Search Results

Search found 24117 results on 965 pages for 'write through'.

Page 466/965 | < Previous Page | 462 463 464 465 466 467 468 469 470 471 472 473  | Next Page >

• Distinction between API and frontend-backend

  - by Jason

  I'm trying to write a "standard" business web site. By "standard", I mean this site runs the usual HTML5, CSS and Javascript for the front-end, a back-end (to process stuff), and runs MySQL for the database. It's a basic CRUD site: the front-end just makes pretty whatever the database has in store; the backend writes to the database whatever the user enters and does some processing. Just like most sites out there. In creating my Github repositories to begin coding, I've realized I don't understand the distinction between the front-end back-end, and the API. Another way of phrasing my question is: where does the API come into this picture? I'm going to list some more details and then questions I have - hopefully this gives you guys a better idea of what my actual question is, because I'm so confused that I don't know the specific question to ask. Some more details: I'd like to try the Model-View-Controller pattern. I don't know if this changes the question/answer. The API will be RESTful I'd like my back-end to use my own API instead of allowing the back-end to cheat and call special queries. I think this style is more consistent. My questions: Does the front-end call the back-end which calls the API? Or does the front-end just call the API instead of calling the back-end? Does the back-end just execute an API and the API returns control to the back-end (where the back-end acts as the ultimate controller, delegating tasks)? Long and detailed answers explaining the role of the API alongside the front-end back-end are encouraged. If the answer depends on the model of programming (models other than the Model-View-Controller pattern), please describe these other ways of thinking of the API. Thanks. I'm very confused.

  Read the article

• Adding a forum to an existing site

  - by Andrew Heath

  I've got a site with ~500 registered members, 300 of which are what you'd call "active". Site data is kept in a MySQL dbase. I'd like to add a myBB forum to the site, but this question applies to any forum really. What I very much want to avoid is requiring my users to register both on the site and on the forum because my userbase is not technically literate and this would confuse a lot of them. However the forum software has its own registration, login, cookie, and password management system which naturally are different from the site's mechanics. I envision the following possibilities: install myBB into the existing database and customize the login code to unify the two systems. This would probably mean changing the site's code to use the myBB system as that would likely be less painful to refactor and wouldn't hurt future myBB upgrade ability. install myBB into separate database and write a bridging script of some sort that auto-registers existing site users with the forum if they elect to participate. Also check new forum registrations against the site's username list to prevent newcomers from taking existing names. run them fully separate and force users to re-register (easiest for ME, but least desirable for them) I would like a suggested course of action from those who have trod this path before... Thank you.

  Read the article

• Apache won't start after creating symbolic link

  - by Carlin

  I'm installing apache for the first time and trying to display some webpages on localhost. Apache's default path for serving web pages is /var/www/html/ but I don't have permissions to write there. Rather than change ownership of the entire directory, I decided to get rid of the /html/ folder in /var/www/ and created it in my home directory. Then I made a symbolic link ln -s /home/me/html/ /var/www/ hoping Apache would serve web pages from my home directory while keeping the default path and following the symbolic link to my home directory. When I go to start the apache service with service httpd start I get Job failed. See system journal and 'systemctl status' for details.

  Read the article

• VirtualBox 3.2 Release

  - by [email protected]

  The latest version of VirtualBox is out - version 3.2.  It is the first release as Oracle VirtualBox and there are a lot of new features.  Many of these I see directly impacting the Oracle VDI solution in upcoming releases (just my guess, of course), and I am updating my notebook as I write this. Er... OK - Done!There are enough features that they warrant you taking a look at this two-page VirtualBox Community Bulletin.pdf.  No point in me restating them.If you and your organization haven't tried VirtualBox, or you haven't looked at it in a while, you owe it to yourself to give this a run.  This is small, simple, powerful, software that allows you to do way more than most people would ever need in hosting a Virtual machine on you local machine.  I routinely will do a demo on a two-year-old Macbook running OS X locally, plus a Solaris 10 VM running the Sun Ray server, and a Windows XP VM and hang a couple Sun Rays off of it - and the performance is stellar.You can subscribe to the mailing lists and get access to the Beta releases as they come out as well, if you are into 'bleeding edge'.40,000 downloads a day is the current rate (before this new release), but it will jump for sure now.  Might as well join in!  

