Search Results

Search found 23576 results on 944 pages for 'case study'.

Page 433/944 | < Previous Page | 429 430 431 432 433 434 435 436 437 438 439 440  | Next Page >

• Disable disk caches in AWS EBS for PostgreSQL?

  - by Alexandr Kurilin

  It's my understanding that, without correctly disabling OS-level and drive-level caching, there is a chance that in case of system failure the Write-Ahead Log might not be saved correctly and in fact might get corrupted, possibly preventing data recovery. I've already made sure that wal_sync_method=fdatasync however I was unable to make any configuration changes with hdparm since I get the following: $ sudo htparm -I /dev/xvdf /dev/xvdf: HDIO_DRIVE_CMD(identify) failed: Invalid argument Looks like that option is not available in the kind of setup you get in EC2. Am I missing anything here? Are there any other obvious caches I have to disable to ensure the WAL's safety?

  Read the article

• PC will be turned off in safe mode

  - by abbasi

  I wanted to scan a Dell inspiron N5010 laptop in safe mode. When I took it to the safe mode environment and ran the AV to scan, after some while the PC went out! The power options menu options (when plug is in) are as follows: Screensaver after 4 mins. Dim to display after 10 mins. Turn off display after 15 mins. Hard disk, sleep and hibernate are all off (set to never). I tested the machine without scanning it, i.e, went to the safe mode and waited to see what occurs after time elapsing. By observations so far (because I can apply more tests to determine that where the problem exactly is), the problem is when the machine is in safe mode and is doing something (in current case, scanning). What do you think? Why it goes out in this situation please? Thanks in advance.

  Read the article

• Portal And Content – Introduction (1 of 7)

  - by Stefan Krantz

  The coming post over the next two months will be included in a new series. The idea is to help the reader to understand how to enable a versatile and manageable portal. Each post will go through a specific use case or lifecycle group of events that a Content Driven Portal requires the development team to consider. The current planning is to deliver following subjects, each topic will be enclosed in a separate blog post. Introduction – Introduction to the series of posts and what to expect at the end of the series Components, part 1 – UCM, Site Studio and high level introduction to content templates Components, part 2 – Page Templates and  Navigation model Components, part 3 – Applied Customization Framework for Content Presenter Taskflows Scenario 1 – Enable a Portal for runtime administration Scenario 2 – Enable a Portal for Internationalization Scenario 3 – Enable a Portal for Content Workflows Background This post series has been issued to help customers, partners and consultants to understand the concept of a WebCenter Portal project where the main focus or a majority of the portal has content interaction. Today the most portal installations Oracle WebCenter Portal is involved in have a vast majority of content based pages. Many of the Portal projects have or will run into challenges, to mitigate these challenges the portal and content lifecycle has to be well designed. The coming posts will address the main components that should be involved when creating such scenarios; it will also go into details on the process by describing three solution scenarios. The aim with the scenarios is to give the reader a more hands on understanding of the concept of building and architecting a Content Driven Portal. The selected scenarios are selected based on the most common use cases that we have identified until today.

  Read the article

• New MySQL Enterprise Edition Demo

  - by Bertrand Matthelié

  @font-face { font-family: "Arial"; }@font-face { font-family: "Cambria"; }p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: "Times New Roman"; }div.Section1 { page: Section1; } In case you haven’t seen it yet, we released last week a new MySQL Enterprise Edition Flash Demo. @font-face { font-family: "Arial"; }@font-face { font-family: "Cambria"; }p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: "Times New Roman"; }a:link, span.MsoHyperlink { color: blue; text-decoration: underline; }a:visited, span.MsoHyperlinkFollowed { color: purple; text-decoration: underline; }div.Section1 { page: Section1; } This demo helps you understand in only 3 minutes how Oracle’s MySQL Enterprise Edition reduces the risk, cost and time required in developing, deploying and managing business-critical MySQL applications. You can watch it here. After watching the demo, you can easily go ahead and try MySQL Enterprise Edition, and/or get more detailed information in our whitepaper. @font-face { font-family: "Arial"; }@font-face { font-family: "Cambria"; }p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: "Times New Roman"; }a:link, span.MsoHyperlink { color: blue; text-decoration: underline; }a:visited, span.MsoHyperlinkFollowed { color: purple; text-decoration: underline; }div.Section1 { page: Section1; } Enjoy the demo!

