Search Results

Search found 21769 results on 871 pages for 'check constraints'.

Page 433/871 | < Previous Page | 429 430 431 432 433 434 435 436 437 438 439 440  | Next Page >

• Oracle OpenWorld and JavaOne 2014 - Early Bird Registration

  - by Cinzia Mascanzoni

    #OOW14 Sponsor Oracle OpenWorld » Exhibit at Oracle OpenWorld » Don’t Miss Out on Early Bird Savings Oracle OpenWorld 2014 is several months away. So why register now, partners? Savings. And availability. Register early and you can secure your spot and hotel room for the world’s largest business and technology conference. Plus, you’ll save on sessions, keynotes, entertainment, and networking opportunities. Register Now Just What You'd Expect from Oracle OpenWorld. And More. You’re probably attending the conference for the IT programs and networking opportunities. You’ll find a wide selection. And that’s just the start. Because Oracle OpenWorld is more than just IT. Check out and benefit from all the conference activities, including benefits specific for Oracle PartnerNetwork (OPN) at OPN Central @ OpenWorld, including: Oracle OpenWorld Keynote OPN Keynote OPN General Sessions OPN AfterDark Reception OPN Central @ OpenWorld OPN Lounge Access Save Even More As a Group Are you planning to register five or more people for Oracle OpenWorld 2014? If so, take advantage of our Group Pass Purchase. Register a Group Today! SponsorOracle OpenWorld Get maximum exposure for your brand Find out how » Exhibit atOracle OpenWorld Meet your customers and prospects face-to-face. Reserve a booth now » Register for Oracle OpenWorld Today Learn more about Oracle OpenWorld   #OOW14 Copyright © 2014, Oracle Corporation and/or its affiliates. All rights reserved. Contact Us | Legal Notices and Terms of Use | Privacy Statement

  Read the article

• Why the huge difference between etch and lenny MySQL

  - by rmarimon

  I've been working on a program for the last year. The development environment is working with a database in MySQL running on debian etch version mysql Ver 14.12 Distrib 5.0.32, for pc-linux-gnu (i486) using readline 5.2. The production environment is working on debian lenny with version mysql Ver 14.12 Distrib 5.0.51a, for debian-linux-gnu (i486) using readline 5.2. I was just timing some database access and what takes in the development environment 150 seconds, takes 300 in the production environment. I checked the /etc/mysql/my.cnf files on both systems and the only differences are # development bind-address = 10.168.1.82 log_bin = /var/log/mysql/mysql-bin.log # production bind-address = 127.0.0.1 myisam-recover = BACKUP #log_bin = /var/log/mysql/mysql-bin.log I dump a database from the production and load it into the development and with the same server everything takes half the time !!! What should I check?

  Read the article

• Whew.... what a week!

  - by [email protected]

  Last week was a busy week for the UPK and Tutor teams at Oracle. It started with the the Collaborate Conference in Las Vegas and ended with our first UPK and Tutor Customer Advisory Board (CAB) meeting at Oracle HQ. The Collaborate Conference is a yearly event sponsored by three of the largest Oracle User Groups. • Oracle Applications User Group (OAUG) • Independent Oracle User Group (IOUG) • Quest - International User Group The User Groups are completely user run organizations with Oracle participation. If you've never attended a conference, time to start planning for the 2011 event in Orlando! If that's out of your reach, there are many regional and industry user groups that meet on a regular basis. They offer a great way to get involved, network with other users, and increase your knowledge around the Oracle applications. For a list of groups near you, check out the Oracle User Group Center. I'll add that the biggest meeting of Oracle users is at the Oracle Open World Conference in San Francisco in September, where we will have many UPK & Tutor focused development and customer sessions. More information on Oracle Open World will be forthcoming over the next few months. We hope to see many of you there! The CAB was a first for the UPK and Tutor team. Although we speak with customers regularly, this gave us an opportunity to meet in a more formal setting to discuss industry trends, business issues, and the direction of the products. Members serve a 2 year term and are required to attend 2 meetings per year, one in person, one via phone. We have some tweaking to do to our meeting format (most members wanted it to be longer!), but the overwhelming consensus was that it was a great success. There were many experiences and ideas shared and the wheels of the UPK and Tutor Development teams have been turning ever since. I'm sure you will see some of these discussions result in new product features over time. What a great week!