  Read the article

• How can dev teams prevent slow performance in consumer apps?

  - by Crashworks

  When I previously asked what's responsible for slow software, a few answers I've received suggested it was a social and management problem: This isn't a technical problem, it's a marketing and management problem.... Utimately, the product mangers are responsible to write the specs for what the user is supposed to get. Lots of things can go wrong: The product manager fails to put button response in the spec ... The QA folks do a mediocre job of testing against the spec ... if the product management and QA staff are all asleep at the wheel, we programmers can't make up for that. —Bob Murphy People work on good-size apps. As they work, performance problems creep in, just like bugs. The difference is - bugs are "bad" - they cry out "find me, and fix me". Performance problems just sit there and get worse. Programmers often think "Well, my code wouldn't have a performance problem. Rather, management needs to buy me a newer/bigger/faster machine." The fact is, if developers periodically just hunt for performance problems (which is actually very easy) they could simply clean them out. —Mike Dunlavey So, if this is a social problem, what social mechanisms can an organization put into place to avoid shipping slow software to its customers?

  Read the article

• Xubuntu 12.04 : Random boot to black screen

  - by Thibaud Ruelle

  My xubuntu 12.04 has worked flawlessly since install in September. However, lately I randomly have the following boot issue : The computer boots to grub, and after choosing xubuntu either boots normally or boots to a black screen. Here are some observations I have made : The black screen seems to happen randomly. The black screen does not seem to happen in safe mode (- nomodeset in grub). The black screen does not allow me to ctrl + alt + F1-6 into a terminal. The black screen allows me to use SysRq keys (Alt + SysRq + K does not work though). The black screen often happens on first boot in several hours and the computer usually boots normally after a RSEINUB. When the computer boots I get "SP5100 TCO timer: mmio address 0xfec000f0 already in use" at startup and "Could not write bytes: broken pipe" at shutdown. However research on these errors did not yield answers to my particular issue. Comparing Xorg.0.log (successful boot) and Xorg.0.log.old (black screen), and reading the answers to similar problem, it seems that I might have a X driver issue. However the system worked flawlessly since lately. Additional info on my system : ACER AO722 C62kk Operating system : 3.2.0-31-generic ubuntu Edit : I made a fresh install of Xubuntu 12.04 x64, the issue is still there ... (I have a separate /home so config. files were not erased). Edit 2 : I followed troubleshooting blank screen, so my new observations are without quiet and splash in grub : When the system boots normally, the screen goes black after grub then lights up and displays text information then goes to login screen. (After that the desktop starting time vary substantially, which is new and may be a separate issue ?). When the boot fails, after grub the screen goes black, lights up, goes black, lights up again and most times goes black again. At this point it responds to Alt+SysReq K by lighting up but no more, and has to be rebooted through Alt+SysReq+ RSEINUB. Thank you for your time and attention in advance ! Thibaud Ruelle

  Read the article

• Error with TextMate 2 --shell-escape and gnuplot 10.8.2

  - by Manuel

  I have had TM 1.X since a long time ago, but a week ago I updated my system to Mountain Lion 10.8.2 and installed TM2. The problem is that I write with LaTeX, and sometimes I use gnuplot for the graphs (I installed gnuplot with macports). But now it doesn't work because the --shell-escape doesn't work, this is the error message I get: Package pgfplots Error: Sorry, the gnuplot-result file '"untitled 2.pgf-plot.table"' could not be found. Maybe you need to enable the shell-escape feature? For pdflatex, this is ' pdflatex -shell-escape'. You can also invoke ' gnuplot .gnuplot' manually on the respective gnuplot file.. And then, looking around I discovered that it's not just gnuplot but everything which needs --shell-escape. Question What happened? How can I get TM have the correct rights so this works? It worked right in Snow Leopard with TM 1.5.