  Read the article

• Create MSDB Folders Through Code

  You can create package folders through SSMS, but you may also wish to do this as part of a deployment process or installation. In this case you will want programmatic method for managing folders, so how can this be done? The short answer is, go and look at the table msdb.dbo. sysdtspackagefolders90. This where folder information is stored, using a simple parent and child hierarchy format. To add new folder directly we just insert into the table - INSERT INTO dbo.sysdtspackagefolders90 ( folderid ,parentfolderid ,foldername) VALUES ( NEWID() -- New GUID for our new folder ,<<Parent Folder GUID>> -- Lookup the parent folder GUID if a child or another folder, or use the root GUID 00000000-0000-0000-0000-000000000000 ,<<Folder Name>>) -- New folder name There are also some stored procedures - sp_dts_addfolder sp_dts_deletefolder sp_dts_getfolder sp_dts_listfolders sp_dts_renamefolder To add a new folder to the root we could call the sp_dts_addfolder to stored procedure - EXEC msdb.dbo.sp_dts_addfolder @parentfolderid = '00000000-0000-0000-0000-000000000000' -- Root GUID ,@name = 'New Folder Name The stored procedures wrap very simple SQL statements, but provide a level of security, as they check the role membership of the user, and do not require permissions to perform direct table modifications.

  Read the article

• Backup and restore.

  - by Xavierjazz

  I have a Thinkpad T60 with a 150GIg internal hard drive. XP Pro SP3. I also have a similar hard drive that used to be in another laptop connected via USB. It contains only data. I have cleared out a lot of duplicate files and now would like to back both up. I have Retrospect and a brand new 1Tbyte drive for this purpose. Can I back up the whole computer (both drives) but, in case only one fails, can I just restore that drive or do I have to restore both drives at the same time? I don't understand how partitions work so might I be able to partition the 1T drive and restore each smaller drive independently? Thanks.

  Read the article

• Bounding volume hierarchy - linked nodes (linear model)

  - by teodron

  The scenario A chain of points: (Pi)i=0,N where Pi is linked to its direct neighbours (Pi-1 and Pi+1). The goal: perform efficient collision detection between any two, non-adjacent links: (PiPi+1) vs. (PjPj+1). The question: it's highly recommended in all works treating this subject of collision detection to use a broad phase and to implement it via a bounding volume hierarchy. For a chain made out of Pi nodes, it can look like this: I imagine the big blue sphere to contain all links, the green half of them, the reds a quarter and so on (the picture is not accurate, but it's there to help understand the question). What I do not understand is: How can such a hierarchy speed up computations between segments collision pairs if one has to update it for a deformable linear object such as a chain/wire/etc. each frame? More clearly, what is the actual principle of collision detection broad phases in this particular case/ how can it work when the actual computation of bounding spheres is in itself a time consuming task and has to be done (since the geometry changes) in each frame update? I think I am missing a key point - if we look at the picture where the chain is in a spiral pose, we see that most spheres are already contained within half of others or do intersect them.. it's odd if this is the way it should work.

  Read the article

• Have both domain and non-domain users use NetApp CIFS storage

  - by zladuric

  My specific use case is that I have a NetApp CIFS storage that's in the domain, say, intranet. But I also have one hyper-v host that's not in the domain. I can't allow it into the domain, but I need to create guests whose VHD is on the storage. How can I achieve this? When I simply connect to a CIFS share and create a VHD there, it works, but when I try to add that VHD to the virtual machine, I get a "Failed to set folder permissions" error - probably due to folder ownership being in the domain admin. Is there a way around this? So both domain and non-domain users use the same directory?

  Read the article

• MySQL - Configuration

  - by Stuart Brierley

  Having previously detailed how to install MySQL Server, the next step is configuring MySQL. The MySQL configuration wizard can either be run immediately following installation from the MySQL installation wizard or manually from the Start Menu. Following the splash screen you can then choose whether to run a detailed or standard configuration. The detailed configuration allows you to create the optimal configuration for your specific machine, whereas the standard configuration creates a general configuration that can then be manually tuned. I chose detailed.   You are then asked to choose the type of server instance that is being configured. In this case it is a developer machine. Following this you are asked to choose the type of database usage that you expect on the server. I opted for multifunctional. You must then specify the location of the InnoDB tablespace.   Next specify the number of concurent connections to the server.   Now you must configure the networking options. I left the Strict mode enabled as this is the recommended option, but I disabled TCP/IP networking as I wanted to restrict this MySQL installation to the local machine only.   Set the character set that is best suited to your use - for me this was the default standard character set. Next up is the option to run MySQL as a service and whether or not to include the mysql dircetories in the windows PATH. I kept the install as a windows service option enabled, but unchecked the Launch MySQL server automatically option. This is because I only wanted MySQL running when I specifically want to use it. I also enabled the include in windows PATH option.   You can then change the security settings for the mysql installation. I opted to change the root password, disable root from local machines and disable annoymous access.   You are now ready to execute the configuration.   Once completed you should hopefully see the completed screen with lots of nice ticks against the various configuration tasks.

