect of Aristoria WCF Data Services. Watch his MIX 2010 presentation titled “OData: There's a Feed for That” here. Download Sample Project for VS 2010 RTM NortwindODataFeed.zip

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• Ubuntu Sudo apt-get -f install

  - by Justin

  I was trying to install a program. And It said that my Dependencies were unmet. And that I should run, sudo apt-get -f install. I have moved everything I didn't need in /etc/apt/sources.list.d/ into the trash. My source.list is all Natty while I am running Oneiric. So maybe I need a new source.list? But here are the things I have: justin@justin-000:~$ sudo apt-get -f install [sudo] password for justin: Reading package lists... Done Building dependency tree Reading state information... Done Correcting dependencies... Done The following extra packages will be installed: linux-image-3.0.0-13-generic Suggested packages: fdutils linux-doc-3.0.0 linux-source-3.0.0 linux-tools The following NEW packages will be installed: linux-image-3.0.0-13-generic 0 upgraded, 1 newly installed, 0 to remove and 3 not upgraded. 2 not fully installed or removed. Need to get 0 B/36.5 MB of archives. After this operation, 117 MB of additional disk space will be used. Do you want to continue [Y/n]? y (Reading database ... 270736 files and directories currently installed.) Unpacking linux-image-3.0.0-13-generic (from .../linux-image-3.0.0-13- generic_3.0.0-13.22_i386.deb) ... Done. dpkg: error processing /var/cache/apt/archives/linux-image-3.0.0-13 generic_3.0.0-13.22_i386.deb (--unpack): corrupted filesystem tarfile - corrupted package archive No apport report written because MaxReports is reached already dpkg-deb: error: subprocess paste was killed by signal (Broken pipe) Examining /etc/kernel/postrm.d . run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.0.0-13-generic /boot/vmlinuz-3.0.0-13-generic run-parts: executing /etc/kernel/postrm.d/zz-extlinux 3.0.0-13-generic /boot/vmlinuz-3.0.0-13-generic P: Checking for EXTLINUX directory... found. P: Writing config for /boot/vmlinuz-3.0.0-12-generic... P: Writing config for /boot/vmlinuz-2.6.38-11-generic... P: Installing debian theme... done. run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.0.0-13-generic /boot/vmlinuz-3.0.0-13-generic Errors were encountered while processing: /var/cache/apt/archives/linux-image-3.0.0-13-generic_3.0.0-13.22_i386.deb E: Sub-process /usr/bin/dpkg returned an error code (1) justin@justin-000:~$ sudo apt-get update justin@justin-000:~$ sudo apt-get update Ign dl.google.com stable InRelease Ign dl.google.com stable InRelease Get:1dl.google.com stable Release.gpg [198 B] Ign us.archive.ubuntu.com oneiric InRelease Ign us.archive.ubuntu.com oneiric-security InRelease Ign http://us.archive.ubuntu.com oneiric-updates InRelease Get:2 dl.google.com stable Release.gpg [198 B] Get:3 dl.google.com stable Release [1,347 B] Get:4 dl.google.com stable Release [1,338 B] Hit us.archive.ubuntu.com oneiric Release.gpg Hit us.archive.ubuntu.com oneiric-security Release.gpg Get:5/dl.google.com stable/main i386 Packages [1,220 B] Hit tp://us.archive.ubuntu.com oneiric-updates Release.gpg Ign tp://dl.google.com stable/main TranslationIndex Get:6 tp://dl.google.com stable/main i386 Packages [464 B] Ign ttp://ppa.launchpad.net oneiric InRelease Hit ttp://us.archive.ubuntu.com oneiric Release Ign ttp://ppa.launchpad.net oneiric InRelease Ign ttp://dl.google.com stable/main TranslationIndex Hit ttp://ppa.launchpad.net oneiric Release.gpg Hit ttp://us.archive.ubuntu.com oneiric-security Release Hit ttp://ppa.launchpad.net oneiric Release.gpg Hit ttp://us.archive.ubuntu.com oneiric-updates Release Hit ttp://us.archive.ubuntu.com oneiric/main Sources Hit ttp://us.archive.ubuntu.com oneiric/restricted Sources Hit ttp://us.archive.ubuntu.com oneiric/universe Sources Hit ttp://us.archive.ubuntu.com oneiric/multiverse Sources Hit ttp://us.archive.ubuntu.com oneiric/main i386 Packages Hit ttp://ppa.launchpad.net oneiric Release Hit ttp://us.archive.ubuntu.com oneiric/restricted i386 Packages Hit ttp://us.archive.ubuntu.com oneiric/universe i386 Packages Hit ttp://us.archive.ubuntu.com oneiric/multiverse i386 Packages Hit ttp://us.archive.ubuntu.com oneiric/main TranslationIndex Hit ttp://us.archive.ubuntu.com oneiric/multiverse TranslationIndex Hit ://us.archive.ubuntu.com oneiric/restricted TranslationIndex Hit htp://us.archive.ubuntu.com oneiric/universe TranslationIndex Hit htp://us.archive.ubuntu.com oneiric-security/main Sources Hit ttp://us.archive.ubuntu.com oneiric-security/restricted Sources Hit ttp://ppa.launchpad.net oneiric Release Hit ttp://us.archive.ubuntu.com oneiric-security/universe Sources Hit tp://us.archive.ubuntu.com oneiric-security/multiverse Sources Hit htp://us.archive.ubuntu.com oneiric-security/main i386 Packages Hit tp://us.archive.ubuntu.com oneiric-security/restricted i386 Packages Hit ttp://us.archive.ubuntu.com oneiric-security/universe i386 Packages Hit ttp://us.archive.ubuntu.com oneiric-security/multiverse i386 Packages Hit htp://ppa.launchpad.net oneiric/main Sources Hit ttp://ppa.launchpad.net oneiric/main i386 Packages Ign htp://ppa.launchpad.net oneiric/main TranslationIndex Hit ttp://us.archive.ubuntu.com oneiric-security/main TranslationIndex Hit ttp://us.archive.ubuntu.com oneiric-security/multiverse TranslationIndex Hit htp://us.archive.ubuntu.com oneiric-security/restricted TranslationIndex Hit htp://us.archive.ubuntu.com oneiric-security/universe TranslationIndex Ign htp://dl.google.com stable/main Translation-en_US Hit htp://us.archive.ubuntu.com oneiric-updates/main Sources Hit htp://us.archive.ubuntu.com oneiric-updates/restricted Sources Hit tp://us.archive.ubuntu.com oneiric-updates/universe Sources Hit htp://us.archive.ubuntu.com oneiric-updates/multiverse Sources Hit htp://us.archive.ubuntu.com oneiric-updates/main i386 Packages Ign htp://dl.google.com stable/main Translation-en Hit ttp://ppa.launchpad.net oneiric/main Sources Hit htp://ppa.launchpad.net oneiric/main i386 Packages Hit ttp://us.archive.ubuntu.com oneiric-updates/restricted i386 Packages Ign htp://dl.google.com stable/main Translation-en_US Ign htp://ppa.launchpad.net oneiric/main TranslationIndex Hit hp://us.archive.ubuntu.com oneiric-updates/universe i386 Packages Hit ttp://us.archive.ubuntu.com oneiric-updates/multiverse i386 Packages Hit htp://us.archive.ubuntu.com oneiric-updates/main TranslationIndex Hit htp://us.archive.ubuntu.com oneiric-updates/multiverse TranslationIndex Hit htp://us.archive.ubuntu.com oneiric-updates/restricted TranslationIndex Ign htp://dl.google.com stable/main Translation-en Hit htp://us.archive.ubuntu.com oneiric-updates/universe TranslationIndex Hit ttp://us.archive.ubuntu.com oneiric/main Translation-en Hit ttp://us.archive.ubuntu.com oneiric/multiverse Translation-en Hit htp://us.archive.ubuntu.com oneiric/restricted Translation-en Hit htp://us.archive.ubuntu.com oneiric/universe Translation-en Hit htp://us.archive.ubuntu.com oneiric-security/main Translation-en Hit hp://us.archive.ubuntu.com oneiric-security/multiverse Translation-en Hit htp://us.archive.ubuntu.com oneiric-security/restricted Translation-en Hit htp://us.archive.ubuntu.com oneiric-security/universe Translation-en Hit htp://us.archive.ubuntu.com oneiric-updates/main Translation-en Hit htp://us.archive.ubuntu.com oneiric-updates/multiverse Translation-en Hit htp://us.archive.ubuntu.com oneiric-updates/restricted Translation-en Hit htp://us.archive.ubuntu.com oneiric-updates/universe Translation-en Ign htp://ppa.launchpad.net oneiric/main Translation-en_US Ign htt://ppa.launchpad.net oneiric/main Translation-en Ign htp://ppa.launchpad.net oneiric/main Translation-en_US Ign htp://ppa.launchpad.net oneiric/main Translation-en Fetched 4,765 B in 2s (2,158 B/s) Reading package lists... Done justin@justin-000:~$

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• Rob Blackwell on interoperability and Azure

  - by Eric Nelson

  At QCon in March we had a sample Azure application implemented in both Java and Ruby to demonstrate that the Windows Azure Platform is not just about .NET. The following is an interesting interview with Rob Blackwell, the R&D director of the partner who implemented the application. UK Interoperability Team Interviews Rob Blackwell, R&D Director at Active Web Solutions. Is Microsoft taking interoperability seriously? Yes. In the past, I think Microsoft has, quite rightly come in for criticism, but architects and developers should look at this again. The Interoperability Bridges site (http://www.interoperabilitybridges.com/ ) shows a wide range of projects that allow interoperability from Java, Ruby and PHP for example. The Windows Azure platform has been architected with interoperable APIs in mind. It's straightforward to access the various storage facilities from just about any language or platform. Azure compute is capable of running more than just C# applications! Why is interoperability important to you? My company provides consultancy and bespoke development services. We're a Microsoft Gold Partner, but we live in the real world where companies have a mix of technologies provided by a variety of vendors. When developing an enterprise software solution, you rarely have a completely blank canvas. We often see integration scenarios where we need to exchange data with legacy systems. It's not unusual to see modern Silverlight applications being built on top of Java or Mainframe based back ends. Could you give us some examples of where interoperability has been important for your projects? We developed an innovative Sea Safety system for the RNLI Lifeboats here in the UK. Commercial Fishing is one of the most dangerous professions and we helped developed the MOB Guardian System which uses satellite technology and man overboard devices to raise the alarm when a fisherman gets into trouble. The solution is implemented in .NET running on Windows, but without interoperable standards, it would have been impossible to communicate with the satellite gateway technology. For more information, please see the case study: http://www.microsoft.com/casestudies/Case_Study_Detail.aspx?CaseStudyID=4000005892 More recently, we were asked to build a web site to accompany the QCon 2010 conference in London to help demonstrate and promote interoperability. We built the site using Java and Restlet and hosted it in Windows Azure Compute. The site accepts feedback from visitors and all the data is stored in Windows Azure Storage. We also ported the application to Ruby on Rails for demonstration purposes. Visitors to the stand were surprised that this was even possible. Why should Java developers be interested in Windows Azure? Windows Azure Storage consists of Blobs, Queues and Tables. The storage is scalable, durable, secure and cost-effective. Using the WindowsAzure4j library, it's easy to use, and takes just a few lines of code. If you are writing an application with large data storage requirements, or you want an offsite backup, it makes a lot of sense. Running Java applications in Azure Compute is straightforward with tools like the Tomcat Solution Accelerator (http://code.msdn.microsoft.com/winazuretomcat )and AzureRunMe (http://azurerunme.codeplex.com/ ). The Windows Azure AppFabric Service Bus can also be used to connect heterogeneous systems running on different networks and in different data centres. How can The Service Bus be considered an interoperability solution? I think that the Windows Azure AppFabric Service Bus is one of Microsoft’s best kept secrets. Think of it as “a globally scalable application plumbing kit in the sky”. If you have used Enterprise Service Buses before, you’ll be familiar with the concept. Applications can connect to the service bus to securely exchange data – these can be point to point or multicast links. With the AppFabric Service Bus, the applications can exist anywhere that has access to the Internet and the connections can traverse firewalls. This makes it easy to extend or scale your application or reach out to other networks and technologies. For example, let’s say you have a SQL Server database running on premises and you want to expose the data to a Java application running in the cloud. You could set up a point to point Service Bus connection and use JDBC. Traditionally this would have been difficult or impossible without punching holes in firewalls and compromising security. Rob Blackwell is R&D Director at Active Web Solutions, www.aws.net , a Microsoft Gold Partner specialising in leading edge software solutions. He is an occasional writer and conference speaker and blogs at www.robblackwell.org.uk Related Links: UK Azure Online Community – join today. UK Windows Azure Site Start working with Windows Azure