  Read the article

• Perl - can't flush STDOUT or STDERR

  - by Jim Salter

  Perl 5.14 from stock Ubuntu Precise repos. Trying to write a simple wrapper to monitor progress on copying from one stream to another: use IO::Handle; while ($bufsize = read (SOURCE, $buffer, 1048576)) { STDERR->printflush ("Transferred $xferred of $sendsize bytes\n"); $xferred += $bufsize; print TARGET $buffer; } This does not perform as expected (writing a line each time the 1M buffer is read). I end up seeing the first line (with a blank value of $xferred), and then the 7th and 8th lines (on an 8MB transfer). Been pounding my brains out on this for hours - I've read the perldocs, I've read the classic "Suffering from Buffering" article, I've tried everything from select and $|++ to IO::Handle to binmode (STDERR, "::unix") to you name it. I've also tried flushing TARGET with each line using IO::Handle (TARGET-flush). No dice. Has anybody else ever encountered this? I don't have any ideas left. Sleeping one second "fixes" the problem, but obviously I don't want to sleep a second every time I read a buffer just so my progress will output on the screen! FWIW, the problem is exactly the same whether I'm outputting to STDERR or STDOUT.

  Read the article

• How common is it to submit papers to journals or conferences outside of academia?

  - by Furry

  I worked in academia a few years, but more on the D-side of R&D. The race for papers never appealed to me and I'm a practical not theoretical type, but I do like reading papers on certain topics (e.g. Google Papers, NLP, FB papers, ...) a lot. How common is it that normally working developers submit papers to conferences or even journals? It seems to be somewhat common in certain companies (it's not common or encouraged in mine). Do journals or conferences even take papers by an academic nobody (BSc) under consideration? I ask, because I have a few rough ideas and I would just like to bring them into form, one way or the other. Bonus question: Is there a list of CS (in the widest sense) conferences/journals with short descriptions? PS (Four out of five researchers I met published quite some fluffy stuff for my taste. I am no expert, but those people told me sometimes themselves, that the implementation does not matter, just the idea and the presentation. I always wondered about that. I probably could write about ideas all day long (not instantly but with a bit of preparation), but the implementation and the practical part is the really hard part, that academia just does not like to be concerned with. Also many papers actually scream: I was written so the publication list of my author gets longer - which is a waste of time for everyone, and often a waste of tax money, too. When I think of CS-ish papers, I think of running implementations or actual data, like e.g. Google's Map Reduce, Serving Large-scale Batch Computed Data with Project Voldemort or the like.)

  Read the article

• Suggestions for a CMS markup language for PHP

  - by Yanick Rochon

  As a learning experience, and as project, I am attempting to write a CMS module for ZF2. One of the functionality I would like to have is the possibility of adding dynamic contents in the pages by calling PHP functions in the view scripts. However, I do not want to give the users freedom in writing PHP code directly inside the page content, but rather implement custom view helpers (or widgets) to handle logic. For example: calling partial, partialLoop, url, etc. specifying arguments and all. I liked the idea of extending Markdown but this would get complicated when trying to add custom CSS class to elements, etc. Then I had the idea of simply doing a preg_replace on some patterns. For example, the string : ### partialLoop:['partials/display.phtml',[{id:'p1',price:4.99},{id:'p2',price:12.34}]] ### would be replaced by <?php echo $this->partialLoop('partials/display.phtml', array(array('id'=>'p1','price'=>4.99),array('id'=>'p2','price'=>12.34))) ?> Obviously, there would be some caching done so the page content is not rendered everytime. Does this sound good? If not, what would be a good way of doing this? Or is there a project already being developed for doing this? (I'd like to avoid heavy third party libs and something fairly or fully compatible with ZF2 would be nice.) Thanks.

  Read the article

• Ping / Trace Route

  - by dbasnett

  More and more I see programmers developing web based applications that are based on what I call "ping-then-do" mentality. An example would be the application that pings the mail server before sending the mail. In a rather heated debate in another forum I made this statement, "If you are going to write programs that use the internet, you should at least have a basic idea of the fundamentals. The desire to "ping-then-do" tells me that many who are, don’t." On this forum and at Stack Overflow I see numerous questions about ping / trace route and wonder why? If it is acceptable to have a discussion about it here I would like to hear what others think. If not I assume it will be closed rapidly.