  Read the article

• The UIManager Pattern

  - by Duncan Mills

  One of the most common mistakes that I see when reviewing ADF application code, is the sin of storing UI component references, most commonly things like table or tree components in Session or PageFlow scope. The reasons why this is bad are simple; firstly, these UI object references are not serializable so would not survive a session migration between servers and secondly there is no guarantee that the framework will re-use the same component tree from request to request, although in practice it generally does do so. So there danger here is, that at best you end up with an NPE after you session has migrated, and at worse, you end up pinning old generations of the component tree happily eating up your precious memory. So that's clear, we should never. ever, be storing references to components anywhere other than request scope (or maybe backing bean scope). So double check the scope of those binding attributes that map component references into a managed bean in your applications.  Why is it Such a Common Mistake?  At this point I want to examine why there is this urge to hold onto these references anyway? After all, JSF will obligingly populate your backing beans with the fresh and correct reference when needed.   In most cases, it seems that the rational is down to a lack of distinction within the application between what is data and what is presentation. I think perhaps, a cause of this is the logical separation between business data behind the ADF data binding (#{bindings}) façade and the UI components themselves. Developers tend to think, OK this is my data layer behind the bindings object and everything else is just UI.  Of course that's not the case.  The UI layer itself will have state which is intrinsically linked to the UI presentation rather than the business model, but at the same time should not be tighly bound to a specific instance of any single UI component. So here's the problem.  I think developers try and use the UI components as state-holders for this kind of data, rather than using them to represent that state. An example of this might be something like the selection state of a tabset (panelTabbed), you might be interested in knowing what the currently disclosed tab is. The temptation that leads to the component reference sin is to go and ask the tabset what the selection is.  That of course is fine in context - e.g. a handler within the same request scoped bean that's got the binding to the tabset. However, it leads to problems when you subsequently want the same information outside of the immediate scope.  The simple solution seems to be to chuck that component reference into session scope and then you can simply re-check in the same way, leading of course to this mistake. Turn it on its Head  So the correct solution to this is to turn the problem on its head. If you are going to be interested in the value or state of some component outside of the immediate request context then it becomes persistent state (persistent in the sense that it extends beyond the lifespan of a single request). So you need to externalize that state outside of the component and have the component reference and manipulate that state as needed rather than owning it. This is what I call the UIManager pattern.  Defining the Pattern The  UIManager pattern really is very simple. The premise is that every application should define a session scoped managed bean, appropriately named UIManger, which is specifically responsible for holding this persistent UI component related state.  The actual makeup of the UIManger class varies depending on a needs of the application and the amount of state that needs to be stored. Generally I'll start off with a Map in which individual flags can be created as required, although you could opt for a more formal set of typed member variables with getters and setters, or indeed a mix. This UIManager class is defined as a session scoped managed bean (#{uiManager}) in the faces-config.xml.  The pattern is to then inject this instance of the class into any other managed bean (usually request scope) that needs it using a managed property.  So typically you'll have something like this:   <managed-bean>     <managed-bean-name>uiManager</managed-bean-name>     <managed-bean-class>oracle.demo.view.state.UIManager</managed-bean-class>     <managed-bean-scope>session</managed-bean-scope>   </managed-bean>  When is then injected into any backing bean that needs it:    <managed-bean>     <managed-bean-name>mainPageBB</managed-bean-name>     <managed-bean-class>oracle.demo.view.MainBacking</managed-bean-class>     <managed-bean-scope>request</managed-bean-scope>     <managed-property>       <property-name>uiManager</property-name>       <property-class>oracle.demo.view.state.UIManager</property-class>       <value>#{uiManager}</value>     </managed-property>   </managed-bean> In this case the backing bean in question needs a member variable to hold and reference the UIManager: private UIManager _uiManager;  Which should be exposed via a getter and setter pair with names that match the managed property name (e.g. setUiManager(UIManager _uiManager), getUiManager()).  This will then give your code within the backing bean full access to the UI state. UI components in the page can, of course, directly reference the uiManager bean in their properties, for example, going back to the tab-set example you might have something like this: <af:paneltabbed>   <af:showDetailItem text="First"                disclosed="#{uiManager.settings['MAIN_TABSET_STATE'].['FIRST']}"> ...   </af:showDetailItem>   <af:showDetailItem text="Second"                      disclosed="#{uiManager.settings['MAIN_TABSET_STATE'].['SECOND']}">     ...   </af:showDetailItem>   ... </af:panelTabbed> Where in this case the settings member within the UI Manger is a Map which contains a Map of Booleans for each tab under the MAIN_TABSET_STATE key. (Just an example you could choose to store just an identifier for the selected tab or whatever, how you choose to store the state within UI Manger is up to you.) Get into the Habit So we can see that the UIManager pattern is not great strain to implement for an application and can even be retrofitted to an existing application with ease. The point is, however, that you should always take this approach rather than committing the sin of persistent component references which will bite you in the future or shotgun scattered UI flags on the session which are hard to maintain.  If you take the approach of always accessing all UI state via the uiManager, or perhaps a pageScope focused variant of it, you'll find your applications much easier to understand and maintain. Do it today!