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• Lessons from a SAN Failure

  - by Bill Graziano

  At 1:10AM Sunday morning the main SAN at one of my clients suffered a “partial” failure.  Partial means that the SAN was still online and functioning but the LUNs attached to our two main SQL Servers “failed”.  Failed means that SQL Server wouldn’t start and the MDF and LDF files mostly showed a zero file size.  But they were online and responding and most other LUNs were available.  I’m not sure how SANs know to fail at 1AM on a Saturday night but they seem to.  From a personal standpoint this worked out poorly: I was out with friends and after more than a few drinks.  From a work standpoint this was about the best time to fail you could imagine.  Everything was running well before Monday morning.  But it was a long, long Sunday.  I started tipsy, got tired and ended up hung over later in the day. Note to self: Try not to go out drinking right before the SAN fails. This caught us at an interesting time.  We’re in the process of migrating to an entirely new set of servers so some things were partially moved.  This made it difficult to follow our procedures as cleanly as we’d like.  The benefit was that we had much better documentation of everything on the server.  I would encourage everyone to really think through the process of implementing your DR plan and document as much as possible.  Following a checklist is much easier than trying to remember at night under pressure in a hurry after a few drinks. I had a series of estimates on how long things would take.  They were accurate for any single server failure.  They weren’t accurate for a SAN failure that took two servers down.  This wasn’t bad but we should have communicated better. Don’t forget how many things are outside the database.  Logins, linked servers, DTS packages (yikes!), jobs, service broker, DTC (especially DTC), database triggers and any objects in the master database are all things you need backed up.  We’d done a decent job on this and didn’t find significant problems here.  That said this still took a lot of time.  There were many annoyances as a result of this.  Small settings like a login’s default database had a big impact on whether an application could run.  This is probably the single biggest area of concern when looking to recreate a server.  I’d encourage everyone to go through every single node of SSMS and look for user created objects or settings outside the database. Script out your logins with the proper SID and already encrypted passwords and keep it updated.  This makes life so much easier.  I used an approach based on KB246133 that worked well.  I’ll get my scripts posted over the next few days. The disaster can cause your DR process to fail in unexpected ways.  We have a job that scripts out all logins and role memberships and writes it to a file.  This runs on the DR server and pulls from the production server.  Upon opening the file I found that the contents were a “server not found” error.  Fortunately we had other copies and didn’t need to try and restore the master database.  This now runs on the production server and pushes the script to the DR site.  Soon we’ll get it pushed to our version control software. One of the biggest challenges is keeping your DR resources up to date.  Any server change (new linked server, new SQL Server Agent job, etc.) means that your DR plan (and scripts) is out of date.  It helps to automate the generation of these resources if possible. Take time now to test your database restore process.  We test ours quarterly.  If you have a large database I’d also encourage you to invest in a compressed backup solution.  Restoring backups was the single larger consumer of time during our recovery. And yes, there’s a database mirroring solution planned in our new architecture. I didn’t have much involvement in things outside SQL Server but this caused many, many things to change in our environment.  Many applications today aren’t just executables or web sites.  They are a combination of those plus network infrastructure, reports, network ports, IP addresses, DTS and SSIS packages, batch systems and many other things.  These all needed a little bit of attention to make sure they were functioning properly. Profiler turned out to be a handy tool.  I started a trace for failed logins and kept that running.  That let me fix a number of problems before people were able to report them.  I also ran traces to capture exceptions.  This helped identify problems with linked servers. Overall the thing that gave me the most problem was linked servers.  In order for a linked server to function properly you need to be pointed to the right server, have the proper login information, have the network routes available and have MSDTC configured properly.  We have a lot of linked servers and this created many failure points.  Some of the older linked servers used IP addresses and not DNS names.  This meant we had to go in and touch all those linked servers when the servers moved.

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• ODI and OBIEE 11g Integration

  - by David Allan

  Here we will see some of the connectivity options to OBIEE 11g using the JDBC driver. You’ll see based upon some connection properties how the physical or presentation layers can be utilized. In the integrators guide for OBIEE 11g you will find a brief statement indicating that there actually is a JDBC driver for OBIEE. In OBIEE 11g its now possible to connect directly to the physical layer, Venkat has an informative post here on this topic. In ODI 11g the Oracle BI technology is shipped with the product along with KMs for reverse engineering, and using OBIEE models for a data source. When you install OBIEE in 11g a light weight demonstration application is preinstalled in the server, when you open this in the BI Administration tool we see the regular 3 panel view within the administration tool. To interrogate this system via JDBC (just like ODI does using the KMs) need a couple of things; the JDBC driver from OBIEE 11g, a java client program and the credentials. In my java client program I want to connect to the OBIEE system, when I connect I can interrogate what the JDBC driver presents for the metadata. The metadata projected via the JDBC connection’s DatabaseMetadata changes depending on whether the property NQ_SESSION.SELECTPHYSICAL is set when the java client connects. Let’s use the sample app to illustrate. I have a java client program here that will print out the tables in the DatabaseMetadata, it will also output the catalog and schema. For example if I execute without any special JDBC properties as follows; java -classpath .;%BIHOMEDIR%\clients\bijdbc.jar meta_jdbc oracle.bi.jdbc.AnaJdbcDriver jdbc:oraclebi://localhost:9703/ weblogic mypass Then I get the following returned representing the presentation layer, the sample I used is XML, and has no schema; Catalog Schema Table Sample Sales Lite null Base Facts Sample Sales Lite null Calculated Facts …     Sample Targets Lite null Base Facts …     Now if I execute with the only difference being the JDBC property NQ_SESSION.SELECTPHYSICAL with the value Yes, then I see a different set of values representing the physical layer in OBIEE; java -classpath .;%BIHOMEDIR%\clients\bijdbc.jar meta_jdbc oracle.bi.jdbc.AnaJdbcDriver jdbc:oraclebi://localhost:9703/ weblogic mypass NQ_SESSION.SELECTPHYSICAL=Yes The following is returned; Catalog Schema Table Sample App Lite Data null D01 Time Day Grain Sample App Lite Data null F10 Revenue Facts (Order grain) …     System DB (Update me)     …     If this was a database system such as Oracle, the catalog value would be the OBIEE database name and the schema would be the Oracle database schema. Other systems which have real catalog structure such as SQLServer would use its catalog value. Its this ‘Catalog’ and ‘Schema’ value that is important when integration OBIEE with ODI. For the demonstration application in OBIEE 11g, the following illustration shows how the information from OBIEE is related via the JDBC driver through to ODI. In the XML example above, within ODI’s physical schema definition on the right, we leave the schema blank since the XML data source has no schema. When I did this at first, I left the default value that ODI places in the Schema field since which was ‘<Undefined>’ (like image below) but this string is actually used in the RKM so ended up not finding any tables in this schema! Entering an empty string resolved this. Below we see a regular Oracle database example that has the database, schema, physical table structure, and how this is defined in ODI.   Remember back to the physical versus presentation layer usage when we passed the special property, well to do this in ODI, the data server has a panel for properties where you can define key/value pairs. So if you want to select physical objects from the OBIEE server, then you must set this property. An additional changed in ODI 11g is the OBIEE connection pool support, this has been implemented via a ‘Connection Pool’ flex field for the Oracle BI data server. So here you set the connection pool name from the OBIEE system that you specifically want to use and this is used by the Oracle BI to Oracle (DBLINK) LKM, so if you are using this you must set this flex field. Hopefully a useful insight into some of the mechanics of how this hangs together.

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• ICC Cricket World Cup 2011- Free Online Live Streaming, Mobile Apps, TV and Radio Guide

  - by Kavitha

  The ICC Cricket World Cup 2011 will be hosted jointly by Bangladesh, India and Sri Lanka. This 10th edition of World Cup is held between 19 February-2 April 2011. The World Cup drive will be starting in Dhaka on 19 February with the inaugural match between India and Bangladesh. The 43 days long ICC World Cup Cricket 2011 event will host 49 matches, day matches starting as early as 9.30am IST and day-night matches starting at 2.30pm IST. Here is our guide to follow 2011 ICC Cricket World Cup live on your computers, televisions,mobiles and radios Free Live Streaming On The Web (Official & Unofficial) http://espnstar.com will live stream all the matches of World Cup 2011 and they will be available in HD quality as they are the official broadcasters of World Cup 2011 cricket event. This is the first time ever a world cup cricket event is streamed online officially. If you are not able to access the official live streaming of Cricket World Cup due to regional restrictions, point your browser to any of the following unofficial live streams on the web. NOTE: MAKE SURE THAT YOUR ANTIVIRUS and ANTIMALWARE software are up and running before opening any of these sites. crictime.com - this site offers 6 live streaming servers that offer World Cup 2011 Cricket matches streams. Don’t mind the ads that are displayed left,right and center and just enjoy the cricket. Web pages dedicated for the world cup streaming are already live and you can bookmark them for your reference. cricfire.com/live-cricket: cricfire   gathers cricket live streams available around the web and provides them for easy access. Also they provide links for watching highlights and other post match analysis shows. Other sites that provide live streaming videos extracover.net webcric.com Searching for Unofficial Streams On Live Video Streaming Sites One of the best ways to find the unofficial streams is look for live streaming feeds on popular video streaming websites. We can be assured that these sites does not spread malware and spammy ads as they are well established. Here are the queries that you can use to search the popular sites FreedoCast  http://freedocast.com/search.aspx?go=cricket%20world%20cup Justin.tv      http://www.justin.tv/search?q=cricket+world+cup Ustream.tv  http://www.ustream.tv/discovery/live/all?q=cricket%20world%20cup TV Channels That Telecast Cricket World Cup Live Even though web is the place where we spend most of our time for entertainment, TVs are still popular for watching sports events. Mostly 90% of us are going to follow this cricket world cup matches on television sets. Here is the list of TV channels that paid whooping amounts of money for broadcasting rights and going to telecast live cricket Afghanistan – Ariana Television Network: Lemar TV Australia – Nine Network, Fox Sports Bangladesh – Bangladesh Television Canada – Asian Television Network China – ESPN Star Sports Europe (Except UK & Ireland) – Eurosport2 Fiji – Fiji TV India – ESPN Star Sports, Star Cricket, DD National (mostly India matches alone) Ireland – Zee Cafe Jamaica – Television Jamaica Middle East – Arab Radio and Television Network Nepal – ESPN Star Sports New Zealand – Sky Sport Pacific Islands – Sky Pacific Pakistan – GEO Super, Pakistan Television Corporation Pan-Africa – South African Broadcasting Corporation Singapore – Star Cricket South Africa – Supersport, Sabc3 Sport Sri Lanka – Sri Lanka Rupavahini Corporation United Kingdom – Sky Sports HD USA – Willow Cricket, DirecTV, Dish Network West Indies – Caribbean Media Corporation Radio Stations That Provide Live Commentary Don’t we listen to radio? Yes we still listen to radios, especially when we are on the go. Radios are part of our mobiles as well as music players like iPods. Here are the stations that you can tune into for catching live cricket commentary Australia – ABC Local Radio Bangladesh – Bangladesh Betar Canada , Central America – EchoStar India – All India Radio Pakistan, United Arab Emirates – Hum FM Sri Lanka – FM Derana United Kingdom, Ireland – BBC Radio West Indies – Caribbean Media Corporation Watch World Cup Cricket On Your Mobile This section is for Indian users. 3G rollout is happening at very high pace in all part of the India and most of the metros and towns are able to access 3G services. With 3G on your mobile you will be able to watch live ICC world cricket on your Reliance Mobiles and you can read more about it here. Top 10 Cricket Websites Check out our earlier post on top 10 cricket web sites for information. This article titled,ICC Cricket World Cup 2011- Free Online Live Streaming, Mobile Apps, TV and Radio Guide, was originally published at Tech Dreams. Grab our rss feed or fan us on Facebook to get updates from us.

