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  • Limit disk I/O one program creates?

    - by Posipiet
    Hardware: one virtualization server. Dual Nehalem, 24GB RAM, 2 TB mirrored HD. Software: Debian, KVM, virt-manager on the server with several virtual machines that use Linux too. 2 TB Disk is a big LVM, each VM gets a logical volume and makes its own partitions in that. Problem: One of the programs that runs on one of the VMs creates huge disk load. This never was an issue, because the program never ran on such a powerful hardware. Now the CPUs are fast, and lots of I/O is the result. We cant do much against that at the moment, because the tool is a black box. On the other hand, the speedy computation is welcome. The program creates about 5 GB of temp files which get overwritten during the next iteration. Question: How can we limit the disk I/O for the process?

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  • How to install java-1.7.0-openjdk-devel on RHEL Server 6.3?

    - by andand
    I have need of installing a Java 7 development environment on a RHEL 6.3 (system details are below). Following the official OpenJDK directions I tried yum install java-1.7.0-openjdk-devel (as root). This yields the error message: No package java-1.7.0-openjdk-devel available. The Java6 JDK java-1.6.0-openjdk-devel and the Java7 JRE java-1.7.0-openjdk are both available, but the Java7 JDK does not appear. Is there a non-default repository from which I can install this? If so what is it? Distribution: Red Hat Enterprise Linux Server release 6.3 (Santiago) Kernel: 2.6.32-279.5.2.el6.x86_64

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  • How to find out if the screen is WLED or RGBLED on Dell Studio XPS 16?

    - by Abhijeet
    I just ordered the Dell Studio XPS 16 with i7 and 16" RGBLED screen. This upgrade from WLED LCD to RGBLED LCD charged me more $$. But now when I view the order online, it lists this part as "320-8335 Premium FHD WLED Display, Obsidian Black, 2.0 MP Webcam". When called Dell, the rep says this part is RGBLED screen and the "premium" is for RGBLED. I want to make sure they are shipping me the RGBLED screen and not the WLED. Is there any way to verify this after I receive (either from Device Manager or BIOS or somewhere in system settings)? Also, is there any published specifications / criteria that we can run (some third party software) on this monitor which can tell if this is WLED or RGBLED?

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  • HAProxy and 2 webservers

    - by enrico
    I have a website that is split into two different servers: chat server in node.js normal website (lighttpd + php + whatever) now, I have set HAProxy in the same machine as node.js chat, so that when my website is accessed, it will redirect to the chat login. (Eg: mysite.com/messenger) What I want to do now is to put a link on the chat page to send to the other part of the website which has a normal files tree, like home.php, photos.php, settings.php, etc. but I really have no clue how this whole redirection works. Also, what about URL rewriting? If I have like info.php?item=phone and want to change it to mysite.com/phone ... is this something I should do with HAProxy or with lighttpd? Thanks in advance.

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  • Windows program to remove titlebar, frame, etc from a window?

    - by Nelson
    I like playing computer games in windowed mode, as opposed to full screen. I don't like staring at the title bar, frame, and other UI junk. I also don't like seeing other stuff on my desktop around the window. Is there a simple Windows program that will strip the UI chrome off of an arbitrary window from some other application? Extra points for an easy way to put a black screen underneath the window, hiding the desktop. Note: I'm looking specifically to handle windows that are smaller than my desktop size. There's a variety of 'windowed maximized' options that make a window exactly the desktop size, and positioned so all the UI decorations are off screen. (E.g.: ShiftWindow). I'm trying to strip all the decorations away from a window that's smaller than desktop size.

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  • Can I build or test a computer without a case?