  Read the article

• Use mod_rewrite or RedirectMatch to redirect oldfile.aspx?p=blah to newfile.php, ignoring ?p=blah

  - by Dan

  I've got a site with many incoming links to the old structure (gone for years), with tonnes of URL vars that are no longer relevant, as the database mappings were changed. So, I'd like to redirect: http://www.mysite.com/oldfile.aspx?p=1&c=2 to: http://www.mysite.com/newfile.php without the query string at the end. The actual query string varies - there are hundreds of them, but since they don't match up to a particular case anymore, I want to take people to the new index page for the content they're looking for, so they can find it from there. I currently use: RedirectMatch 301 ^/oldfile\.aspx$ /newfile.php This puts the query back on the end though. Can someone let me know the voodoo recipe I need?

  Read the article

• iOS chat application design, sending/relaying the message over to the end user

  - by AyBayBay

  I have a design question. Let us say you were tasked with building a chat application, specifically for iOS (iOS Chat Application). For simplicity let us say you can only chat with one person at a time (no group chat functionality). How then can you achieve sending a message directly to an end user from phone A to phone B? Obviously there is a web service layer with some API calls. One of the API calls available will be startChat(). After starting a chat, when you send a message, you make another async call, let us call it sendMessage() and pass in a string with your message. Once it goes to the web service layer, the message gets stored in a database. Here is where I am currently stuck. After the message gets sent to the web service layer, how do we then achieve sending/relaying the message over to the end user? Should the web server send out a message to the end user and notify them, or should each client call a receiveMessage() method periodically, and if the server side has some info for them it can then respond with that info? Finally, how can we handle the case in which the user you are trying to send a message to is offline? How can we make sure the end user gets the packet when he moves back to an area with signal?

  Read the article

• iSCSI: LUNs per target?

  - by badnews

  My question relates specifically to ZFS/COMSTAR but I assume is generally applicable to any iSCSI system: Should one prefer to create a target for every LUN that you want to expose? Or is it good practise to have a single target with multiple LUNs? Does either approach have a performance impact? And is there some crossover point where the other approach makes sense? The use case is for VM disks, where each disk (zvol) is a LUN. So far we have created a a separate target for each VM; but a single target that contains all the LUNs would probably greatly simplify management... but we may need hundreds of LUNs per a single target. (And then possibly tens of initiator connections to that target)

  Read the article

• I've created a software RAID on SUSE EL 10 and now I need to monitor it.......

  - by Thomas B.

  I have created a Software Raid using the yast2 GUI on SUSE ES 10/11. The raid works great and it's a raid 5. I have 5 Drives they are cheap 2GB Cases that have 2 - 1TB Drives in each case (Serial ATA Drives) and I connect them in via Esata to the motherboard. The problem I have as this is "cheap" storage when of the the 5 drives goes out on the RAID I seem to have no logs of any issues and it get's harder and harder to write to it until it dies. I use SAMBA to mount the 4TB parition to my PC's in my home on a GIG network. My question is this, are there any good (Free) tools in Linux to monitor a raid or the drives on the raid to detect any problems??? I haven't found any yet and was just wondering if some exist.

  Read the article

• Can a 32-bit RHEL4 userland work with a 64-bit kernel?

  - by James

  Is there a way to change an i386 RHEL4 machine to run an amd64 kernel, but ensure that it still builds software into same i386 binaries? On Debian this seems quite straightforward: just install an amd64 kernel (worst case, build one like this guy: http://www.debian-administration.org/users/jonesy/weblog/1) and prefix everything with "linux32". Then everything that considers uname -m will be unchanged, I just need to handle the few cases that consider uname -r. What is the Red Hat equivalent? Is the only way a full 64-bit installation on another disk and then chrooting back to the 32-bit system before anyone builds anything? (Even the best examples of that seem to be Debian-based.) Background: We make a large system that runs on (a variant of) i386 RHEL4. However, some of the larger RHEL build machines now have enough RAM that they might benefit from going 64-bit (for the kernel and maybe some of the bigger build steps). Our build system doesn't support cross-compilation.

  Read the article

• Recover a deleted webpage

  - by rc

  Suppose, a blog or a nice article was hosted on a website and it got deleted or worse the website was brought down. How do you view that web page? I tried searching for the cached version in Google. But, looks like the content was deleted long ago and is not listed in the search results directly. There are annotations to the link from many other sites, but still the actual content is not fully available. Now, can anybody help me see this page... I am actually looking for http://effectize.com/become-coolest-programmer :) And, moreover, in addition to bookmarking a favorite link, is it possible to cache the content of the link as well for later reference in case it gets deleted? EDIT: Looks like a URL can be cached for future reference. Try: http://backupurl.com/

  Read the article

• How can I preview various Google services in Firefox?