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• Azure &ndash; Part 6 &ndash; Blob Storage Service

  - by Shaun

  When migrate your application onto the Azure one of the biggest concern would be the external files. In the original way we understood and ensure which machine and folder our application (website or web service) is located in. So that we can use the MapPath or some other methods to read and write the external files for example the images, text files or the xml files, etc. But things have been changed when we deploy them on Azure. Azure is not a server, or a single machine, it’s a set of virtual server machine running under the Azure OS. And even worse, your application might be moved between thses machines. So it’s impossible to read or write the external files on Azure. In order to resolve this issue the Windows Azure provides another storage serviec – Blob, for us. Different to the table service, the blob serivce is to be used to store text and binary data rather than the structured data. It provides two types of blobs: Block Blobs and Page Blobs. Block Blobs are optimized for streaming. They are comprised of blocks, each of which is identified by a block ID and each block can be a maximum of 4 MB in size. Page Blobs are are optimized for random read/write operations and provide the ability to write to a range of bytes in a blob. They are a collection of pages. The maximum size for a page blob is 1 TB.   In the managed library the Azure SDK allows us to communicate with the blobs through these classes CloudBlobClient, CloudBlobContainer, CloudBlockBlob and the CloudPageBlob. Similar with the table service managed library, the CloudBlobClient allows us to reach the blob service by passing our storage account information and also responsible for creating the blob container is not exist. Then from the CloudBlobContainer we can save or load the block blobs and page blobs into the CloudBlockBlob and the CloudPageBlob classes.   Let’s improve our exmaple in the previous posts – add a service method allows the user to upload the logo image. In the server side I created a method name UploadLogo with 2 parameters: email and image. Then I created the storage account from the config file. I also add the validation to ensure that the email passed in is valid. 1: var storageAccount = CloudStorageAccount.FromConfigurationSetting("DataConnectionString"); 2: var accountContext = new DynamicDataContext<Account>(storageAccount); 3:  4: // validation 5: var accountNumber = accountContext.Load() 6: .Where(a => a.Email == email) 7: .ToList() 8: .Count; 9: if (accountNumber <= 0) 10: { 11: throw new ApplicationException(string.Format("Cannot find the account with the email {0}.", email)); 12: } Then there are three steps for saving the image into the blob service. First alike the table service I created the container with a unique name and create it if it’s not exist. 1: // create the blob container for account logos if not exist 2: CloudBlobClient blobStorage = storageAccount.CreateCloudBlobClient(); 3: CloudBlobContainer container = blobStorage.GetContainerReference("account-logo"); 4: container.CreateIfNotExist(); Then, since in this example I will just send the blob access URL back to the client so I need to open the read permission on that container. 1: // configure blob container for public access 2: BlobContainerPermissions permissions = container.GetPermissions(); 3: permissions.PublicAccess = BlobContainerPublicAccessType.Container; 4: container.SetPermissions(permissions); And at the end I combine the blob resource name from the input file name and Guid, and then save it to the block blob by using the UploadByteArray method. Finally I returned the URL of this blob back to the client side. 1: // save the blob into the blob service 2: string uniqueBlobName = string.Format("{0}_{1}.jpg", email, Guid.NewGuid().ToString()); 3: CloudBlockBlob blob = container.GetBlockBlobReference(uniqueBlobName); 4: blob.UploadByteArray(image); 5:  6: return blob.Uri.ToString(); Let’s update a bit on the client side application and see the result. Here I just use my simple console application to let the user input the email and the file name of the image. If it’s OK it will show the URL of the blob on the server side so that we can see it through the web browser. Then we can see the logo I’ve just uploaded through the URL here. You may notice that the blob URL was based on the container name and the blob unique name. In the document of the Azure SDK there’s a page for the rule of naming them, but I think the simple rule would be – they must be valid as an URL address. So that you cannot name the container with dot or slash as it will break the ADO.Data Service routing rule. For exmaple if you named the blob container as Account.Logo then it will throw an exception says 400 Bad Request.   Summary In this short entity I covered the simple usage of the blob service to save the images onto Azure. Since the Azure platform does not support the file system we have to migrate our code for reading/writing files to the blob service before deploy it to Azure. In order to reducing this effort Microsoft provided a new approch named Drive, which allows us read and write the NTFS files just likes what we did before. It’s built up on the blob serivce but more properly for files accessing. I will discuss more about it in the next post.   Hope this helps, Shaun All documents and related graphics, codes are provided "AS IS" without warranty of any kind. Copyright © Shaun Ziyan Xu. This work is licensed under the Creative Commons License.

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• Developer Training – Employee Morals and Ethics – Part 2

  - by pinaldave

  Developer Training - Importance and Significance - Part 1 Developer Training – Employee Morals and Ethics – Part 2 Developer Training – Difficult Questions and Alternative Perspective - Part 3 Developer Training – Various Options for Developer Training – Part 4 Developer Training – A Conclusive Summary- Part 5 If you have been reading this series of posts about Developer Training, you can probably determine where my mind lies in the matter – firmly “pro.”  There are many reasons to think that training is an excellent idea for the company.  In the end, it may seem like the company gets all the benefits and the employee has just wasted a few hours in a dark, stuffy room.  However, don’t let yourself be fooled, this is not the case! Training, Company and YOU! Do not forget, that as an employee, you are your company’s best asset.  Training is meant to benefit the company, of course, but in the end, YOU, the employee, is the one who walks away with a lot of useful knowledge in your head.  This post will discuss what to do with that knowledge, how to acquire it, and who should pay for it. Eternal Question – Who Pays for Training? When the subject of training comes up, money is often the sticky issue.  Some companies will argue that because the employee is the one who benefits the most, he or she should pay for it.  Of course, whenever money is discuss, emotions tend to follow along, and being told you have to pay money for mandatory training often results in very unhappy employees – the opposite result of what the training was supposed to accomplish.  Therefore, many companies will pay for the training.  However, if your company is reluctant to pay for necessary training, or is hesitant to pay for a specific course that is extremely expensive, there is always the art of compromise.  The employee and the company can split the cost of the training – after all, both the company and the employee will be benefiting. [Click on following image to answer important question] Click to Enlarge  This kind of “hybrid” pay scheme can be split any way that is mutually beneficial.  There is the obvious 50/50 split, but for extremely expensive classes or conferences, this still might be prohibitively expensive for the employee.  If you are facing this situation, here are some example solutions you could suggest to your employer:  travel reimbursement, paid leave, payment for only the tuition.  There are even more complex solutions – the company could pay back the employee after the training and project has been completed. Training is not Vacation Once the classes have been settled on, and the question of payment has been answered, it is time to attend your class or travel to your conference!  The first rule is one that your mothers probably instilled in you as well – have a good attitude.  While you might be looking forward to your time off work, going to an interesting class, hopefully with some friends and coworkers, but do not mistake this time as a vacation.  It can be tempting to only have fun, but don’t forget to learn as well.  I call this “attending sincerely.”  Pay attention, have an open mind and good attitude, and don’t forget to take notes!  You might be surprised how many people will want to see what you learned when you go back. Report Back the Learning When you get back to work, those notes will come in handy.  Your supervisor and coworkers might want you to give a short presentation about what you learned.  Attending these classes can make you almost a celebrity.  Don’t be too nervous about these presentations, and don’t feel like they are meant to be a test of your dedication.  Many people will be genuinely curious – and maybe a little jealous that you go to go learn something new.  Be generous with your notes and be willing to pass your learning on to others through mini-training sessions of your own. [Click on following image to answer important question] Click to Enlarge Practice New Learning On top of helping to train others, don’t forget to put your new knowledge to use!  Your notes will come in handy for this, and you can even include your plans for the future in your presentation when you return.  This is a good way to demonstrate to your bosses that the money they paid (hopefully they paid!) is going to be put to good use. Feedback to Manager When you return, be sure to set aside a few minutes to talk about your training with your manager.  Be perfectly honest – your manager wants to know the good and the bad.  If you had a truly miserable time, do not lie and say it was the best experience – you and others may be forced to attend the same training over and over again!  Of course, you do not want to sound like a complainer, so make sure that your summary includes the good news as well.  Your manager may be able to help you understand more of what they wanted you to learn, too. Win-Win Situation In the end, remember that training is supposed to be a benefit to the employer as well as the employee.  Make sure that you share your information and that you give feedback about how you felt the sessions went as well as how you think this training can be implemented at the company immediately. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: Developer Training, PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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• ca-certificates-java fails when trying to install openjdk-6-jre