  Read the article

• NVIDIA same chipset, but different implementations - what is the difference?

  - by Horst Walter

  I have planned to buy a graphics card. When searching for a particular chipset (e.g. GTX 460) I find cards of different vendors (i.e. Gigabyte, Palit, PNY, ...). I can figure out differences in frequency, memory, and equipment. When I read test reports, usually a particular NVIDIA card is compared with its ATI/AMD "counterpart" - have not really found a comparison of all vendors for a particular NVIDIA chipset. So in order to make a decision: a) Are the drivers all the same for all the cards of a particular chipset (and provided by NVIDIA or the vendor?) b) How to figure out which card actually to buy. OK, I choose chipset, and memory, and check the card has the required ports, but then ....

  Read the article

• SortedDictionary and SortedList

  - by Simon Cooper

  Apart from Dictionary<TKey, TValue>, there's two other dictionaries in the BCL - SortedDictionary<TKey, TValue> and SortedList<TKey, TValue>. On the face of it, these two classes do the same thing - provide an IDictionary<TKey, TValue> interface where the iterator returns the items sorted by the key. So what's the difference between them, and when should you use one rather than the other? (as in my previous post, I'll assume you have some basic algorithm & datastructure knowledge) SortedDictionary We'll first cover SortedDictionary. This is implemented as a special sort of binary tree called a red-black tree. Essentially, it's a binary tree that uses various constraints on how the nodes of the tree can be arranged to ensure the tree is always roughly balanced (for more gory algorithmical details, see the wikipedia link above). What I'm concerned about in this post is how the .NET SortedDictionary is actually implemented. In .NET 4, behind the scenes, the actual implementation of the tree is delegated to a SortedSet<KeyValuePair<TKey, TValue>>. One example tree might look like this: Each node in the above tree is stored as a separate SortedSet<T>.Node object (remember, in a SortedDictionary, T is instantiated to KeyValuePair<TKey, TValue>): class Node { public bool IsRed; public T Item; public SortedSet<T>.Node Left; public SortedSet<T>.Node Right; } The SortedSet only stores a reference to the root node; all the data in the tree is accessed by traversing the Left and Right node references until you reach the node you're looking for. Each individual node can be physically stored anywhere in memory; what's important is the relationship between the nodes. This is also why there is no constructor to SortedDictionary or SortedSet that takes an integer representing the capacity; there are no internal arrays that need to be created and resized. This may seen trivial, but it's an important distinction between SortedDictionary and SortedList that I'll cover later on. And that's pretty much it; it's a standard red-black tree. Plenty of webpages and datastructure books cover the algorithms behind the tree itself far better than I could. What's interesting is the comparions between SortedDictionary and SortedList, which I'll cover at the end. As a side point, SortedDictionary has existed in the BCL ever since .NET 2. That means that, all through .NET 2, 3, and 3.5, there has been a bona-fide sorted set class in the BCL (called TreeSet). However, it was internal, so it couldn't be used outside System.dll. Only in .NET 4 was this class exposed as SortedSet. SortedList Whereas SortedDictionary didn't use any backing arrays, SortedList does. It is implemented just as the name suggests; two arrays, one containing the keys, and one the values (I've just used random letters for the values): The items in the keys array are always guarenteed to be stored in sorted order, and the value corresponding to each key is stored in the same index as the key in the values array. In this example, the value for key item 5 is 'z', and for key item 8 is 'm'. Whenever an item is inserted or removed from the SortedList, a binary search is run on the keys array to find the correct index, then all the items in the arrays are shifted to accomodate the new or removed item. For example, if the key 3 was removed, a binary search would be run to find the array index the item was at, then everything above that index would be moved down by one: and then if the key/value pair {7, 'f'} was added, a binary search would be run on the keys to find the index to insert the new item, and everything above that index would be moved up to accomodate the new item: If another item was then added, both arrays would be resized (to a length of 10) before the new item was added to the arrays. As you can see, any insertions or removals in the middle of the list require a proportion of the array contents to be moved; an O(n) operation. However, if the insertion or removal is at the end of the array (ie the largest key), then it's only O(log n); the cost of the binary search to determine it does actually need to be added to the end (excluding the occasional O(n) cost of resizing the arrays to fit more items). As a side effect of using backing arrays, SortedList offers IList Keys and Values views that simply use the backing keys or values arrays, as well as various methods utilising the array index of stored items, which SortedDictionary does not (and cannot) offer. The Comparison So, when should you use one and not the other? Well, here's the important differences: Memory usage SortedDictionary and SortedList have got very different memory profiles. SortedDictionary... has a memory overhead of one object instance, a bool, and two references per item. On 64-bit systems, this adds up to ~40 bytes, not including the stored item and the reference to it from the Node object. stores the items in separate objects that can be spread all over the heap. This helps to keep memory fragmentation low, as the individual node objects can be allocated wherever there's a spare 60 bytes. In contrast, SortedList... has no additional overhead per item (only the reference to it in the array entries), however the backing arrays can be significantly larger than you need; every time the arrays are resized they double in size. That means that if you add 513 items to a SortedList, the backing arrays will each have a length of 1024. To conteract this, the TrimExcess method resizes the arrays back down to the actual size needed, or you can simply assign list.Capacity = list.Count. stores its items in a continuous block in memory. If the list stores thousands of items, this can cause significant problems with Large Object Heap memory fragmentation as the array resizes, which SortedDictionary doesn't have. Performance Operations on a SortedDictionary always have O(log n) performance, regardless of where in the collection you're adding or removing items. In contrast, SortedList has O(n) performance when you're altering the middle of the collection. If you're adding or removing from the end (ie the largest item), then performance is O(log n), same as SortedDictionary (in practice, it will likely be slightly faster, due to the array items all being in the same area in memory, also called locality of reference). So, when should you use one and not the other? As always with these sort of things, there are no hard-and-fast rules. But generally, if you: need to access items using their index within the collection are populating the dictionary all at once from sorted data aren't adding or removing keys once it's populated then use a SortedList. But if you: don't know how many items are going to be in the dictionary are populating the dictionary from random, unsorted data are adding & removing items randomly then use a SortedDictionary. The default (again, there's no definite rules on these sort of things!) should be to use SortedDictionary, unless there's a good reason to use SortedList, due to the bad performance of SortedList when altering the middle of the collection.