    - by jasondavis
    I am in the process of building a really nice new PC right now. It's going to have a nice Lian Li case with the internals powder coated black and all the wires will be sleeved. So my problem is I am getting parts in a couple days but my case will not be completed for about a month because it is on back order plus time to powder coat it. I am purchasing many of m y parts from newegg.com and they claim you must return any dead parts within 30 days or the invoice for there warranty to replace bad parts. So is it possible for me to set up the PC without a case just to test that the main parts are working correctly within the timeframe I am allowed? If this is possible, how do I deal with turning the system on/off without a powere button? Or is therer one on a motherboard? Thanks for any tips/advice

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  • Checkinstall failed with /root/rpmbuild has no source directory

    - by leo
    I am trying to use checkinstall to build a package from source code. However, when i run checkinstall , it ask : /root/rpmbuild has no source directory, please write the path to the rpm source directory tree. i am running on fedora 12 and system was installed through kickstart via repository of dvd of fc12. I was not aware of the rpm source directory during the installation. so how can i check whether rpm source has been installed or not. if not, how to make the rpm source directory so that i can please the checkinstall and build the package successfully. or can i bypass it? thanks a lot

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  • Juniper J4350 out of order

    - by Benjamin Baron
    I have got two (2) Juniper routers J4350 that are out of order : All the interfaces are down (leds on the interfaces don't ligthen, ping dosen't respond) No output on the console port (even when booting) I've tried to reset the router (holding the RESET CONFIG button on the front panel during 15 seconds) and nothing happened, even while booting the device I've opened the router to check the fans. I've removed some dust and nothing has changed. I wanted to precise that the leds on the front panel are all on: The POWER led is green The STATUS led is red The ALARM led is on and is orange The HA (High Availablity) is on and orange as well I have found nothing on the Internet to solve this problem... Thank you for helping me :)

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  • permission denied when trying to execute a binary I burned to a CD-R

    - by user16654
    On a UBUNTU karmic machine, I burned a cd from the command prompt using: cdrecord -v speed=16 dev=0,1,0 /FPS.iso The CD now contains an executable and some files. I tested the cd by loading it onto another machine (Red Hat 5.3) and when I try to run the program I get the following message: bash: ./FPS1_1: Permission denied I can open other files like text documents (the executable also comes with shared libraries). I realized I had burned the cd as root so I burned another one as another user but I still got the same problem. How can I remove this permission or what is the problem? P.S. the image was in / if that helps

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  • Sendmail relay out of Amazon EC2?

    - by Stephen Belanger
    I have a site running on CentOS 5.4 through Amazon EC2. Unfortunately, Amazon has had nothing but trouble with their entire IP range getting black listed from spam tracking services regularly. I need a mail server, so I setup an smtp server elsewhere that I want to send to, but I can't just send directly to it through PHP because the direct smtp request is way too slow. What I want to do is relay through sendmail, but I've never used sendmail before, so I have no idea how to configure it. All I want is for all emails sent from localhost to be relayed to one specific external server, but I don't know how to do that. I tried to find a tutorial online, but couldn't find anything that was particularly clear as to how I go about doing that. Can anyone help me out?

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  • Date header returned by IIS7 is wrong

    - by James Hollingworth
    I am serving an ASP.NET application from IIS 7 but we are experiencing some weird cookie issues. The code works fine in other environments so we are assuming this is specific to this server (related question). We have been looking at the http headers returned and someone pointed out that the date http header is showing the 1st of Jan rather than today's date (so far it always shows that date regardless of what the current date is). The system clock is set correctly (and we can print out the current time/date via DateTime.Now correctly as well) so we can't work out why it's now working. Does anyone have any ideas? Is this a red-herring? Thanks, James

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  • VMware ESXi 4 On-Disk Data Deduplication - possible and supported?

    - by hurikhan77
    Environment: We are running multiple web, database, and application servers which usually share a pretty common installation (gentoo linux) and similar configuration in VMware ESXi 4. The differences are usually only some installed features or differing component versions. To create a new server, I usually choose the most similar (by features) running server, rsync a copy of it into freshly mounted filesystems, run grub, reconfigure and reboot. Problem: Over time this duplicates many on-disk data blocks which probably sums up to several 10's of gigabytes. I suppose if I could use a base system as template with the actual machines based on top of that, only writing changed blocks to some sort of "diff image", performance should improve (increased cache hit rate) and storage efficiency should increase (deduplicated storage space). This would be similar to what ESXi already supports for RAM deduplication (page sharing). Question: Is there any way to easily do this on ESXi 4? I already share the portage tree via NFS but this would not work for the rootfs.