  - by Travis Christian

  With iGoogle shut down I haven't been able to replicate my homepage through other services. I'm not asking for a generic replacement for iGoogle, but how to accomplish a specific use case whether through a third-party dashboard, browser extension, or some DIY solution. I need an interactive Gmail inbox, Gmail Tasks, and Google Calendar in the same Firefox tab. If hosted by a third party, they need to authenticate safely using the Google account that I am logged in with. Other widgets would be useful but I only require those Google services. I'm using Gmail itself for now but there is hardly room for the other widgets in the sidebar. Both Google Sites and igHome won't reliably load the services, especially Tasks. Netvibes requires raw login information for third-party services.

  Read the article

• Can I list file names (or their parent directories) that were recently deleted using rm in OS X?

  - by Andrew Grimm

  Is it possible to find out which files and directories have recently been deleted by rm in OS X? Or failing that, is it possible to find which parent directories have had files or directories within it deleted? The OS version is Snow Leopard. Background: Last night, rvm (ruby version manager) did rm -rf of the ~/ruby directory from the home directory. (This bug has since been fixed) Ideally, I'd like to know what files within the ~/ruby directory were deleted, but failing that, I'd like to know if rvm deleted anything outside of ~/ruby . In case anyone's wondering about backups...: Just about everything within ~/ruby is a git project that has a remote repo, and I have a fairly recent Time Machine backup (only 20 days old).

  Read the article

• Start tomcat webapp with root privileges

  - by Hagay Myr

  I built a webapp that uses libpcap (via jpcap). In order to be able to get the network interfaces list or to bind to a network interface, the application (in this case a webaap that runs from tomcat server) must be running with root privileges. During development I simply ran Eclipse with root privileges (sudo eclipse) and my webapp worked just fine with Eclipse's local tomcat server. However, when I try to deploy my webapp to the "real" tomcat server, it isn't working. I Also tried to start the tomcat6 service with sudo and changed the TOMCAT6_USER definition (defined in /etc/init.d/tomcat6) from "tomcat6" to "root" but it made no difference. What should I do to make it work?

  Read the article

• Best solution for getting referral information in PHP

  - by absentx

  I am currently redoing some link structuring on a website. In the past we have used specific php files on the last step to direct the user to the proper place. Example: www.mysite.com/action/go-to-blue.php or www.mysite.com/action/short/go-to-red.php www.mysite.com/action/tall/go-to-red.php We are now restructuring to eliminate the /short/ or /tall/ directory. What this means is now "go-to-blue.php" will be doing some extra processing to make sure it sends the visitor to the proper place. The static method of the past was quite effective, because, well, if they left from that page we knew we had it right. Now since we are 301 redirecting action/short/go-to-red.php to just action/go-to-red.php it is quite important on "go-to-red.php" that we realize a user may have been redirected from /short/ or /tall/. So right now I am using HTTP_REFERRER and of course in my testing that works fine, but after a lot of reading it is clear that this is not a solid solution, so I was starting to brainstorm on other ways to check and make sure we get the proper referral information. If we could check HTTP_REFERRER plus some other test, I would feel confident we have a pretty good system in place to send the visitor to the right place. Some questions/comments: Could I use a session variable or a cookie to accomplish this goal? If so, would that be maintained through the 301 redirect? I don't see why it wouldn't be.. Passing the url in the url is not an option in this case.

  Read the article

• How do I disable administrator prompt in Windows 8?

  - by Arnold Zokas

  I am using Windows 8 Enterprise on my development machine. Most of the time, I need full administrator for debugging, changing system files, etc. In Windows 7, setting UAC to "never notify" would disable any administrator prompts. In Windows 8 this is no longer the case. Even with UAC disabled I get prompted to grant programs elevated privileges. Is there a way disable this behaviour? Note: I am fully aware of the repercussions. I have antivirus, firewall, etc and am generally quite careful about what I download or install on my machine.