  Read the article

• Call for authors for new eBook on the Windows Azure Platform

  - by Eric Nelson

  I intend to pull together a FREE eBook on the Windows Azure Platform – but I need your help to make it rock! If you have detailed experience of any aspect of the Windows Azure Platform and can spare a few hours of time to turn that into a short article (400 to 800 words) then please get in touch. This is not a big commitment but my suspicion is the end result will make for a cracking good read. I am hoping for a mix – everything from lessons learnt from early adopters to introductions to elements of the platform to getting technologies such as Ruby up and running on Azure. 10 to 20 articles sound about right – which means I am after 10 to 20 authors :) All I need from you right now is: One or two suggestions of topics you would like to cover A pointer to any example of your previous work – which could be as simple as a blog post or a work document. For simplicity, just drop me an email direct to eric.nelson A@T microsoft.com. BIG THANKS! Eric The provisional dates are: Confirm authors and topics by 3rd May Get first draft from all authors by 10th May Complete reviews by 17th May Final versions by 24th May Published by 31st May And finally, an example: To give you an idea of what I have in mind, check out the eBook we pulled together last December which has had several thousand downloads. However I’m thinking of making this one a little bit more fun/informal. More on that later. UK MSDN Flash eBook Best Technical Articles #2 - ericnel Related Links: Spread the word – 6 Weeks of FREE Azure Training UK Azure Online Community – join today. UK Windows Azure Site Start working with Windows Azure

  Read the article

• Work firewall blocking Gmail IMAP port

  - by Sean

  My work has a very over protective firewall. We use Google Apps for our email and so can access the web interface just fine. I use my laptop at work however (MacBook connected via WiFi through my AirPort Express), and prefer to use Sparrow to check my email. The problem is that our firewall blocks whatever port Gmail's IMAP server uses. I'm trying to figure out the easiest way to work around this. I'm guessing I'll need to use an SSH tunnel or VPN, but I'm looking for specific instructions. I'd prefer to only route the IMAP stuff around the firewall as opposed to using a VPN full time. I have two computers at home (one PC, one Mac Mini) that are always on and could probably act as a server if needed.