  - by Jonas

  I use a VPS with Ubuntu Server 10.10 x64. I want to use Java and run the command sudo apt-get install openjdk-6-jre but it fails because the installation encounted errors while processing ca-certificates-java. I have tried to install the failed package with: sudo apt-get install ca-certificates-java How can I solve this? I have run sudo apt-get update and sudo apt-get upgrade but I get the same errors after that. I have also installed Ubuntu Server x64 on a VirtualBox, but the two Ubuntu Server 10.10 has different kernel versions (2.6.35 on VirtualBox and 2.6.18 on my VPS). And on VirtualBox I can install Jetty without any problems. The VPS is a fresh install of Ubuntu Server 10.10 x64, the first command I was running was sudo apt-get install openjdk-6-jre. When I run sudo apt-get install ca-certificates-java I get this message: Reading package lists... Done Building dependency tree Reading state information... Done ca-certificates-java is already the newest version. 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 1 not fully installed or removed. After this operation, 0B of additional disk space will be used. Do you want to continue [Y/n]? Here I press Y then I get this message: Setting up ca-certificates-java (20100412) ... creating /etc/ssl/certs/java/cacerts... error adding brasil.gov.br/brasil.gov.br.crt error adding cacert.org/cacert.org.crt error adding debconf.org/ca.crt error adding gouv.fr/cert_igca_dsa.crt error adding gouv.fr/cert_igca_rsa.crt error adding mozilla/ABAecom_=sub.__Am._Bankers_Assn.=_Root_CA.crt error adding mozilla/AOL_Time_Warner_Root_Certification_Authority_1.crt error adding mozilla/AOL_Time_Warner_Root_Certification_Authority_2.crt error adding mozilla/AddTrust_External_Root.crt error adding mozilla/AddTrust_Low-Value_Services_Root.crt error adding mozilla/AddTrust_Public_Services_Root.crt error adding mozilla/AddTrust_Qualified_Certificates_Root.crt error adding mozilla/America_Online_Root_Certification_Authority_1.crt error adding mozilla/America_Online_Root_Certification_Authority_2.crt error adding mozilla/Baltimore_CyberTrust_Root.crt error adding mozilla/COMODO_Certification_Authority.crt error adding mozilla/COMODO_ECC_Certification_Authority.crt error adding mozilla/Camerfirma_Chambers_of_Commerce_Root.crt error adding mozilla/Camerfirma_Global_Chambersign_Root.crt error adding mozilla/Certplus_Class_2_Primary_CA.crt error adding mozilla/Certum_Root_CA.crt error adding mozilla/Comodo_AAA_Services_root.crt error adding mozilla/Comodo_Secure_Services_root.crt error adding mozilla/Comodo_Trusted_Services_root.crt error adding mozilla/DST_ACES_CA_X6.crt error adding mozilla/DST_Root_CA_X3.crt error adding mozilla/DigiCert_Assured_ID_Root_CA.crt error adding mozilla/DigiCert_Global_Root_CA.crt error adding mozilla/DigiCert_High_Assurance_EV_Root_CA.crt error adding mozilla/DigiNotar_Root_CA.crt error adding mozilla/Digital_Signature_Trust_Co._Global_CA_1.crt error adding mozilla/Digital_Signature_Trust_Co._Global_CA_2.crt error adding mozilla/Digital_Signature_Trust_Co._Global_CA_3.crt error adding mozilla/Digital_Signature_Trust_Co._Global_CA_4.crt error adding mozilla/Entrust.net_Global_Secure_Personal_CA.crt error adding mozilla/Entrust.net_Global_Secure_Server_CA.crt error adding mozilla/Entrust.net_Premium_2048_Secure_Server_CA.crt error adding mozilla/Entrust.net_Secure_Personal_CA.crt error adding mozilla/Entrust.net_Secure_Server_CA.crt error adding mozilla/Entrust_Root_Certification_Authority.crt error adding mozilla/Equifax_Secure_CA.crt error adding mozilla/Equifax_Secure_Global_eBusiness_CA.crt error adding mozilla/Equifax_Secure_eBusiness_CA_1.crt error adding mozilla/Equifax_Secure_eBusiness_CA_2.crt error adding mozilla/Firmaprofesional_Root_CA.crt error adding mozilla/GTE_CyberTrust_Global_Root.crt error adding mozilla/GTE_CyberTrust_Root_CA.crt error adding mozilla/GeoTrust_Global_CA.crt error adding mozilla/GeoTrust_Global_CA_2.crt error adding mozilla/GeoTrust_Primary_Certification_Authority.crt error adding mozilla/GeoTrust_Universal_CA.crt error adding mozilla/GeoTrust_Universal_CA_2.crt error adding mozilla/GlobalSign_Root_CA.crt error adding mozilla/GlobalSign_Root_CA_-_R2.crt error adding mozilla/Go_Daddy_Class_2_CA.crt error adding mozilla/IPS_CLASE1_root.crt error adding mozilla/IPS_CLASE3_root.crt error adding mozilla/IPS_CLASEA1_root.crt error adding mozilla/IPS_CLASEA3_root.crt error adding mozilla/IPS_Chained_CAs_root.crt error adding mozilla/IPS_Servidores_root.crt error adding mozilla/IPS_Timestamping_root.crt error adding mozilla/NetLock_Business_=Class_B=_Root.crt error adding mozilla/NetLock_Express_=Class_C=_Root.crt error adding mozilla/NetLock_Notary_=Class_A=_Root.crt error adding mozilla/NetLock_Qualified_=Class_QA=_Root.crt error adding mozilla/Network_Solutions_Certificate_Authority.crt error adding mozilla/QuoVadis_Root_CA.crt error adding mozilla/QuoVadis_Root_CA_2.crt error adding mozilla/QuoVadis_Root_CA_3.crt error adding mozilla/RSA_Root_Certificate_1.crt error adding mozilla/RSA_Security_1024_v3.crt error adding mozilla/RSA_Security_2048_v3.crt error adding mozilla/SecureTrust_CA.crt error adding mozilla/Secure_Global_CA.crt error adding mozilla/Security_Communication_Root_CA.crt error adding mozilla/Sonera_Class_1_Root_CA.crt error adding mozilla/Sonera_Class_2_Root_CA.crt error adding mozilla/Staat_der_Nederlanden_Root_CA.crt error adding mozilla/Starfield_Class_2_CA.crt error adding mozilla/StartCom_Certification_Authority.crt error adding mozilla/StartCom_Ltd..crt error adding mozilla/SwissSign_Gold_CA_-_G2.crt error adding mozilla/SwissSign_Platinum_CA_-_G2.crt error adding mozilla/SwissSign_Silver_CA_-_G2.crt error adding mozilla/Swisscom_Root_CA_1.crt error adding mozilla/TC_TrustCenter__Germany__Class_2_CA.crt error adding mozilla/TC_TrustCenter__Germany__Class_3_CA.crt error adding mozilla/TDC_Internet_Root_CA.crt error adding mozilla/TDC_OCES_Root_CA.crt error adding mozilla/TURKTRUST_Certificate_Services_Provider_Root_1.crt error adding mozilla/TURKTRUST_Certificate_Services_Provider_Root_2.crt error adding mozilla/Taiwan_GRCA.crt error adding mozilla/Thawte_Personal_Basic_CA.crt error adding mozilla/Thawte_Personal_Freemail_CA.crt error adding mozilla/Thawte_Personal_Premium_CA.crt error adding mozilla/Thawte_Premium_Server_CA.crt error adding mozilla/Thawte_Server_CA.crt error adding mozilla/Thawte_Time_Stamping_CA.crt error adding mozilla/UTN-USER_First-Network_Applications.crt error adding mozilla/UTN_DATACorp_SGC_Root_CA.crt error adding mozilla/UTN_USERFirst_Email_Root_CA.crt error adding mozilla/UTN_USERFirst_Hardware_Root_CA.crt error adding mozilla/ValiCert_Class_1_VA.crt error adding mozilla/ValiCert_Class_2_VA.crt error adding mozilla/VeriSign_Class_3_Public_Primary_Certification_Authority_-_G5.crt error adding mozilla/Verisign_Class_1_Public_Primary_Certification_Authority.crt error adding mozilla/Verisign_Class_1_Public_Primary_Certification_Authority_-_G2.crt error adding mozilla/Verisign_Class_1_Public_Primary_Certification_Authority_-_G3.crt error adding mozilla/Verisign_Class_2_Public_Primary_Certification_Authority.crt error adding mozilla/Verisign_Class_2_Public_Primary_Certification_Authority_-_G2.crt error adding mozilla/Verisign_Class_2_Public_Primary_Certification_Authority_-_G3.crt error adding mozilla/Verisign_Class_3_Public_Primary_Certification_Authority.crt error adding mozilla/Verisign_Class_3_Public_Primary_Certification_Authority_-_G2.crt error adding mozilla/Verisign_Class_3_Public_Primary_Certification_Authority_-_G3.crt error adding mozilla/Verisign_Class_4_Public_Primary_Certification_Authority_-_G2.crt error adding mozilla/Verisign_Class_4_Public_Primary_Certification_Authority_-_G3.crt error adding mozilla/Verisign_RSA_Secure_Server_CA.crt error adding mozilla/Verisign_Time_Stamping_Authority_CA.crt error adding mozilla/Visa_International_Global_Root_2.crt error adding mozilla/Visa_eCommerce_Root.crt error adding mozilla/WellsSecure_Public_Root_Certificate_Authority.crt error adding mozilla/Wells_Fargo_Root_CA.crt error adding mozilla/XRamp_Global_CA_Root.crt error adding mozilla/beTRUSTed_Root_CA-Baltimore_Implementation.crt error adding mozilla/beTRUSTed_Root_CA.crt error adding mozilla/beTRUSTed_Root_CA_-_Entrust_Implementation.crt error adding mozilla/beTRUSTed_Root_CA_-_RSA_Implementation.crt error adding mozilla/thawte_Primary_Root_CA.crt error adding signet.pl/signet_ca1_pem.crt error adding signet.pl/signet_ca2_pem.crt error adding signet.pl/signet_ca3_pem.crt error adding signet.pl/signet_ocspklasa2_pem.crt error adding signet.pl/signet_ocspklasa3_pem.crt error adding signet.pl/signet_pca2_pem.crt error adding signet.pl/signet_pca3_pem.crt error adding signet.pl/signet_rootca_pem.crt error adding signet.pl/signet_tsa1_pem.crt error adding spi-inc.org/spi-ca-2003.crt error adding spi-inc.org/spi-cacert-2008.crt error adding telesec.de/deutsche-telekom-root-ca-2.crt failed (VM used: java-6-openjdk). dpkg: error processing ca-certificates-java (--configure): subprocess installed post-installation script returned error exit status 1 Errors were encountered while processing: ca-certificates-java E: Sub-process /usr/bin/dpkg returned an error code (1) Update I also get a problem when running java -version: Error occurred during initialization of VM Could not reserve enough space for object heap Could not create the Java virtual machine. My VPS had 128MB of Memory, I changed to 256MB but got the same problem. Then I changed to 512MB and got the same problem. I found a related post on a forum: Sub-process /usr/bin/dpkg returned an error code (1) And I tried: sudo apt-get clean sudo apt-get --reinstall install openjdk-6-jre sudo dpkg --configure -a But I got the same problem, even when I'm using 512MB of Memory. Any suggestions?

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• Review of Samsung Focus Windows Phone 7

  - by mbcrump

  I recently acquired a Samsung Focus Windows Phone 7 device from AT&T and wanted to share what I thought of it as an end-user. Before I get started, here are several of my write-ups for the Windows Phone 7. You may want to check out the second article titled: Hands-on WP7 Review of Prototype Hardware. From start to finish with the final version of Visual Studio Tools for Windows Phone 7 Hands-on : Windows Phone 7 Review on Prototype Hardware. Deploying your Windows Phone 7 Application to the actual hardware. Profile your Windows Phone 7 Application for Free Submitting a Windows Phone 7 Application to the Market. Samsung Focus i917 Phone Size: Perfect! I have been carrying around a Dell Streak (Android) and it is about half the size. It is really nice to have a phone that fits in your pocket without a lot of extra bulk. I bought a case for the Focus and it is still a perfect size.  The phone just feels right. Screen: It has a beautiful Super AMOLED 480x800 screen. I only wish it supported a higher resolution. The colors are beautiful especially in an Xbox Live Game.   3G: I use AT&T and I've had spotty reception. This really can't be blamed on the phone as much as the actual carrier. Battery: I've had excellent battery life compared to my iPhone and Android devices. I usually use my phone throughout the day on and off and still have a charge at the end of the day.  Camera/Video: I'm still looking for the option to send the video to YouTube or the Image to Twitter. The images look good, but the phone needs a forward facing camera. I like the iPhone/Android (Dell Streak) camera better. Built-in Speaker: Sounds great. It’s not a wimpy speaker that you cannot hear.  CPU: Very smooth transitioning from one screen to another. The prototype Windows Phone 7 that I had, was no where near as smooth. (It was also running a slower processor though). OS: I actually like the OS but a few things could be better. CONS: Copy and Paste (Supposed to come in the next update) We need more apps (Pandora missing was a big one for me and Slacker’s advertisement sucks!). As time passes, and more developers get on board then this will be fixed. The browser needs some major work. I have tried to make cross-platform (WP7, Android, iPhone and iPad) web apps and the browser that ships with WP7 just can’t handle it.  Apps need to be organized better. Instead of throw them all on one screen, it would help to allow the user to create categories. PROS: Hands down the best gaming experience on a phone. I have all three major phones (iphone, android and wp7). Nothing compares to the gaming experience on the WP7. The phone just works. I’ve had a LOT of glitches with my Android device. I’ve had maybe 2 with my WP7 device. Exchange and Office support are great. Nice integration with Twitter/Facebook and social media. Easy to navigate and find the information you need on one screen. Let’s look at a few pictures and we will wrap up with my final thoughts on the phone. WP7 Home Screen. Back of the phone is as stylish. It is hard to see due to the shadow but it is a very thin phone. What’s included? Manuals Ear buds Data Cable plus Power Adapter Phone Click a picture to enlarge So, what are my final thoughts on the Phone/OS? I love the Samsung Focus and would recommend it to anyone looking for a WP7 device. Like any first generation product, you need to give it a little while to mature. Right now the phone is missing several features that we are all used to using. That doesn’t mean a year from now it will be in the same situation. (I sure hope we won’t). If you are looking to get into mobile development, I believe WP7 is the easiest platform to develop from. This is especially true if you have a background in Silverlight or WPF.    Subscribe to my feed

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• Performance considerations for common SQL queries