  Read the article

• terminal tools and logs for debugging TCP issues

  - by kellogs

  I have a server which I am testing for functionality (not load, not stress) with tsung. 50 users / second, 100 total users. Judging from tsung (tsung is the testing framework) graphs, there TCP connections (red line) drops to 0 while the commenced user sessions (green line) does not. Server logs show nothing to be gripping onto, so I am speculating some kind of TCP issue. Should this be the case ? Where would I look further on the server, any logs / tools to be looking at ? Only SSH available, no GUI. > root@XMPP:~# cat /etc/lsb-release > DISTRIB_ID=Ubuntu > DISTRIB_RELEASE=11.10 > DISTRIB_CODENAME=oneiric > DISTRIB_DESCRIPTION="Ubuntu 11.10" Thank you

  Read the article

• Dynamically setting a value in XAML page:

  - by kaleidoscope

  This is find that I came across while developing the Silverlight screen for MSFT BPO Invoice project. Consider an instance wherein I am calling a xaml page as a popup in my parent xaml. And suppose we wanted to dynamically set a textbox field in the parent page with the  values that we select from the popup xaml. I tried the following approaches to achieve the above scenario: 1. Creating an object of the parent page within the popup xaml and initializing its textbox field.         ParentPage p = new ParentPage();         ParentPage.txtCompCode.Text = selectedValue; 2. Using App app = (App)Application.Current and storing the selected value in app. 3. Using IsolatedStorage All the above approaches failed to produce the desired effect since in the first case I did not want the parent page to get initialized over and over again and furthermore in all the approaches the value was not spontaneously rendered on the parent page. After a couple of trials and errors I decided to tweak the g.cs file of the Parent xaml. *.g.cs files are autogenerated and their purpose is to wire xaml-element with the code-behind file. This file is responsible for having reference to xaml-elements with the x:Name-property in code-behind. So I changed the access modifier of supposed textbox fields to 'static' and then directly set the value in popup xaml page as so: ParentPage.txtCompCode.Text = selectedValue; This seemed to work perfectly. We can access any xaml's g.cs file by going to the definition of InitializeComponent() present in the constructor of the xaml. PS: I may have failed to explore other more efficient ways of getting this done. So if anybody does find a better alternative please feel free to get back to me. Tinu

  Read the article

• Ubuntu: Is there a good tabbed PDF viewer?

  - by Frank

  Is there a good non-bloated PDF viewer for (Ubuntu) Linux that supports tabs? I don't want to use Acrobat Reader because it is slow and takes much memory, and my computer isn't the fastest. I know the alternative readers evince and foxit, but they don't support opening different PDF files in tabs. (foxit has that feature on Windows, but the Linux version 1.1, which I just tried, doesn't have it.) For evince, I know many people would like this functionality, but they get ridiculed by Ubuntu people (see here), who say that tabs are the task of a window manager. If that is the case, how can I put all evince windows into one in GNOME?

  Read the article

• Ubuntu 13.10 AMD/ATI proprietary driver slow boot time, lengthy login/logout delays

  - by NahsiN

  Ubuntu 13.10 is causing me major headaches with my AMD/ATI HD 5770 GPU. Below is a list of problems I am currently encountering. 1) The boot time is extended by at least 25s after installing catalyst 13.4. Using open source radeon drivers, my boot time till the login screen is ~10s. With catalyst 13.4 installed, the boot time increases to ~35s. This was not the case in Ubuntu 13.04, 12.10 or 12.04. I have done the driver installation manually (instructions from wiki.cchtml.com) and using software center and there is no difference. I have not tried the catalyst 13.8 beta driver. 2) After manual installation of catalyst 13.4, I get stuck at a black screen after logging in. I have to purge fglrx to resolve the problem. I tried sudo amdconfig --initial -f but it didn't help. 3) The delay between logging in and unity being displayed is ~10-15s for BOTH open source and proprietary drivers. During the delay, it's just a black screen. Whenever I logout, there is again a ~10-15s delay with the login screen appearing stuck before lightdm allows me to enter my password again. This is ridiculous! Yes, I could stick with open source radeon drivers but I would like to install Steam and play my Valve collection on the machine. Is anybody else encountering similar issues?

  Read the article

• How can I debug VNC screen repainting issues?

  - by stevecoh1

  I have what some might consider a trivial use for VNC, but I'd like to get it to work and it's technically interesting to me. My use case is that I'd like sometimes to be able to control my desktop from my living room while watching tv. The desktop runs Ubuntu, currently 12.04, but that may change soon. I'm using the default Vino server. I'd like to control it from my IPad and I have a nicely performing WiFi. I got the well-regarded (if reviews can be believed) app Vnc Viewer for the iPad. It's not working as well as I'd hoped. The problem is the speed of repainting. It's abysmally slow. I can click a close button, walk over to the desktop and see that the window has closed, but on the iPad, the VNC Client won't show the close for minutes if ever. I've noticed that CLOSING windows takes a lot longer to update than to open them. So the question is is this primarily client or server-caused? And if server-caused what can be done about it? Is Vino the best client or is something else better? Thanks

  Read the article

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