  Read the article

• DIR filenames that contain extensions

  - by Synetech

  I was just trying to check a dump-directory for any ZIP programs like PeaZip, NanoZip, etc. and ran into an odd problem that I have seen only a few times before. I used the following command to list files whose filenames contain zip (e.g., nanozip.zip, peazip2.rar, winzip-beta.exe, etc.): dir *zip* This listed any files whose filenames contain zip, but also all files with a .zip extension (e.g., foobar.zip). I then tried the following: dir *zip*.* This gave the same results. Does anyone know of a way to get the expected results? (I know that for may be able to do it, but the output won’t be correct.)

  Read the article

• How to track url redirects in browser?

  - by Prashant

  I have typed http://example.com/load/ in my browser window and pressed "ENTER" key. Now on press of enter this website redirects me to http://example.com/load/1/ and then http://example.com/load/2/ and then I finally landed on this url http://example.com/load/3/. These redirection happens at website end, I am not aware where I am going. But I finally landed on this url: http://example.com/load/3/ I want to track where all my browser gone all urls, I am not seeing it in my history as its redirect at website end. Is there any firefox addon or some toll which can track this for me? I am not sure where to ask this question, so asking it here, moderators please check!

  Read the article

• VirtualBox error 0x80004005

  - by maria

  Hi I was trying to run Windows XP under Virtual Box (host system Ubuntu 10.04) and I've got an error message saying: Kernel driver not installed (rc=-1908) The VirtualBox Linux kernel driver (vboxdrv) is either not loaded or there is a permission problem with /dev/vboxdrv. Re-setup the kernel module by executing '/etc/init.d/vboxdrv setup' as root. Users of Ubuntu, Fedora or Mandriva should install the DKMS package first. This package keeps track of Linux kernel changes and recompiles the vboxdrv kernel module if necessary. This is terminal output: maria@maria-laptop:~$ sudo /etc/init.d/vboxdrv setup * Stopping VirtualBox kernel modules * done. * Uninstalling old VirtualBox DKMS kernel modules * done. * Trying to register the VirtualBox kernel modules using DKMS * Failed, trying without DKMS * Recompiling VirtualBox kernel modules * done. * Starting VirtualBox kernel modules * done. After that I can run XP on Virtual Box, but when I try to log into user's account, I have the message that I have to register XP (I haven't done it yet, as each time I was cliking on pop-up window suggesting registration, nothing was happening). I click that I want to register it now and appears the message about error 0x80004005, which prevents Windows to check the license for that computer (the message is in Polish, so I don't post it here...). I forgot to install DKMS first, but I've done it after. What should I do to run virtual machine? It was using it already, the problem occured only today. Thanks for any suggestion

  Read the article

• AWS:EC2:: Why my web folder is called "html"??

  - by heathub

  P.S Q stands for Question. My environment is: Amazon linux 64 bit (Q1. i dont if its ubuntu or red-hat, is there any way to check?) And I need to run php and mysql, thus I installed httpd (Q2. is httpd == apache??), but on my default page, it says: please upload files to /var/www/html folder. Q3.This is the first time I set aws ec2 server myself, my previous experience is hosting with hosting company. Normally in hosting company, my web directory is called "www" or "public_html" or "htdocs".Why is my folder name is "/var/www/html"? Am I installed wrong apache?

  Read the article

• Final Man vs. Machine Round of Jeopardy Unfolds; Watson Dominates

  - by ETC

  The final round of IBM’s Watson against Ken Jenning and Brad Rutter ended last night with Watson coming out in a strong lead against its two human opponents. Read on to catch a video of the match and see just how quick Watson is on the draw. Watson tore through many of the answers, the little probability bar at the bottom of the screen denoting it was often 95%+ confident in its answers. Some of the more interesting stumbles were, like in the last matches, based on nuance. By far the biggest “What?” moment of the night, however, was when it answered the Daily Double question of “The New Yorker’s 1959 review of this said in its brevity and clarity, it is ‘unlike most such manuals, a book as well as a tool’”. Watson, inexplicably, answered “Dorothy Parker”. You can win them all, eh? Check out the video below to see Watson in action on its final day. Latest Features How-To Geek ETC How to Enable User-Specific Wireless Networks in Windows 7 How to Use Google Chrome as Your Default PDF Reader (the Easy Way) How To Remove People and Objects From Photographs In Photoshop Ask How-To Geek: How Can I Monitor My Bandwidth Usage? Internet Explorer 9 RC Now Available: Here’s the Most Interesting New Stuff Here’s a Super Simple Trick to Defeating Fake Anti-Virus Malware The Citroen GT – An Awesome Video Game Car Brought to Life [Video] Final Man vs. Machine Round of Jeopardy Unfolds; Watson Dominates Give Chromium-Based Browser Desktop Notifications a Native System Look in Ubuntu Chrome Time Track Is a Simple Task Time Tracker Google Sky Map Turns Your Android Phone into a Digital Telescope Walking Through a Seaside Village Wallpaper