  - by Jim Giercyk

  Originally posted on: http://geekswithblogs.net/NibblesAndBits/archive/2013/10/16/performance-considerations-for-common-sql-queries.aspxSQL offers many different methods to produce the same results.  There is a never-ending debate between SQL developers as to the “best way” or the “most efficient way” to render a result set.  Sometimes these disputes even come to blows….well, I am a lover, not a fighter, so I decided to collect some data that will prove which way is the best and most efficient.  For the queries below, I downloaded the test database from SQLSkills:  http://www.sqlskills.com/sql-server-resources/sql-server-demos/.  There isn’t a lot of data, but enough to prove my point: dbo.member has 10,000 records, and dbo.payment has 15,554.  Our result set contains 6,706 records. The following queries produce an identical result set; the result set contains aggregate payment information for each member who has made more than 1 payment from the dbo.payment table and the first and last name of the member from the dbo.member table.   /*************/ /* Sub Query  */ /*************/ SELECT  a.[Member Number] ,         m.lastname ,         m.firstname ,         a.[Number Of Payments] ,         a.[Average Payment] ,         a.[Total Paid] FROM    ( SELECT    member_no 'Member Number' ,                     AVG(payment_amt) 'Average Payment' ,                     SUM(payment_amt) 'Total Paid' ,                     COUNT(Payment_No) 'Number Of Payments'           FROM      dbo.payment           GROUP BY  member_no           HAVING    COUNT(Payment_No) > 1         ) a         JOIN dbo.member m ON a.[Member Number] = m.member_no         /***************/ /* Cross Apply  */ /***************/ SELECT  ca.[Member Number] ,         m.lastname ,         m.firstname ,         ca.[Number Of Payments] ,         ca.[Average Payment] ,         ca.[Total Paid] FROM    dbo.member m         CROSS APPLY ( SELECT    member_no 'Member Number' ,                                 AVG(payment_amt) 'Average Payment' ,                                 SUM(payment_amt) 'Total Paid' ,                                 COUNT(Payment_No) 'Number Of Payments'                       FROM      dbo.payment                       WHERE     member_no = m.member_no                       GROUP BY  member_no                       HAVING    COUNT(Payment_No) > 1                     ) ca /********/                    /* CTEs  */ /********/ ; WITH    Payments           AS ( SELECT   member_no 'Member Number' ,                         AVG(payment_amt) 'Average Payment' ,                         SUM(payment_amt) 'Total Paid' ,                         COUNT(Payment_No) 'Number Of Payments'                FROM     dbo.payment                GROUP BY member_no                HAVING   COUNT(Payment_No) > 1              ),         MemberInfo           AS ( SELECT   p.[Member Number] ,                         m.lastname ,                         m.firstname ,                         p.[Number Of Payments] ,                         p.[Average Payment] ,                         p.[Total Paid]                FROM     dbo.member m                         JOIN Payments p ON m.member_no = p.[Member Number]              )     SELECT  *     FROM    MemberInfo /************************/ /* SELECT with Grouping   */ /************************/ SELECT  p.member_no 'Member Number' ,         m.lastname ,         m.firstname ,         COUNT(Payment_No) 'Number Of Payments' ,         AVG(payment_amt) 'Average Payment' ,         SUM(payment_amt) 'Total Paid' FROM    dbo.payment p         JOIN dbo.member m ON m.member_no = p.member_no GROUP BY p.member_no ,         m.lastname ,         m.firstname HAVING  COUNT(Payment_No) > 1   We can see what is going on in SQL’s brain by looking at the execution plan.  The Execution Plan will demonstrate which steps and in what order SQL executes those steps, and what percentage of batch time each query takes.  SO….if I execute all 4 of these queries in a single batch, I will get an idea of the relative time SQL takes to execute them, and how it renders the Execution Plan.  We can settle this once and for all.  Here is what SQL did with these queries:   Not only did the queries take the same amount of time to execute, SQL generated the same Execution Plan for each of them.  Everybody is right…..I guess we can all finally go to lunch together!  But wait a second, I may not be a fighter, but I AM an instigator.     Let’s see how a table variable stacks up.  Here is the code I executed: /********************/ /*  Table Variable  */ /********************/ DECLARE @AggregateTable TABLE     (       member_no INT ,       AveragePayment MONEY ,       TotalPaid MONEY ,       NumberOfPayments MONEY     ) INSERT  @AggregateTable         SELECT  member_no 'Member Number' ,                 AVG(payment_amt) 'Average Payment' ,                 SUM(payment_amt) 'Total Paid' ,                 COUNT(Payment_No) 'Number Of Payments'         FROM    dbo.payment         GROUP BY member_no         HAVING  COUNT(Payment_No) > 1   SELECT  at.member_no 'Member Number' ,         m.lastname ,         m.firstname ,         at.NumberOfPayments 'Number Of Payments' ,         at.AveragePayment 'Average Payment' ,         at.TotalPaid 'Total Paid' FROM    @AggregateTable at         JOIN dbo.member m ON m.member_no = at.member_no In the interest of keeping things in groupings of 4, I removed the last query from the previous batch and added the table variable query.  Here’s what I got:     Since we first insert into the table variable, then we read from it, the Execution Plan renders 2 steps.  BUT, the combination of the 2 steps is only 22% of the batch.  It is actually faster than the other methods even though it is treated as 2 separate queries in the Execution Plan.  The argument I often hear against Table Variables is that SQL only estimates 1 row for the table size in the Execution Plan.  While this is true, the estimate does not come in to play until you read from the table variable.  In this case, the table variable had 6,706 rows, but it still outperformed the other queries.  People argue that table variables should only be used for hash or lookup tables.  The fact is, you have control of what you put IN to the variable, so as long as you keep it within reason, these results suggest that a table variable is a viable alternative to sub-queries. If anyone does volume testing on this theory, I would be interested in the results.  My suspicion is that there is a breaking point where efficiency goes down the tubes immediately, and it would be interesting to see where the threshold is. Coding SQL is a matter of style.  If you’ve been around since they introduced DB2, you were probably taught a little differently than a recent computer science graduate.  If you have a company standard, I strongly recommend you follow it.    If you do not have a standard, generally speaking, there is no right or wrong answer when talking about the efficiency of these types of queries, and certainly no hard-and-fast rule.  Volume and infrastructure will dictate a lot when it comes to performance, so your results may vary in your environment.  Download the database and try it!

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• Logical Domain Modeling Made Simple

  - by Knut Vatsendvik

  How can logical domain modeling be made simple and collaborative? Many non-technical end-users, managers and business domain experts find it difficult to understand the visual models offered by many UML tools. This creates trouble in capturing and verifying the information that goes into a logical domain model. The tools are also too advanced and complex for a non-technical user to learn and use. We have therefore, in our current project, ended up with using Confluence as tool for designing the logical domain model with the help of a few very useful plugins. Big thanks to Ole Nymoen and Per Spilling for their expertise in this field that made this posting possible. Confluence Plugins Here is a list of Confluence plugins used in this solution. Install these before trying out the macros used below. Plugin Description Copy Space Allows a space administrator to copy a space, including the pages within the space Metadata Supports adding metadata to Wiki pages Label Manages labeling of pages Linking Contains macros for linking to templates, the dashboard and other Table Enhances the table capability in Confluence Creating a Confluence Space First we need to create a new confluence space for the domain model. Click the link Create a Space located below the list of spaces on the Dashboard. Please contact your Confluence administrator is you do not have permissions to do this.   For illustrative purpose all attributes and entities in this posting are based on my imaginary project manager domain model. When a logical domain model is good enough for being implemented, do a copy of the Confluence Space (see Copy Space plugin). In this way you create a stable version of the logical domain model while further design can continue with the new copied space. Typical will the implementation phase result in a database design and/or a XSD schema design. Add Space Templates Go to the Home page of your Confluence Space. Navigate to the Browse drop-down menu and click on Advanced. Then click the Templates option in the left navigation panel. Click Add New Space Template to add the following three templates. Name: attribute {metadata-list} || Name | | || Type | | || Format | | || Description | | {metadata-list} {add-label:attribute} Name: primary-type {metadata-list} || Name | || || Type | || || Format | || || Description | || {metadata-list} {add-label:primary-type} Name: complex-type {metadata-list} || Name | || || Description |  || {metadata-list} h3. Attributes || Name || Type || Format || Description || | [name] | {metadata-from:name|Type} | {metadata-from:name|Format} | {metadata-from:name|Description} | {add-label:complex-type,entity} The metadata-list macro (see Metadata plugin) will save a list of metadata values to the page. The add-label macro (see Label plugin) will automatically label the page. Primary Types Page Our first page to add will act as container for our primary types. Switch to Wiki markup when adding the following content to the page. | (+) {add-page:template=primary-type|parent=@self}Add new primary type{add-page} | {metadata-report:Name,Type,Format,Description|sort=Name|root=@self|pages=@descendents} Once the page is created, click the Add new primary type (create-page macro) to start creating a new pages. Here is an example of input to the LocalDate page. Embrace the LocalDate with square brackets [] to make the page linkable. Again switch to Wiki markup before editing. {metadata-list} || Name | [LocalDate] || || Type | Date || || Format | YYYY-MM-DD || || Description | Date in local time zone. YYYY = year, MM = month and DD = day || {metadata-list} {add-label:primary-type} The metadata-report macro will show a tabular report of all child pages.   Attributes Page The next page will act as container for all of our attributes. | (+) {add-page:template=attribute|parent=@self|title=attribute}Add new attribute{add-page} | {metadata-report:Name,Type,Format,Description|sort=Name|pages=@descendants} Here is an example of input to the startDate page. {metadata-list} || Name | [startDate] || || Type | [LocalDate] || || Format | {metadata-from:LocalDate|Format} || || Description | The projects start date || {metadata-list} {add-label:attribute} Using the metadata-from macro we fetch the text from the previously created LocalDate page. Complex Types Page The last page in this example shows how attributes can be combined together to form more complex types.   h3. Intro Overview of complex types in the domain model. | (+) {add-page:template=complex-type|parent=@self}Add a new complex type{add-page}\\ | {metadata-report:Name,Description|sort=Name|root=@self|pages=@descendents} Here is an example of input to the ProjectType page. {metadata-list} || Name | [ProjectType] || || Description | Represents a project || {metadata-list} h3. Attributes || Name || Type || Format || Description || | [projectId] | {metadata-from:projectId|Type} | {metadata-from:projectId|Format} | {metadata-from:projectId|Description} | | [name] | {metadata-from:name|Type} | {metadata-from:name|Format} | {metadata-from:name|Description} | | [description] | {metadata-from:description|Type} | {metadata-from:description|Format} | {metadata-from:description|Description} | | [startDate] | {metadata-from:startDate|Type} | {metadata-from:startDate|Format} | {metadata-from:startDate|Description} | {add-label:complex-type,entity} Gives us this Conclusion Using a web-based corporate Wiki like Confluence to create a logical domain model increases the collaboration between people with different roles in the enterprise. It’s my believe that this helps the domain model to be more accurate, and better documented. In our real project we have more pages than illustrated here to complete the documentation. We do also still use UML tools to create different types of diagrams that Confluence do not support. As a last tip, an ImageMap plugin can make those diagrams clickable when used in pages. Enjoy!

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• .NET 3.5 Installation Problems in Windows 8

  - by Rick Strahl

  Windows 8 installs with .NET 4.5. A default installation of Windows 8 doesn't seem to include .NET 3.0 or 3.5, although .NET 2.0 does seem to be available by default (presumably because Windows has app dependencies on that). I ran into some pretty nasty compatibility issues regarding .NET 3.5 which I'll describe in this post. I'll preface this by saying that depending on how you install Windows 8 you may not run into these issues. In fact, it's probably a special case, but one that might be common with developer folks reading my blog. Specifically it's the install order that screwed things up for me -  installing Visual Studio before explicitly installing .NET 3.5 from Windows Features - in particular. If you install Visual Studio 2010 I highly recommend you install .NET 3.5 from Windows features BEFORE you install Visual Studio 2010 and save yourself the trouble I went through. So when I installed Windows 8, and then looked at the Windows Features to install after the fact in the Windows Feature dialog, I thought - .NET 3.5 - who needs it. I'd be happy to not have to install .NET 3.5, but unfortunately I found out quite a while after initial installation that one of my applications/tools (DevExpress's awesome CodeRush) depends on it and won't install without it. Enabling .NET 3.5 in Windows 8 If you want to run .NET 3.5 on Windows 8, don't download an installer - those installers don't work on Windows 8, and you don't need to do this because you can use the Windows Features dialog to enable .NET 3.5: And that *should* do the trick. If you do this before you install other apps that require .NET 3.5 and install a non-SP1 one version of it, you are going to have no problems. Unfortunately for me, even after I've installed the above, when I run the CodeRush installer I still get this lovely dialog: Now I double checked to see if .NET 3.5 is installed - it is, both for 32 bit and 64 bit. I went as far as creating a small .NET Console app and running it to verify that it actually runs. And it does… So naturally I thought the CodeRush installer is a little whacky. After some back and forth Alex Skorkin on Twitter pointed me in the right direction: He asked me to look in the registry for exact info on which version of .NET 3.5 is installed here: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP where I found that .NET 3.5 SP1 was installed. This is the 64 bit key which looks all correct. However, when I looked under the 32 bit node I found: HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\NET Framework Setup\NDP\v3.5 Notice that the service pack number is set to 0, rather than 1 (which it was for the 64 bit install), which is what the installer requires. So to summarize: the 64 bit version is installed with SP1, the 32 bit version is not. Uhm, Ok… thanks for that! Easy to fix, you say - just install SP1. Nope, not so easy because the standalone installer doesn't work on Windows 8. I can't get either .NET 3.5 installer or the SP 1 installer to even launch. They simply start and hang (or exit immediately) without messages. I also tried to get Windows to update .NET 3.5 by checking for Windows Updates, which should pick up on the dated version of .NET 3.5 and pull down SP1, but that's also no go. Check for Updates doesn't bring down any updates for me yet. I'm sure at some random point in the future Windows will deem it necessary to update .NET 3.5 to SP1, but at this point it's not letting me coerce it to do it explicitly. How did this happen I'm not sure exactly whether this is the cause and effect, but I suspect the story goes like this: Installed Windows 8 without support for .NET 3.5 Installed Visual Studio 2010 which installs .NET 3.5 (no SP) I now had .NET 3.5 installed but without SP1. I then: Tried to install CodeRush - Error: .NET 3.5 SP1 required Enabled .NET 3.5 in Windows Features I figured enabling the .NET 3.5 Windows Features would do the trick. But still no go. Now I suspect Visual Studio installed the 32 bit version of .NET 3.5 on my machine and Windows Features detected the previous install and didn't reinstall it. This left the 32 bit install at least with no SP1 installed. How to Fix it My final solution was to completely uninstall .NET 3.5 *and* to reboot: Go to Windows Features Uncheck the .NET Framework 3.5 Restart Windows Go to Windows Features Check .NET Framework 3.5 and voila, I now have a proper installation of .NET 3.5. I tried this before but without the reboot step in between which did not work. Make sure you reboot between uninstalling and reinstalling .NET 3.5! More Problems The above fixed me right up, but in looking for a solution it seems that a lot of people are also having problems with .NET 3.5 installing properly from the Windows Features dialog. The problem there is that the feature wasn't properly loading from the installer disks or not downloading the proper components for updates. It turns out you can explicitly install Windows features using the DISM tool in Windows.dism.exe /online /enable-feature /featurename:NetFX3 /Source:f:\sources\sxs You can try this without the /Source flag first - which uses the hidden Windows installer files if you kept those. Otherwise insert the DVD or ISO and point at the path \sources\sxs path where the installer lives. This also gives you a little more information if something does go wrong.© Rick Strahl, West Wind Technologies, 2005-2012Posted in Windows  .NET   Tweet !function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs"); (function() { var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true; po.src = 'https://apis.google.com/js/plusone.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s); })();