  Read the article

• Logging library for (c++) games

  - by Klaim

  I know a lot of logging libraries but didn't test a lot of them. (GoogleLog, Pantheios, the coming boost::log library...) In games, especially in remote multiplayer and multithreaded games, logging is vital to debugging, even if you remove all logs in the end. Let's say I'm making a PC game (not console) that needs logs (multiplayer and multithreaded and/or multiprocess) and I have good reasons for looking for a library for logging (like, I don't have time or I'm not confident in my ability to write one correctly for my case). Assuming that I need : performance ease of use (allow streaming or formating or something like that) reliable (don't leak or crash!) cross-platform (at least Windows, MacOSX, Linux/Ubuntu) Wich logging library would you recommand? Currently, I think that boost::log is the most flexible one (you can even log to remotely!), but have not good performance update: is for high performance, but isn't released yet. Pantheios is often cited but I don't have comparison points on performance and usage. I've used my own lib for a long time but I know it don't manage multithreading so it's a big problem, even if it's fast enough. Google Log seems interesting, I just need to test it but if you already have compared those libs and more, your advice might be of good use. Games are often performance demanding while complex to debug so it would be good to know logging libraries that, in our specific case, have clear advantages.

  Read the article

• Retrieving a specific value from “df -h” using shell

  - by diegodias

  When I use df -h, I get the following output: Filesystem Size Used Avail Use% Mounted on /dev/mapper/VolGroup00-LogVol00 59G 2.2G 54G 4% / /dev/sda1 122M 38M 78M 33% /boot tmpfs 1.1G 0 1.1G 0% /dev/shm 10.10.0.105:/somepath 11T 8.4T 2.1T 81% /storage4 10.11.0.101:/somepath 15T 8.9T 5.9T 61% /storage1 /dev/mapper/patha 5.0T 255G 4.8T 5% /storage5_vol0 /dev/mapper/pathb 5.0T 195G 4.9T 4% /storage5_vol1 /dev/mapper/pathc 5.0T 608G 4.5T 12% /storage5_vol2 I want to write a script that gets the value of Avail column on a specific storage. I used to use df -k /storage_name | tail -1 | awk '{print $3}' But the FileSystem column can have a value or not .. which would change the variable of my script from $3 to $4. How can I get the Avail on a single command line even if there are no values on the previous columns?

  Read the article

• (simple) linux HA with vmware vsphere?

  - by derhelge

  I hope my upcoming question is specific enough, and you are able and willing to support :-) We have several openSUSE VMs in an ESX-Cluster (three ESX-Servers) with an attached iSCSI-SAN. All of those Linux VMs are "single point of failure"-configured, which means in the case of a Web-Server: LAMP, storage, etc. everything on this machine. This was very simple and in case of a failure (in the last years: kernel panics or apache crashes) a simple reboot triggered by a script did it. But the problem is: How to upgrade/maintain the w(eb-)application or the underlying OS without downtime? This wasn't really managable and i did this in the early morning ;) How can i achieve a "simple" High-Availability Cluster now? I thought of: DRBD with heartbeat with 2 VMs. And for the storage a RDM (raw device mapped) LUN and change the read-write-permissions for both VMs. Is this a good idea? Anyone has a better solution?

  Read the article

• Informing Googlebot for deprecated pages

  - by trante

  I publish timetables in my website. For example last year I published Number 2 bus Summer 2013 timetable. I has pretty good ranking on Google SERPs for number 2 bus timetable But this year I added a new page with the name "Number 2 bus Summer 2014 timetable". When users search number 2 bus timetable in Google, they find 2013 timetable in first page of SERPs. But I want them to find 2014 timetable. Thy can reach 2014 page with the keywords number 2 bus timetable 2014. But most of the users doesn't write year name. So what's the proper way to say Googlebot that 2013 page is deprecated and newer version is 2014 page ? I created a link from 2013 page to 2013 page and added a deprecation alert for visitors. But I still see 2013 timetable in first page of Google SERPs. Of course it is possible to 301 redirect, 2013 page to 2014 page. But I want users to reach old pages to compare the differences between years. (As you would guess I have many pages like this.) Edit: Why I don't put timetables on same page and show different years' timetables with sorting. Because my old pages has good pagerank scores or SERPs. Removing these old page will remove them.

  Read the article

• Fourier transform software

  - by CFP

  Hello everyone! After spending a lot of time searching for this, I thought that some SuperUser gurus might know the answer :) I'm searching for an open source application to compute an FFT, that could: * Import a list of points from a text file (in any format, I could write conversion scripts if needed), for example 0,1; 1,2; 4,5 * Compute the associated discrete transform, and output the list of coefficients Ideally, it would also display the plot and the associated fourier decomposition on the same graph, to allow comparison, but this is not absolutely needed. It can be either on Windows or on Linux/Unix. Can you think of a solution? Thanks, CFP.