  Read the article

• rewrite rule if iphone? [closed]

  - by daniel Crabbe

  hello there. just need one url on my site to check if its a mobile device and then rerite the url accordingly. want to rewrite; /play-reel/miranda-bowen/playpeaches-and-cream to /mobile/play-reel/miranda-bowen/playpeaches-and-cream RewriteCond %{HTTP_USER_AGENT} ^.*iPhone.*$ [NC] RewriteRule ^play-reel(.*)\$ mobile/play-reel$1 [R=302,NC] RewriteRule ^mobile/play-reel/([a-zA-Z0-9\-]+)/([a-zA-Z0-9\-]+)$ play-reel-new-html5-02.php?director=$1&video=$2 [L] # the 3rd line works but cant get the url to change for it to be picked up can anyone see what's wrong? There's no erro best, Dan

  Read the article

• Does it make sense to develop open source python library for database inspection?

  - by gruszczy

  Some time ago I came up with an idea for a library for database inspection. I started developing it and got some very basic functionality, just to check if that's possible. Recently however, I get second thoughts, whether such project would really be useful. I am actually planning to develop following software suite: library for python, that would provide easy interface to inspect database structure, desktop application in PyQt that would use the interface to provide graphical database inspection, web application in Django that would use the interface to provide database inspection through the browser. Do you think such suite would be useful for other developers/database administrators/analysts? I know, that there is pgadmin for PostgreSQL and some tool for sqlite3 and that there is Java tool called DBInspect. Usually I would be against creating new tool and rather join existing project, but I am not Java programmer (and I would rather stick to python or C, which I like) and none of these projects provide a library for database inspection. Anyway I would like to hear some opinions from fellow developers, whether such project make sense or I should try to spend my free time on developing something else.

  Read the article

• Fun with upgrading and BCP

  - by DavidWimbush

  I just had trouble with using BCP out via xp_cmdshell. Probably serves me right but that's a different issue. I got a strange error message 'Unable to resolve column level collations' which turned out to be a bit misleading. I wasted some time comparing the collations of the the server, the database and all the columns in the query. I got so desperate that I even read the Books Online article. Still no joy but then I tried the interweb. It turns out that calling bcp without qualifying it with a path causes Windows to search the folders listed in the Path environment variable - in that order - and execute the first version of BCP it can find. But when you do an in-place version upgrade, the new paths are added on the end of the Path variable so you don't get the latest version of BCP by default. To check which version you're getting execute bcp -v at the command line. The version number will correspond to SQL Server version numbering (eg. 10.50.n = 2008 R2). To examine and/or edit the Path variable, right-click on My Computer, select Properties, go to the Advanced tab and click on the Environment Variables button. If you change the variable you'll have to restart the SQL Server service before it takes effect.

  Read the article

• How to detect hard disk failure?

  - by Devator

  So, one of my servers has a hard disk failure. It's running software RAID, the system locked up and according to /proc/mdstat (and /var/log/messages), it's really down: Personalities : [raid1] md2 : active raid1 sdb2[1] 104320 blocks [2/1] [_U] md5 : active raid1 sdb5[1] 2104448 blocks [2/1] [_U] md6 : active raid1 sdb6[1] 830134656 blocks [2/1] [_U] md1 : active raid1 sdb1[1] 143363968 blocks [2/1] [_U] and Nov 5 22:04:37 m38501 smartd[4467]: Device: /dev/sda, not capable of SMART self-check However when I do smartctl -H /dev/sda, it passes the test. It also passes the test with smartctl --test=short /dev/sda. So, is smartctl a broken testing tool, or am I doing something completely off?