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• How to Add a Business Card, or vCard (.vcf) File, to a Signature in Outlook 2013 Without Displaying an Image

  - by Lori Kaufman

  Whenever you add a Business Card to your signature in Outlook 2013, the Signature Editor automatically generates a picture of it and includes that in the signature as well as attaching the .vcf file. However, there is a way to leave out the image. To remove the business card image from your signature but maintain the attached .vcf file, you must make a change to the registry. NOTE: Before making changes to the registry, be sure you back it up. We also recommend creating a restore point you can use to restore your system if something goes wrong. Before changing the registry, we must add the Business Card to the signature and save it so a .vcf file of the contact is created in the Signatures folder. To do this, click the File tab. Click Options in the menu list on the left side of the Account Information screen. On the Outlook Options dialog box, click Mail in the list of options on the left side of the dialog box. On the Mail screen, click Signatures in the Compose messages section. For this example, we will create a new signature to include the .vcf file for your business card without the image. Click New below the Select signature to edit box. Enter a name for the new signature, such as Business Card, and click OK. Enter text in the signature editor and format it the way you want or insert a different image or logo. Click Business Card above the signature editor. Select the contact you want to include in the signature on the Insert Business Card dialog box and click OK. Click Save below the Select signature to edit box. This creates a .vcf file for the business card in the Signatures folder. Click on the business card image in the signature and delete it. You should only see your formatted text or other image or logo in the signature editor. Click OK to save your new signature and close the signature editor. Close Outlook as well. Now, we will open the Registry Editor to add a key and value to indicate where to find the .vcf to include in the signature we just created. If you’re running Windows 8, press the Windows Key + X to open the command menu and select Run. You can also press the Windows Key + R to directly access the Run dialog box. NOTE: In Windows 7, select Run from the Start menu. In the Open edit box on the Run dialog box, enter “regedit” (without the quotes) and click OK. If the User Account Control dialog box displays, click Yes to continue. NOTE: You may not see this dialog box, depending on your User Account Control settings. Navigate to the following registry key: HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Outlook\Signatures Make sure the Signatures key is selected. Select New | String Value from the Edit menu. NOTE: You can also right-click in the empty space in the right pane and select New | String Value from the popup menu. Rename the new value to the name of the Signature you created. For this example, we named the value Business Card. Double-click on the new value. In the Value data edit box on the Edit String dialog box, enter the value indicating the location of the .vcf file to include in the signature. The format is: <signature name>_files\<name of .vcf file> For our example, the Value data should be as follows: Business Card_files\Lori Kaufman The name of the .vcf file is generally the contact name. If you’re not sure of what to enter for the Value data for the new key value, you can check the location and name of the .vcf file. To do this, open the Outlook Options dialog box and access the Mail screen as instructed earlier in this article. However, press and hold the Ctrl key while clicking the Signatures button. The Signatures folder opens in Windows Explorer. There should be a folder in the Signatures folder named after the signature you created with “_files” added to the end. For our example, the folder is named Business Card_files. Open this folder. In this folder, you should see a .vcf file with the name of your contact as the name of the file. For our contact, the file is named Lori Kaufman.vcf. The path to the .vcf file should be the name of the folder for the signature (Business Card_files), followed by a “\”, and the name of the .vcf file without the extension (Lori Kaufman). Putting these names together, you get the path that should be entered as the Value data in the new key you created in the Registry Editor. Business Card_files\Lori Kaufman Once you’ve entered the Value data for the new key, select Exit from the File menu to close the Registry Editor. Open Outlook and click New Email on the Home tab. Click Signature in the Include section of the New Mail Message tab and select your new signature from the drop-down menu. NOTE: If you made the new signature the default signature, it will be automatically inserted into the new mail message. The .vcf file is attached to the email message, but the business card image is not included. All you will see in the body of the email message is the text or other image you included in the signature. You can also choose to include an image of your business card in a signature with no .vcf file attached.     

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• Oracle Unveils Industry’s Broadest Cloud Strategy

  - by kellsey.ruppel

  Oracle Unveils Industry’s Broadest Cloud Strategy Adds Social Cloud and Showcases early customers Redwood Shores, Calif. – June 6, 2012 “Almost seven years of relentless engineering and innovation plus key strategic acquisitions. An investment of billions. We are now announcing the most comprehensive Cloud on the planet Earth,” said Oracle CEO, Larry Ellison. “Most cloud vendors only have niche assets. They don’t have platforms to extend. Oracle is the only vendor that offers a complete suite of modern, socially-enabled applications, all based on a standards-based platform.” News Facts In a major strategy update today, Larry Ellison announced the industry’s broadest and most advanced Cloud strategy and introduced Oracle Cloud Social Services, a broad Enterprise Social Platform offering. Oracle Cloud delivers a broad set of industry-standards based, integrated services that provide customers with subscription-based access to Oracle Platform Services, Application Services, and Social Services, all completely managed, hosted and supported by Oracle. Offering a wide range of business applications and platform services, the Oracle Cloud is the only cloud to enable customers to avoid the data and business process fragmentation that occurs when using multiple, siloed public clouds. Oracle Cloud is powered by leading enterprise-grade infrastructure, including Oracle Exadata and Oracle Exalogic, providing customers and partners with a high-performance, reliable, and secure infrastructure for running critical business applications. Oracle Cloud enables easy self-service for both business users and developers. Business users can order, configure, extend, and monitor their applications. Developers and administrators can easily develop, deploy, monitor and manage their applications. As part of the event, Oracle also showcased several early Oracle Cloud customers and partners including system integrators and independent software vendors. Oracle Cloud Platform Services Built on a common, complete, standards-based and enterprise-grade set of infrastructure components, Oracle Cloud Platform Services enable customers to speed time to market and lower costs by quickly building, deploying and managing bespoke applications. Oracle Cloud Platform Services will include: Database Services to manage data and build database applications with the Oracle Database. Java Services to develop, deploy and manage Java applications with Oracle WebLogic. Developer Services to allow application developers to collaboratively build applications. Web Services to build Web applications rapidly using PHP, Ruby, and Python. Mobile Services to allow developers to build cross-platform native and HTML5 mobile applications for leading smartphones and tablets. Documents Services to allow project teams to collaborate and share documents through online workspaces and portals. Sites Services to allow business users to develop and maintain visually engaging .com sites Analytics Services to allow business users to quickly build and share analytic dashboards and reports through the Cloud. Oracle Cloud Application Services Oracle Cloud Application Services provides customers access to the industry’s broadest range of enterprise applications available in the cloud today, with built-in business intelligence, social and mobile capabilities. Easy to setup, configure, extend, use and administer, Oracle Cloud Application Services will include: ERP Services: A complete set of Financial Accounting, Project Management, Procurement, Sourcing, and Governance, Risk & Compliance solutions. HCM Services: A complete Human Capital Management solution including Global HR, Workforce Lifecycle Management, Compensation, Benefits, Payroll and other solutions. Talent Management Services: A complete Talent Management solution including Recruiting, Sourcing, Performance Management, and Learning. Sales and Marketing Services: A complete Sales and Marketing solution including Sales Planning, Territory Management, Leads & Opportunity Management, and Forecasting. Customer Experience Services: A complete Customer Service solution including Web Self-Service, Contact Centers, Knowledge Management, Chat, and e-mail Management. Oracle Cloud Social Services Oracle Cloud Social Services provides the most broad and complete enterprise social platform available in the cloud today.  With Oracle Cloud Social Services, enterprises can engage with their customers on a range of social media properties in a comprehensive and meaningful fashion including social marketing, commerce, service and listening. The platform also provides enterprises with a rich social networking solution for their employees to collaborate effectively inside the enterprise. Oracle’s integrated social platform will include: Oracle Social Network to enable secure enterprise collaboration and purposeful social networking for business. Oracle Social Data Services to aggregate data from social networks and enterprise data sources to enrich business applications. Oracle Social Marketing and Engagement Services to enable marketers to centrally create, publish, moderate, manage, measure and report on their social marketing campaigns. Oracle Social Intelligence Services to enable marketers to analyze social media interactions and to enable customer service and sales teams to engage with customers and prospects effectively. Supporting Resources Oracle Cloud – learn more cloud.oracle.com – sign up now Webcast – watch the replay About Oracle Oracle engineers hardware and software to work together in the cloud and in your data center. For more information about Oracle (NASDAQ:ORCL), visit www.oracle.com. TrademarksOracle and Java are registered trademarks of Oracle and/or its affiliates. Other names may be trademarks of their respective owners.

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• Using Web Services from an XNA 4.0 WP7 Game

  - by Michael Cummings

  Now that the Windows Phone 7 development tools have been out for a while, let’s talk about how you can use them. Windows Phone 7 ( WP7 ) has two application types that you can create, either Silverlight or XNA, and you can’t really mix the two together. The development environment for WP7 is a special edition of Visual Studio 2010 called Visual Studio 2010 Express for Windows Phone. This edition will be installed with the WP7 tools, even if you have a full edition of VS2010 already installed. While you can use your full edition of VS2010 to do WP7 development, this astute developer has noticed that there are a few things that you can only do in the Express for Windows Phone edition. So lets start by discussing WP7 networking. On the WP7 platform the only networking available is through Web Services using WCF or if you’re really masochistic, you’ll use the WebClient to do http. In Silverlight, it’s fairly easy to wire up a WCF proxy to call a web service and get some data. In the XNA projects, not so much. Create WCF Service First, we’ll create our service that will return some information that we need in our game. Open Visual Studio 2010, and create a new WCF Web Service project. We’ll use the default implementation as we only need to see how to use a service, we are not interested in creating a really cool service at this point. However you may want to follow the instructions in the comments of Service1.svc.cs to change the name to something better, I used DataService and IDataService for the interface. You should now be able to run the project and the WCF Test Client will load and properly enumerate your service. At this point we have a functional service that can be consumed by our XNA game. Consume the WCF Service Open Visual Studio 2010 Express for Windows Phone and create a new XNA Game Studio 4.0 Windows Phone Game project. Now if you try to add a service reference to the project, you’ll notice that the option is not available. However, if you add a Silverlight application to your solution, you’ll notice that you can create a service reference there. So using the Silverlight project, we can create the service reference. Unfortunately you can’t reference the Silverlight project from the XNA Game project, so using Windows Explorer copy the Service References folder from the Silverlight project directory to the XNA Game project directory, then add the folder to your XNA Game project. You’ll need to set the property Build Action to None for all the files, except for Reference.cs, which should be Build. Truely, we only need Reference.cs but I find it easier to copy the whole folder. If you try to compile at this point, you’ll notice that we are missing  a couple of references, System.Runtime.Serialization, System.Net and System.ServiceModel. Add these to the XNA Game project and you should build successfully. You’ll also need to copy the ServiceReference.ClientConfig file and add it to your project. The WCF infrastructure looks for this file and will complain if it can’t find it. You’ll need to set the Copy to Output Directory property to Copy if Newer. We now need to add the code to call the service and display the results on the screen. Go ahead and add a SpriteFont resource to the Content project and load it in the Game project. There’s nothing here that’s changed much from 3.1 other than your Content project is now under the Solution node and not the Project node. While you’re at it, add a string field to store the result of the service call, and intialize it to string.Empty. Then in the Draw method, write the string out to the screen, only if it does not equal string.Empty. Now to wrap this up, lets create a new field that’s of the type DataServiceClient. In the Initialize Method, create a new instance of this type using its default contructor, then in the LoadContent we can call the service. Since we can only call the GetData method of our service asynchronously we need to set up a Completed event handler first. Thankfully, Visual Studio helps out a lot there just create, using the tab key whatever VS says to. In the GetDataAsyncCompleted event handler assign the service result ( e.Result) to your string field. If you run your game, you should get something like this : Enjoy!