  Read the article

• Fatal error on "mode 120000" file during git -> svn migration

  - by Oliver

  Following instructions from the following website: http://code.google.com/p/support/wiki/ImportingFromGit I'm trying to migrate a git repository to svn, but during the "git rebase master tmp" step it fails with the following error after apply the first few patches: $ git rebase master tmp First, rewinding head to replay your work on top of it... Applying: Imported Applying: Cleaned up the readme file Applying: fix problem with versions fatal: unable to write file foobar mode 120000 Patch failed at 0003 fix problem with versions When you have resolved this problem run "git rebase --continue". If you would prefer to skip this patch, instead run "git rebase --skip". To restore the original branch and stop rebasing run "git rebase --abort". I understand that 120000 may refer to a symlink, but Subversion has supported symlinks for a long time now. Subversion installed is 1.6.5, Git is 1.6.3.3. Running on Ubuntu Linux. The system is not running out of disk space and this operation is taking place within my home directory so permissions should not be an issue.

  Read the article

• How do I compile a Wikipedia lens and install?

  - by user49523

  I read a tutorial about how to compile and install a Wikipedia lens, but it didn't work. The tutorial sounds easy - i just copied and pasted to the file that was suppose to edit. I have tried some times and here are 2 edits edit 1: import logging import optparse import gettext from gettext import gettext as _ gettext.textdomain('wikipedia') from singlet.lens import SingleScopeLens, IconViewCategory, ListViewCategory from wikipedia import wikipediaconfig import urllib2 import simplejson class WikipediaLens(SingleScopeLens): wiki = "http://en.wikipedia.org" def wikipedia_query(self,search): try: search = search.replace(" ", "|") url = ("%s/w/api.php?action=opensearch&limit=25&format=json&search=%s" % (self.wiki, search)) results = simplejson.loads(urllib2.urlopen(url).read()) print "Searching Wikipedia" return results[1] except (IOError, KeyError, urllib2.URLError, urllib2.HTTPError, simplejson.JSONDecodeError): print "Error : Unable to search Wikipedia" return [] class Meta: name = 'Wikipedia' description = 'Wikipedia Lens' search_hint = 'Search Wikipedia' icon = 'wikipedia.svg' search_on_blank=True # TODO: Add your categories articles_category = ListViewCategory("Articles", "dialog-information-symbolic") def search(self, search, results): for article in self.wikipedia_query(search): results.append("%s/wiki/%s" % (self.wiki, article), "http://upload.wikimedia.org/wikipedia/commons/6/63/Wikipedia-logo.png", self.articles_category, "text/html", article, "Wikipedia Article", "%s/wiki/%s" % (self.wiki, article)) pass edit 2: import urllib2 import simplejson import logging import optparse import gettext from gettext import gettext as _ gettext.textdomain('wikipediaa') from singlet.lens import SingleScopeLens, IconViewCategory, ListViewCategory from wikipediaa import wikipediaaconfig class WikipediaaLens(SingleScopeLens): wiki = "http://en.wikipedia.org" def wikipedia_query(self,search): try: search = search.replace(" ", "|") url = ("%s/w/api.php?action=opensearch&limit=25&format=json&search=%s" % (self.wiki, search)) results = simplejson.loads(urllib2.urlopen(url).read()) print "Searching Wikipedia" return results[1] except (IOError, KeyError, urllib2.URLError, urllib2.HTTPError, simplejson.JSONDecodeError): print "Error : Unable to search Wikipedia" return [] def search(self, search, results): for article in self.wikipedia_query(search): results.append("%s/wiki/%s" % (self.wiki, article), "http://upload.wikimedia.org/wikipedia/commons/6/63/Wikipedia-logo.png", self.articles_category, "text/html", article, "Wikipedia Article", "%s/wiki/%s" % (self.wiki, article)) pass class Meta: name = 'Wikipedia' description = 'Wikipedia Lens' search_hint = 'Search Wikipedia' icon = 'wikipedia.svg' search_on_blank=True # TODO: Add your categories articles_category = ListViewCategory("Articles", "dialog-information-symbolic") def search(self, search, results): # TODO: Add your search results results.append('https://wiki.ubuntu.com/Unity/Lenses/Singlet', 'ubuntu-logo', self.example_category, "text/html", 'Learn More', 'Find out how to write your Unity Lens', 'https://wiki.ubuntu.com/Unity/Lenses/Singlet') pass so .. what can i change in the edit ? (if anybody give me the entire edit file edited i will appreciate)

  Read the article

• Where should SQL/DB Queries be encapsulated in a software system?