  Read the article

• Access Log Files

  - by Matt Watson

  Some of the simplest things in life make all the difference. For a software developer who is trying to solve an application problem, being able to access log files, windows event viewer, and other details is priceless. But ironically enough, most developers aren't even given access to them. Developers have to escalate the issue to their manager or a system admin to retrieve the needed information. Some companies create workarounds to solve the problem or use third party solutions.Home grown solution to access log filesSome companies roll their own solution to try and solve the problem. These solutions can be great but are not always real time, and don't account for the windows event viewer, config files, server health, and other information that is needed to fix bugs.VPN or FTP access to log file foldersCreate programs to collect log files and move them to a centralized serverModify code to write log files to a centralized placeExpensive solution to access log filesSome companies buy expensive solutions like Splunk or other log management tools. But in a lot of cases that is overkill when all the developers need is the ability to just look at log files, not do analytics on them.There has to be a better solution to access log filesStackify recently came up with a perfect solution to the problem. Their software gives developers remote visibility to all the production servers without allowing them to remote desktop in to the machines. They can get real time access to log files, windows event viewer, config files, and other things that developers need. This allows the entire development team to be more involved in the process of solving application defects.Check out their product to learn morehttp://www.Stackify.com

  Read the article

• Oracle OpenWorld Preview: Oracle Social Network Developer Challenge

  - by kellsey.ruppel

  Originally posted by Jake Kuramoto on The Apps Lab blog. Noel (@noelportugal) and I have been working on something new for OpenWorld (@oracleopenworld) for quite some time, and today, I got the final approvals to go ahead with the Oracle Social Network Developer Challenge. The skinny. The Challenge is a modified hackathon, designed to run during OpenWorld and JavaOne (@javaoneconf), and attendees of both conferences are welcome to join and compete for the single prize of $500 in Amazon gift cards. There’s only one prize, so bring your A-game. The Challenge begins Sunday, September 30 at 7 PM and ends Wednesday, October 3 at 4 PM. You can and should register now, but we won’t begin approving  registrations until Sunday at 7 PM. For legal reasons, you’ll need to register with a corporate email address, not a free webmail one, e.g. Gmail, Hotmail, Outlook, Yahoo Mail, ISP-provided mail, etc. If you work for a competitor of Oracle, sorry but you’re not eligible. Everything you need is in the cloud, including support, but if you need help or have questions, visit office hours in the OTN Lounge in the Howard Street tent Monday, October 1 and Tuesday, October 2 4-8 PM to get help from the product team. The judging begins Wednesday, October 3 at 4 PM. To be considered for the prize, you’ll need to attend to demo your working code to the judges. Attendees with badges from either OpenWorld or JavaOne are welcome in the OTN Lounge, so you’ll need one of those too. Did I mention, register now? Be sure to check out Jake's original post for the long-winded explanations.

  Read the article

• Apache mod_rewrite redirect with prefix

  - by Marc

  I am newbie with Apache's mod_rewrite and I'm having some difficulties getting it to do what I want. In my static directory, I have some javascript files (.js) with 2 kind of filename: xxxx.js which is the standard file name AT_xxxx.js (with prefixed filename) which has been duplicated from previous standard file name but also contains my customizations I would like to parse requests for each standard requested javascript file (xxxx.js) to check if a customized file exists (AT_xxxx.js) including all sub-directories. Then, in this case, use the custom file instead of the standard file (perhaps by internal redirect). I tried to figure this out for hours but something is still wrong. Note: Also, I don't know how to find custom files in sub-directories. DocumentRoot "/data/apps/dev0/custom/my_static" <filesMatch "\\.(js)$"> Options +FollowSymLinks RewriteEngine on RewriteCond %{DOCUMENT_ROOT}/AT_$1.js -f RewriteRule ^(.*[^/])/?$ %{DOCUMENT_ROOT}/AT_$1.js [QSA,L] </filesMatch>

  Read the article

• How can I route packets from one application to a virtual machine in windows 7?

  - by user836045

  I am trying to test an application running in windows 7, and I would like to send the packets it generates to a server VM (I am using virtualbox) on the local machine which will act as a simulation for when packets will be really sent over the internet to a distant server. I need to check for correctness of the packets in certain situations. Is there a way on windows to take packets produced by an application and instead of passing it to my router, pass it along to another process, i.e. my virtual machine. I'd prefer not to change any of the code on my application and would rather find an outside solution. Is there such a solution for windows 7?

  Read the article

• How does this game loop actually work?