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• Rendering ASP.NET MVC Razor Views outside of MVC revisited

  - by Rick Strahl

  Last year I posted a detailed article on how to render Razor Views to string both inside of ASP.NET MVC and outside of it. In that article I showed several different approaches to capture the rendering output. The first and easiest is to use an existing MVC Controller Context to render a view by simply passing the controller context which is fairly trivial and I demonstrated a simple ViewRenderer class that simplified the process down to a couple lines of code. However, if no Controller Context is available the process is not quite as straight forward and I referenced an old, much more complex example that uses my RazorHosting library, which is a custom self-contained implementation of the Razor templating engine that can be hosted completely outside of ASP.NET. While it works inside of ASP.NET, it’s an awkward solution when running inside of ASP.NET, because it requires a bit of setup to run efficiently.Well, it turns out that I missed something in the original article, namely that it is possible to create a ControllerContext, if you have a controller instance, even if MVC didn’t create that instance. Creating a Controller Instance outside of MVCThe trick to make this work is to create an MVC Controller instance – any Controller instance – and then configure a ControllerContext through that instance. As long as an HttpContext.Current is available it’s possible to create a fully functional controller context as Razor can get all the necessary context information from the HttpContextWrapper().The key to make this work is the following method:/// <summary> /// Creates an instance of an MVC controller from scratch /// when no existing ControllerContext is present /// </summary> /// <typeparam name="T">Type of the controller to create</typeparam> /// <returns>Controller Context for T</returns> /// <exception cref="InvalidOperationException">thrown if HttpContext not available</exception> public static T CreateController<T>(RouteData routeData = null) where T : Controller, new() { // create a disconnected controller instance T controller = new T(); // get context wrapper from HttpContext if available HttpContextBase wrapper = null; if (HttpContext.Current != null) wrapper = new HttpContextWrapper(System.Web.HttpContext.Current); else throw new InvalidOperationException( "Can't create Controller Context if no active HttpContext instance is available."); if (routeData == null) routeData = new RouteData(); // add the controller routing if not existing if (!routeData.Values.ContainsKey("controller") && !routeData.Values.ContainsKey("Controller")) routeData.Values.Add("controller", controller.GetType().Name .ToLower() .Replace("controller", "")); controller.ControllerContext = new ControllerContext(wrapper, routeData, controller); return controller; }This method creates an instance of a Controller class from an existing HttpContext which means this code should work from anywhere within ASP.NET to create a controller instance that’s ready to be rendered. This means you can use this from within an Application_Error handler as I needed to or even from within a WebAPI controller as long as it’s running inside of ASP.NET (ie. not self-hosted). Nice.So using the ViewRenderer class from the previous article I can now very easily render an MVC view outside of the context of MVC. Here’s what I ended up in my Application’s custom error HttpModule: protected override void OnDisplayError(WebErrorHandler errorHandler, ErrorViewModel model) { var Response = HttpContext.Current.Response; Response.ContentType = "text/html"; Response.StatusCode = errorHandler.OriginalHttpStatusCode; var context = ViewRenderer.CreateController<ErrorController>().ControllerContext; var renderer = new ViewRenderer(context); string html = renderer.RenderView("~/Views/Shared/GenericError.cshtml", model); Response.Write(html); }That’s pretty sweet, because it’s now possible to use ViewRenderer just about anywhere in any ASP.NET application, not only inside of controller code. This also allows the constructor for the ViewRenderer from the last article to work without a controller context parameter, using a generic view as a base for the controller context when not passed:public ViewRenderer(ControllerContext controllerContext = null) { // Create a known controller from HttpContext if no context is passed if (controllerContext == null) { if (HttpContext.Current != null) controllerContext = CreateController<ErrorController>().ControllerContext; else throw new InvalidOperationException( "ViewRenderer must run in the context of an ASP.NET " + "Application and requires HttpContext.Current to be present."); } Context = controllerContext; }In this case I use the ErrorController class which is a generic controller instance that exists in the same assembly as my ViewRenderer class and that works just fine since ‘generically’ rendered views tend to not rely on anything from the controller other than the model which is explicitly passed.While these days most of my apps use MVC I do still have a number of generic pieces in most of these applications where Razor comes in handy. This includes modules like the above, which when they error often need to display error output. In other cases I need to generate string template output for emailing or logging data to disk. Being able to render simply render an arbitrary View to and pass in a model makes this super nice and easy at least within the context of an ASP.NET application!You can check out the updated ViewRenderer class below to render your ‘generic views’ from anywhere within your ASP.NET applications. Hope some of you find this useful.ResourcesViewRenderer Class in Westwind.Web.Mvc Library (Github)Original ViewRenderer ArticleRazor Hosting Library (GitHub)Original Razor Hosting Article© Rick Strahl, West Wind Technologies, 2005-2013Posted in ASP.NET  MVC   Tweet !function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs"); (function() { var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true; po.src = 'https://apis.google.com/js/plusone.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s); })();

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• Clean Up the New Ubuntu Grub2 Boot Menu

  - by Trevor Bekolay

  Ubuntu adopted the new version of the Grub boot manager in version 9.10, getting rid of the old problematic menu.lst. Today we look at how to change the boot menu options in Grub2. Grub2 is a step forward in a lot of ways, and most of the annoying menu.lst issues from the past are gone. Still, if you’re not vigilant with removing old versions of the kernel, the boot list can still end up being longer than it needs to be. Note: You may have to hold the SHIFT button on your keyboard while booting up to get this menu to show. If only one operating system is installed on your computer, it may load it automatically without displaying this menu. Remove Old Kernel Entries The most common clean up task for the boot menu is to remove old kernel versions lying around on your machine. In our case we want to remove the 2.6.32-21-generic boot menu entries. In the past, this meant opening up /boot/grub/menu.lst…but with Grub2, if we remove the kernel package from our computer, Grub automatically removes those options. To remove old kernel versions, open up Synaptic Package Manager, found in the System > Administration menu. When it opens up, type the kernel version that you want to remove in the Quick search text field. The first few numbers should suffice. For each of the entries associated with the old kernel (e.g. linux-headers-2.6.32-21 and linux-image-2.6.32-21-generic), right-click and choose Mark for Complete Removal. Click the Apply button in the toolbar and then Apply in the summary window that pops up. Close Synaptic Package Manager. The next time you boot up your computer, the Grub menu will not contain the entries associated with the removed kernel version. Remove Any Option by Editing /etc/grub.d If you need more fine-grained control, or want to remove entries that are not kernel versions, you must change the files located in /etc/grub.d. /etc/grub.d contains files that hold the menu entries that used to be contained in /boot/grub/menu.lst. If you want to add new boot menu entries, you would create a new file in this folder, making sure to mark it as executable. If you want to remove boot menu entries, as we do, you would edit files in this folder. If we wanted to remove all of the memtest86+ entries, we could just make the 20_memtest86+ file non-executable, with the terminal command sudo chmod –x 20_memtest86+ Followed by the terminal command sudo update-grub Note that memtest86+ was not found by update-grub because it will only consider executable files. However, instead, we’re going to remove the Serial console 115200 entry for memtest86+… Open a terminal window Applications > Accessories > Terminal. In the terminal window, type in the command: sudo gedit /etc/grub.d/20_memtest86+ The menu entries are found at the bottom of this file. Comment out the menu entry for serial console 115200 by adding a “#” to the start of each line. Save and close this file. In the terminal window you opened, enter in the command sudo update-grub Note: If you don’t run update-grub, the boot menu options will not change! Now, the next time you boot up, that strange entry will be gone, and you’re left with a simple and clean boot menu. Conclusion While changing Grub2’s boot menu may seem overly complicated to legacy Grub masters, for normal users, Grub2 means that you won’t have to change the boot menu that often. Fortunately, if you do have to do it, the process is still pretty easy. For more detailed information about how to change entries in Grub2, this Ubuntu forum thread is a great resource. If you’re using an older version of Ubuntu, check out our article on how to clean up Ubuntu grub boot menu after upgrades. Similar Articles Productive Geek Tips Clean Up Ubuntu Grub Boot Menu After UpgradesReinstall Ubuntu Grub Bootloader After Windows Wipes it OutChange the GRUB Menu Timeout on UbuntuHow To Switch to Console Mode for Ubuntu VMware GuestSet Windows as Default OS when Dual Booting Ubuntu TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips VMware Workstation 7 Acronis Online Backup DVDFab 6 Revo Uninstaller Pro Daily Motivator (Firefox) FetchMp3 Can Download Videos & Convert Them to Mp3 Use Flixtime To Create Video Slideshows Creating a Password Reset Disk in Windows Bypass Waiting Time On Customer Service Calls With Lucyphone MELTUP – "The Beginning Of US Currency Crisis And Hyperinflation"

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• CQRS &ndash; Questions and Concerns

  - by Dylan Smith

  I’ve been doing a lot of learning on CQRS and Event Sourcing over the last little while and I have a number of questions that I haven’t been able to answer. 1. What is the benefit of CQRS when compared to a typical DDD architecture that uses Event Sourcing and properly captures intent and behavior via verb-based commands? (other than Scalability) 2. When using CQRS what do you do with complex query-based logic? I’m going to elaborate on #1 in this blog post and I’ll do a follow-up post on #2. I watched through Greg Young’s video on the business benefits of CQRS + Event Sourcing and first let me say that I thought it was an excellent presentation that really drives home a lot of the benefits to this approach to architecture (I watched it twice in a row I enjoyed it so much!). But it didn’t answer some of my questions fully (I wish I had been there to ask these of Greg in person!). So let me pick apart some of the points he makes and how they relate to my first question above. I’m completely sold on the idea of event sourcing and have a clear understanding of the benefits that it brings to the table, so I’m not going to question that. But you can use event sourcing without going to a CQRS architecture, so my main question is around the benefits of CQRS + Event Sourcing vs Event Sourcing + Typical DDD architecture Architecture with Event Sourcing + Commands on Left, CQRS on Right Greg talks about how the stereotypical architecture doesn’t support DDD, but is that only because his diagram shows DTO’s coming up from the client. If we use the same diagram but allow the client to send commands doesn’t that remove a lot of the arguments that Greg makes against the stereotypical architecture? We can now introduce verbs into the system. We can capture intent now (storing it still requires event sourcing, but you can implement event sourcing without doing CQRS) We can create a rich domain model (as opposed to an anemic domain model) Scalability is obviously a benefit that CQRS brings to the table, but like Greg says, very few of the systems we create truly need significant scalability Greg talks about the ability to scale your development efforts. He says CQRS allows you to split the system into 3 parts (Client, Domain/Commands, Reads) and assign 3 teams of developers to work on them in parallel; letting you scale your development efforts by 3x with nearly linear gains. But in the stereotypical architecture don’t you already have 2 separate modules that you can split your dev efforts between: The client that sends commands/queries and receives DTO’s, and the Domain which accepts commands/queries, and generates events/DTO’s. If this is true it’s not really a 3x scaling you achieve with CQRS but merely a 1.5x scaling which while great doesn’t sound nearly as dramatic (“I can do it with 10 devs in 12 months – let me hire 5 more and we can have it done in 8 months”). Making the Query side “stupid simple” such that you can assign junior developers (or even outsource it) sounds like a valid benefit, but I have some concerns over what you do with complex query-based logic/behavior. I’m going to go into more detail on this in a follow-up blog post shortly. He also seemed to focus on how “stupid-simple” it is doing queries against the de-normalized data store, but I imagine there is still significant complexity in the event handlers that interpret the events and apply them to the de-normalized tables. It sounds like Greg suggests that because we’re doing CQRS that allows us to apply Event Sourcing when we otherwise wouldn’t be able to (~33:30 in the video). I don’t believe this is true. I don’t see why you wouldn’t be able to apply Event Sourcing without separating out the Commands and Queries. The queries would just operate against the domain model instead of the database. But you’d still get the benefits of Event Sourcing. Without CQRS the queries would only be able to operate against the current state rather than the event history, but even in CQRS the domain behaviors can only operate against the current state and I don’t see that being a big limiting factor. If some query needs to operate against something that is not captured by the current state you would just have to update the domain model to capture that information (no different than if that statement were made about a Command under CQRS). Some of the benefits I do see being applicable are that your domain model might end up being simpler/smaller since it only needs to represent the state needed to process commands and not worry about the reads (like the Deactivate Inventory Item and associated comment example that Greg provides). And also commands that can be handled in a Transaction Script style manner by the command handler simply generating events and not touching the domain model. It also makes it easier for your senior developers to focus on the command behavior and ignore the queries, which is usually going to be a better use of their time. And of course scalability. If anybody out there has any thoughts on this and can help educate me further, please either leave a comment or feel free to get in touch with me via email:

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• XNA Notes 004

  - by George Clingerman

  The XNA community has been crazy busy again. It always make me fee like such a slacker collecting all of these notes as I see the tremendous output from people all over the world and it’s incredible and humbling. There are some amazingly skilled people working with XNA. On another not, I’m going to take a minute to get on my soapbox and say, if you are developing ANYTHING and are not using some sort of source/revision control, START IMMEDIATELY. This applies to teams of one. Projects for fun. And “I back up my hard drive” or “I use dropbox!” does NOT count as using source control. You’ll be doing yourself a HUGE favor if you find one, learn to use it and integrate it into your everyday workflow. I personally use Subversion. It’s hosted offsite at xp.dev.com and I use TortoiseSVN as my front end to interface with the repository. It’s simple and easy to use and has saved me from myself so many time. Honestly, get setup with some type of source control immediately. If you don’t understand how, grab another developer that does and have them walk you through setup and the basics of using it. Ok, I’m done. On to the notes… The XNA Team Only 14 days left to Submit XNA GS 3.1 Games! http://blogs.msdn.com/b/xna/archive/2011/01/24/14-days-left-to-submit-xna-gs-3-1-games-on-app-hub.aspx Shawn Hargreaves shares some great information on Exception Handling best practices on the XNA forums http://forums.create.msdn.com/forums/p/73333/448556.aspx#448556 http://blogs.msdn.com/b/ericlippert/archive/2008/09/10/vexing-exceptions.aspx XNA MVPs @CatalinZima gives us a peek at Chicken’s Can’t Fly http://www.amusedsloth.com/games/chickens-cant-fly/ Screen-space deformations in XNA for WP7 from Catalin Zima http://twitter.com/CatalinZima/statuses/30313083767357440 http://www.amusedsloth.com/2011/01/screen-space-deformations-in-xna-for-windows-phone-7/ XNA Developers Going to GDC? Don’t miss the XNA panel hosted by a plethora of well known XNA community names! http://forums.create.msdn.com/forums/p/73576/448842.aspx#448842 MasterBlud does an interview with @Xalterax http://twitter.com/MasterBlud/statuses/28510774812999680 http://www.xboxhornet.com/wordpress/?p=7102 Luke Schneider of Radiangames posts about The Radiangames Style http://radiangames.com/?p=532 Holmade Games had a “vote for the new playable character” poll going on for Hurdle Turtle this past week http://holmadegames.blogspot.com/2011/01/new-level-pack-vote-for-your-favorite.html IGF v0.1.0.0 release post mortem http://indiefreaks.com/2011/01/24/v0-1-0-0-release-post-mortem/ James an Super Dunner post Good Morning Gato #46 and a look at the Vampire Smile box art http://www.ska-studios.com/2011/01/21/good-morning-gato-46/ http://www.ska-studios.com/2011/01/20/vampire-smiles-digital-box-art/ Alfredo Di Napoli creates Cow Pong using XNA and F#! http://alfredodinapoli.wordpress.com/2011/01/25/cow-pong-a-simple-xna-game-in-f/ Xbox LIVE Indie Games Signed In Podcast posts Episode #61 http://www.signedinpodcast.com/?p=559 Gamergeddon posts the January 23rd edition of XBLIG Round Up http://www.gamergeddon.com/2011/01/23/xbox-indie-games-round-up-january-23rd/ Indie Asylum posts Antipole Review http://www.indieasylum.com/reviews/38-xblig/112-antipole.html 1UPOrPosion Reviews OSR Unhinged http://www.1uporpoison.com/xblig/osr-unhinged/ DarkstarMatryx review Warbirds at Work http://www.darkstarmatryx.com/?p=185 Review of Aban Hawkins and the 1000 Spikes http://www.armlessoctopus.com/2011/01/24/xbox-indie-review-aban-hawkins-the-1000-spikes/ XboxHornet reviews Corrupted http://www.xboxhornet.com/wordpress/?p=7123 XBLIG 2010: The Best And The Worst http://www.gamasutra.com/blogs/JamieMann/20110121/6840/ Xbox LIVE Arcade Sales Analysis - an interesting read for XBLIG developers wondering how they’re doing compared to arcade.. http://www.gamerbytes.com/2011/01/xbla_sales_analysis_dec_2010.php Best of Indies for January 25th http://www.thisisfakediy.co.uk/articles/games/best-of-the-indies-25th-january-2011 Decimation X3 appears as an arcade machine in the wild! http://twitter.com/mdoucette/statuses/29605562484260864 XNA Game Development Guiseppe De Francesco (@PinoEire) announced Torque X 4.0 CEV is now in RC phase! http://www.garagegames.com/community/blogs/view/20779 DrMistry of mstargames shares his struggle (and mistakes) with learning to use the Content Pipeline http://www.mstargames.co.uk/mistryblogmain/35-genblog/181-pontent-cipeline-more-like-it.html New Tutorial posted XNA 2D Basic Collision Detection with Rotation from Ioannis Panagopoulos http://www.progware.org/Blog/post/XNA-2D-Basic-Collision-Detection-with-Rotation.aspx Sgt. Conker roars to life! Doing a much better (and prettier) job of collecting XNA news from around the interwebs. http://www.sgtconker.com/ http://www.sgtconker.com/2011/01/dedication-for-captain-boki/ http://www.sgtconker.com/2011/01/screen-space-deformations-in-xna-for-windows-phone-7/ http://www.sgtconker.com/2011/01/xna-4-0-light-pre-pass-2/ http://www.sgtconker.com/2011/01/indiefreaks-game-framework-0-1-0-0-released/ Offering a little free publicity for XBLIGs http://forums.create.msdn.com/forums/p/73465/448321.aspx#448321 Ben Kane writes about building loot tables from Excel using the Content Pipeline http://benkane.wordpress.com/2011/01/23/building-loot-tables-from-excel-using-the-content-pipeline/ Good tips on attracting a game artist AND an offer to create your cover art for FREE http://forums.create.msdn.com/forums/t/72998.aspx If you’re an XBLIG developer keeping your eye on places to release on the PC, might want to be watching the IndieCity blog. Seems like these guys are well on their way to constructing something worth watching. http://www.indiecity.com/blog/ DVMGames spotted a new crowd-funding site for Indies http://twitter.com/DVMGames/statuses/29947274767372289 http://www.8bitfunding.com/ Transmute continues to make progress and there’s a nice dev blog to follow along here http://forgottenstarstudios.com/blog/

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• SQL SERVER – PAGELATCH_DT, PAGELATCH_EX, PAGELATCH_KP, PAGELATCH_SH, PAGELATCH_UP – Wait Type – Day 12 of 28

  - by pinaldave

  This is another common wait type. However, I still frequently see people getting confused with PAGEIOLATCH_X and PAGELATCH_X wait types. Actually, there is a big difference between the two. PAGEIOLATCH is related to IO issues, while PAGELATCH is not related to IO issues but is oftentimes linked to a buffer issue. Before we delve deeper in this interesting topic, first let us understand what Latch is. Latches are internal SQL Server locks which can be described as very lightweight and short-term synchronization objects. Latches are not primarily to protect pages being read from disk into memory. It’s a synchronization object for any in-memory access to any portion of a log or data file.[Updated based on comment of Paul Randal] The difference between locks and latches is that locks seal all the involved resources throughout the duration of the transactions (and other processes will have no access to the object), whereas latches locks the resources during the time when the data is changed. This way, a latch is able to maintain the integrity of the data between storage engine and data cache. A latch is a short-living lock that is put on resources on buffer cache and in the physical disk when data is moved in either directions. As soon as the data is moved, the latch is released. Now, let us understand the wait stat type  related to latches. From Book On-Line: PAGELATCH_DT Occurs when a task is waiting on a latch for a buffer that is not in an I/O request. The latch request is in Destroy mode. PAGELATCH_EX Occurs when a task is waiting on a latch for a buffer that is not in an I/O request. The latch request is in Exclusive mode. PAGELATCH_KP Occurs when a task is waiting on a latch for a buffer that is not in an I/O request. The latch request is in Keep mode. PAGELATCH_SH Occurs when a task is waiting on a latch for a buffer that is not in an I/O request. The latch request is in Shared mode. PAGELATCH_UP Occurs when a task is waiting on a latch for a buffer that is not in an I/O request. The latch request is in Update mode. PAGELATCH_X Explanation: When there is a contention of access of the in-memory pages, this wait type shows up. It is quite possible that some of the pages in the memory are of very high demand. For the SQL Server to access them and put a latch on the pages, it will have to wait. This wait type is usually created at the same time. Additionally, it is commonly visible when the TempDB has higher contention as well. If there are indexes that are heavily used, contention can be created as well, leading to this wait type. Reducing PAGELATCH_X wait: The following counters are useful to understand the status of the PAGELATCH: Average Latch Wait Time (ms): The wait time for latch requests that have to wait. Latch Waits/sec: This is the number of latch requests that could not be granted immediately. Total Latch Wait Time (ms): This is the total latch wait time for latch requests in the last second. If there is TempDB contention, I suggest that you read the blog post of Robert Davis right away. He has written an excellent blog post regarding how to find out TempDB contention. The same blog post explains the terms in the allocation of GAM, SGAM and PFS. If there was a TempDB contention, Paul Randal explains the optimal settings for the TempDB in his misconceptions series. Trace Flag 1118 can be useful but use it very carefully. I totally understand that this blog post is not as clear as my other blog posts. I suggest if this wait stats is on one of your higher wait type. Do leave a comment or send me an email and I will get back to you with my solution for your situation. May the looking at all other wait stats and types together become effective as this wait type can help suggest proper bottleneck in your system. Read all the post in the Wait Types and Queue series. Note: The information presented here is from my experience and there is no way that I claim it to be accurate. I suggest reading Book OnLine for further clarification. All the discussions of Wait Stats in this blog are generic and vary from system to system. It is recommended that you test this on a development server before implementing it to a production server. Reference: Pinal Dave (http://blog.SQLAuthority.com)   Filed under: Pinal Dave, PostADay, SQL, SQL Authority, SQL Query, SQL Scripts, SQL Server, SQL Tips and Tricks, SQL Wait Stats, SQL Wait Types, T SQL, Technology

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• SQLAuthority News – A Real Story of Book Getting ‘Out of Stock’ to A 25% Discount Story Available

  - by pinaldave

  As many of my readers may know, I have recently written a few books.  Right now I’d like to talk about SQL Server Interview Questions and Answers (http://bit.ly/sqlinterviewbook ), my newest release. What inspired me to write this book was similar to my motivations for my previous titles – I wanted to help people understand SQL Server concepts and ace interview questions so that they could get a great job they love, as much as I love my own job. If you are new to SQL Server, don’t think I left you out of my book writing efforts. If you are new to the subject or have not had to deal with SQL Server in a long time, this book is perfect for someone who wants or needs a last minute refresher. If you are facing an upcoming interview and want to impress your future bosses, this book is perfect for getting you up to speed in a short time. However, if you are already an expert, you will still find a lot to learn and many pointers and suggestions that go deep into the subject. As I said before, I wrote this book in order to help my community, and I certainly hoped that this book would become popular. However, we decided to print a very limited number of copies to begin with. We did not think that it would sell out since much of the information is available for free online. We could not have been more wrong! We incorrectly estimated what people wanted. We did not realize that there is still a need and an interest for structured learning. So, with great reservations, we printed quite a large number of copies – and it still ran out in 36 hours! We got call from the online store with a request for more copies within 12 hours. But we had printed only as many as we had sent them. There were no extra copies. We finally talked to the printer to get more copies. However, due to festivals and holidays the copies could not be shipped to the online retailer for two days. We knew for sure that they were going to be out of the book for 48 hours. 48 hours – this was very difficult as the book was very highly anticipated. Many people wanted to buy this book quickly, and receive it soon in order to meet a deadline or to study for an upcoming test of their knowledge. But now this book was out of stock on the retail store. The way the online store works is that if the Indian-priced book is not there they list the US version of the book so that buyers will not be disappointed. The problem was that the US price of the book is three times more than the Indian price – which means one has to pay three times as much to buy this book instead of the previous very low price. We received a lot of communication on this subject, here are some examples: We are now businessmen and only focusing on money Why has the price tripled in 36 hours Why we are not honest with the price If the prices will ever come down And some of the letters we cannot post here! Well, finally after 48 hours the Indian stock was finally available online. Thanks to our printer who worked day and night to get all the copies printed. He divided the complete stock in two parts. The first part they sent immediately to online retailer  and the second part they kept with them to sell. Finally, the online retailer got them online promptly as well, and the price returned to normal. Our book once again got in business and became the eighth most popular new release in 36 hours. We appreciate your love and support. Without all of your interest and love we would have never come this far and the book would not be so successful. After thinking about all your support and how patient you were with our online troubles, the online retailer has decided to give an extra 25% discount for a limited time only. I think the 48 hours when the book was out of stock were very horrible and stressful and I’d like to apologize to my loyal readers for the mishap. I hope that the 25% off is enough to sooth any remaining hurt feelings, and that everyone will continue to learn and discover things in the book. Once again thank you so much and I truly hope that you all enjoy reading the book as much as I enjoyed writing it. My book SQL Server Interview Questions and Answers is available now. Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: About Me, Pinal Dave, PostADay, SQL, SQL Authority, SQL Interview Questions and Answers, SQL Query, SQL Server, SQL Tips and Tricks, SQLAuthority Book Review, SQLAuthority News, T SQL, Technology

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