  - by Stephen Bennet

  I frequently write small applications (either web based or otherwise) that require heavy database usage. i've attempted various ways of handling where to put the actual sql queries (sort of ad-hoc ORM systems). These include: Models that build themselves up - and only allowing SQL to be inside of a model. A sort of factory style method where the models are built by a factory class that is allowed to know about SQL. A third entity that maps models based on their fields/keys into the database and generates SQL code on the fly based on this. Is there a common knowledge of which method is best? Or another way I have missed? Clearly a lot of it will be based on the context of the system itself, which for me is usually to produce lightweight tools or utility frameworks. In experimenting, I've never found any of them that feel intuitively "right" and not clunky, but I also do not want to go for a full framework such as Django or Ruby - both because the tools I create are in a variety of languages and because they usually do not warrant that level of surrounding footprint.

  Read the article

• Translation and Localization Resources for UX Designers

  - by ultan o'broin

  Here is a handy list of translation and localization-related resources for user experience professionals. Following these will help you design an easily translatable user experience. Most of the references here are for web pages or software. Fundamentally, remember your designs will be consumed globally, and never divorce the design process from the development or deployment effort that goes into bringing your designs to life in code. Ask yourself today: Do you know how the text you are using in your designs are delivered to the customer, even in English? Key areas that UX designers always seen to fall foul of, in my space anyway, are: Terminology that is impossible to translate (jargon, multiple modifiers, gerunds) or is used inconsistently Poorly written, verbose text (really, just write well in English, no special considerations) String construction (concatenation of parts assembled dynamically) Composite widget positioning (my favourite) Hard-coded fonts, small font sizes, or character formatting or casing that doesn't work globally Format that is not separate from content Restricted real estate not allowing for text expansion in translation Forcing formatting with breaks, and hard-coding alphabetical sorting Graphics that do not work in Bi-Di languages (because they indicate directionality and can't flip) or contain embedded text. The problems of culturally offensive icons are well known by now in the enterprise applications space, though there are some dangers, such as the use of flags to indicate language, for example. Resources Internationalization Techniques: Authoring HTML & CSS Global By Design Insert Title Here : Variables in Interface Language Prose: Internationalisation Doc and help considerations I can deal with later.

  Read the article

• NTFS disk mounted as fuseblk in ubuntu 12.10 is very slow and a lot of errors when rsync. Is that not a rare thing?

  - by Pablo Marin-Garcia

  I am having problems with a NTFS disk mounted as a fuseblk in my ubuntu 12.10 through external usb3. When I did a 1.1TB backup with rsync the speed was 1-2MB/s (wiht a ext4 disk speed was 70 MB/s before and after trying the NTFS disk). Also after one hour errors started to appear: rsync: write failed on "xxx": No such file or directory recv_files: "yyy" is a directory #but this file is a FILE not a dir ??!! .... As this is the first time I have mounted the NTFS in linux for heavy usage (the data would be used in windows afterwards), I would like to know if this kind of thinks are common o was only that something became unstable in my system and a simply restart would probably have solved it. This leads me to the these questions: Can I trust fuse for manage NTFS disks? Or is a problem of the NTFS tools in linux not yet totally stables for writing? Do people is still suffering from low performance with fuse-NTFS vs ext4 (in the past I have read about people complaining about this)?