  - by Nicolai

  I read this playfulJS post, about ray-casting: http://www.playfuljs.com/a-first-person-engine-in-265-lines/ It looks really interested, so I decided to look at his javascript. I am no expert in javascript, so I quickly got lost. It's the game loop "object" that really gets me. I simply don't understand how it works. From the code: function GameLoop() { this.frame = this.frame.bind(this); this.lastTime = 0; this.callback = function() {}; } GameLoop.prototype.start = function(callback) { this.callback = callback; requestAnimationFrame(this.frame); }; GameLoop.prototype.frame = function(time) { var seconds = (time - this.lastTime) / 1000; this.lastTime = time; if (seconds < 0.2) this.callback(seconds); requestAnimationFrame(this.frame); }; var loop = new GameLoop(); loop.start(function frame(seconds) { map.update(seconds); player.update(controls.states, map, seconds); camera.render(player, map); }); Now, what really confuses me here, is this bind stuff and how this actually loops. I am guessing, that if less than 0.2 seconds have passed, since the last time the loop was run, it simply goes back to re-check the time. If more than 0.2 seconds have passed, it leaves the frame function, and executes the 3 lines in the loop. But, if this is true, then how does the loop.start() get called again? And what on earth is the meaning of this.frame = this.frame.bind(this);? I've looked up prototypes bind() but I really don't understand it.

  Read the article

• Cannot run SSH or send commands to /etc/init.d/ssh

  - by ThinkBohemian

  When I attempt to execute any commands such as /etc/init.d/ssh restart or /etc/init.d/ssh start, I get no output. It just goes to the next command line (Ubuntu Hardy). I can even pass in junk parameters such as /etc/init.d/ssh asldkfjalskfdj and i get no warnings or error messages, it just goes to the next line. I can check in my processes: lsof -i :22 and don't see my ssh process. I also don't see my SSH process when i run: netstat -na --inet Any troubleshooting suggestions?

  Read the article

• [MINI HOW-TO] Remove a Network Computer from Windows Home Server

  - by Mysticgeek

  One of the cool features of Windows Home Server is the ability to backup and monitor the computers on your network. If you no longer need a machine on to be monitored or backed up, here we show you how to remove it. Remove Computer from WHS The process if straight-forward and basic –Open Windows Home Server Console and click on Computers & Backup. Right-click on the computer that you no longer need and click Remove. You’ll be prompted to verify that you want to remove the machine and delete all of its backup data. Check the box I am sure I want to remove this computer then click the Remove button. That’s all there is to it! The computer and all of its backup data is removed. Remember that if you remove a computer, all of its backup data will be deleted as well. If you no longer have the computer, you probably don’t need the backed up data anyway, but you’ll want to be sure you no longer need it before removing it. Similar Articles Productive Geek Tips GMedia Blog: Setting Up a Windows Home ServerRestore Files from Backups on Windows Home ServerCreate A Windows Home Server Home Computer Restore DiscInstalling Windows Home ServerChange Ubuntu Server from DHCP to a Static IP Address 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 Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 PCmover Professional Beware Hover Kitties Test Drive Mobile Phones Online With TryPhone Ben & Jerry’s Free Cone Day, 3/23/10 New Stinger from McAfee Helps Remove ‘FakeAlert’ Threats Google Apps Marketplace: Tools & Services For Google Apps Users Get News Quick and Precise With Newser

  Read the article

• SQL SERVER – Poll – What would you love to see in SQL in Sixty Seconds?

  - by Pinal Dave

  Last week, I had my very first SQL in Sixty Seconds Video of this year. Lots of people send me email asking for me to continue this series as it was extremely fun at times to watch the video. I am going to start the series again in the month of June. However, I need your help to decide what would like to see in SQL in Sixty Seconds Videos. Here are quick poll and I requesting you to help me with the poll. Take Our Poll (function(d,c,j){if(!d.getElementById(j)){var pd=d.createElement(c),s;pd.id=j;pd.src='http://s1.wp.com/wp-content/mu-plugins/shortcodes/js/polldaddy-shortcode.js';s=d.getElementsByTagName(c)[0];s.parentNode.insertBefore(pd,s);} else if(typeof jQuery !=='undefined')jQuery(d.body).trigger('pd-script-load');}(document,'script','pd-polldaddy-loader')); Contest  If you leave a comment to this blog post and if I build a SQL in Sixty Seconds Video on it. I will send you a surprise gift (worth USD 25). Earlier Videos Here are few of my previous SQL in Sixty Seconds Video. Please check them out they should give you an idea what I usually cover in Sixty Seconds. Reference: Pinal Dave (https://blog.sqlauthority.com)Filed under: PostADay, SQL, SQL Authority, SQL in Sixty Seconds, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Video

  Read the article

< Previous Page | 429 430 431 432 433 434 435 436 437 438 439 440  | Next Page >