  Read the article

• links for 2010-03-31

  - by Bob Rhubart

  Andy Mulholland: Rethinking the narrow and deep expertise model "We increasingly realise that we have to read requirements in a more open way to decide what techniques can be used, what business experience can be added, etc, so the whole idea of encouraging ‘cross’ discipline understanding seems to look increasingly necessary as we look at how technology touches every part of business, and/or any other aspect of life. It is time to rethink the narrow and deep expertise model and consider T-shaped approaches where the depth is complimented by the width to understand how it might be used and how it fits with other capabilities and disciplines too." -- Andy Mulholland (tags: enterprisearchitecture) @vambenepe: Smoothing a discrete world "For the short term (until we sell one) there are three cars in my household. A manual transmission, an automatic and a CVT (continuous variable transmission). This makes me uniquely qualified to write about Cloud Computing." -- William Vambenepe (tags: otn oracle cloud) @fteter: The Price of Progress "I wonder about the price of progress on the business world. Do some of us get attached to old business models or software applications? Do we resist change for the better for emotional reasons? Are we sometimes impediments to progress just because we don't want things to change?" -- Oracle ACE Director Floyd Teter (tags: otn oracle oracleace progress innovation) Pat Shepherd: Enterprise Architecture should not be Arbitrary "If done properly the Business, Application and Information architectures are nailed down BEFORE any technological direction (SOA or otherwise) is set. Those 3 layers and Governance (people and processes), IMHO, are layers that should not vary much as they have everything to do with understanding the business -- from which technological conclusions can later be drawn." - Pat Shepherd, responding to a post by Jordan Braunstein. (tags: oracle otn enterprisearchitecture soa)

  Read the article

• Command-Query-Separation and multithreading safe interfaces

  - by Tobias Langner

  I like the command query separation pattern (from OOSC / Eiffel - basically you either return a value or you change the state of the class - but not both). This makes reasoning about the class easier and it is easier to write exception safe classes. Now, with multi threading, I run into a major problem: the separation of the query and the command basically invalidates the result from the query as anything can happen between those 2. So my question is: how do you handle command query separation in an multi-threaded environment? Clarification example: A stack with command query separation would have the following methods: push (command) pop (command - but does not return a value) top (query - returns the value) empty (query) The problem here is - I can get empty as status, but then I can not rely on top really retrieving an element since between the call of empty and the call of top, the stack might have been emptied. Same goes for pop & top. If I get an item using top, I can not be sure that the item that I pop is the same. This can be solved using external locks - but that's not exactly what I call threadsafe design.

  Read the article

• Best way to find the computer a user last logged on from?

  - by Garrett

  I am hoping that somewhere in Active Directory the "last logged on from [computer]" is written/stored, or there is a log I can parse out? The purpose of wanting to know the last PC logged on from is for offering remote support over the network - our users move around pretty infrequently, but I'd like to know that whatever I'm consulting was updating that morning (when they logged in, presumably) at minimum. I'm also considering login scripts that write the user and computer names to a known location I can reference, but some of our users don't like to logout for 15 days at a time. If there is an elegant solution that uses login scripts, definitely mention it - but if it happens to work for merely unlocking the station, that would be even better!

  Read the article

• The king is dead, long live the king&ndash;Cloud Evening 15th Feb in London

  - by Eric Nelson

  Advert alert :-) The UK's only Cloud user group The Cloud is the hot topic. You can’t escape hearing about it everywhere you go. Cloud Evening is the UK’s only cloud-focussed user group. Cloud Evening replaces UKAzureNet, with a new objective to cover all aspects of Cloud Computing, across all platforms, technologies and providers. We want to create a community for developers and architects to come together, learn, share stories and share experiences. Each event we’ll bring you two speakers talking about what’s hot in the world of Cloud. Our first event was a great success and we're now having the second exciting instalment. We're covering running third party applications on Azure and federated identity management. We will, of course, keep you fed and watered with beer and pizza. Spaces are limited so please sign-up now! Agenda 6.00pm – Registration 6.30pm – Windows Azure and running third-party software - using Elevated Privileges, Full IIS or VM Roles  (by @MarkRendle): We all know how simple it is to run your own applications on Azure, but how about existing software? Using the RavenDB document database software as an example, Mark will look at three ways to get 3rd-party software running on Azure, including the use of Start-up Tasks, Full IIS support and VM Roles, with a discussion of the pros and cons of each approach. 7.30pm – Beer and Pizza. 8.00pm – Federated identity – integrating Active Directory with Azure-based apps and Office 365  (by Steve Plank): Steve will cover off how to write great applications which leverage your existing on-premises Active Directory, along with providing seamless access to Office 365. We hope you can join us for what looks set to be a great evening. Register now

  Read the article

< Previous Page | 462 463 464 465 466 467 468 469 470 471 472 473  | Next Page >