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  • "No such file or directory" when the file is there

    - by Arlaud Agbe Pierre
    I'm trying to run XPDF on a linux (probably red hat) OVH shared server. I've managed to have ftp ssh access and put the 64 bits binaries onto a folder. The problem is : even though the files are there with the right permissions, if I try running it I'm getting a file not found problem (I'm thinking about a missing link..) Long story short : jurisedi@ssh1:~/xpdf$ file pdftotext pdftotext: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), stripped jurisedi@ssh1:~/xpdf$ ./pdftotext -ovh: jurisedi@ssh1:~/xpdf$: No such file or directory Any ideas ?

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  • Sound problems in Windows 7

    - by Plastkort
    hi! I hope I reached the correct forum for this question. I have a media computer with a third party audio card (Soundblaster audigy SE) I use a coaxial digital audio cable connected to a Onkyo TX SR508. if I use normal audio, the sound seems very low, I have to set volume atleast to 62 in my amplifier to hear anything, however if I set digital SPDIF I have no means of controlling the audio volume from the PC (only from the amplifier) and this can be nasty if I toggle between movies that uses Digital AC3/THX and movies wihtouth, if I look at movies capable of AC3 the volume gets VERY loud if amp is set to 62, 32 is more than enough volume when using passthrough. so this bothers me is how can I get the same amount of volume with or without digital output? I tried also other soundcards, internal red light Digital audio cable... if I connect to my television I get ok sound on any sound source via HDMI... help :)

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  • How do I resolve the error "The file exists" when restoring a cube backup?

    - by Ant
    I'm trying to restore a cube backup (a .abf file) using SQL Server Management Studio, but I'm getting the error message: The following system error occurred: The file exists. . (Microsoft SQL Server 2005 Analysis Services) (yes, there really are two dots) Does anyone know how to resolve this so I can restore the backup? Here are the steps I'm using: Open Microsoft SQL Server Management Studio Make the connection to the AS server Right-click on the Databases node on the server tree view Choose Restore... Type in a new database name in Restore database Select the backup file in From backup file Enter the correct password Optionally tick Allow database overwrite (it happens both ways) Press OK -- get the above error message

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  • Does Windows 7 support multiple simultaneous nVidia graphics cards with different drivers?

    - by mckenzieg1
    On one of my dev machines at work (currently running XP), I have two nVidia graphics cards: Quadro NVS 440 (my original card, for my three primary monitors) GeForce GTX 275 (just added, for CUDA development) I can get both cards to work OK by installing the latest GeForce drivers, but I get some annoying-but-not-crippling display artifacts on the Quadro's screens (mostly scattered black rectanges where repainting fails for a few bits of UI in certain applications). Under XP, this seems to be the best I can do. I can use Device Manager to supposedly install different nVidia drivers for the two cards (the latest Quadro drivers for the NVS, the latest GeForce drivers for the GTX), but I actually end up with the same driver for both, because the driver dlls all have the same names and get installed on top of one another in the system directory. I have read that Win7 has a new video driver architecture that better supports multiple heterogeneous cards. Does anyone know if that will handle my scenario? If so, it will give me a compelling reason to get that machine on Win7 ASAP.

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  • How come my form input sometimes moves when I refresh the page?

    - by samoz
    On a page that I'm designing I have a form with one input of type text. Normally, this form and input render properly in my browser, Chrome, but occasionally, it renders about 20 pixels to the left of where it is supposed to be. When I refresh the page, it goes back to the original, correct place. I have only tested in Chrome so far, so this isn't a cross-browser issue (it happens in the same browser). Is there anything wrong with my code below? Here's my HTML code: <!DOCTYPE htmls> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <link rel="stylesheet" href="style.css" type="text/css" /> <title>Test Site</title> </head> <body > <div id="supercontainer" class="style1"> <img class="floater" src="top.jpg" alt="Top" /> <img class="floater" src="left.jpg" alt="Left" /> <div id="content"> <p id="theText"> Welcome. Please type a username. </p> <form id="prompt"> <div><input type="text" name="promptLine" autocomplete="off" id="promptLine" onkeypress="return submitenter(event);" value="% " /></div> </form> </div> <img class="floater" src="right.jpg" alt="Right" /> <img class="floater" src="bottom.jpg" alt="Bottom" /> </div> Here's my CSS code: #supercontainer { margin: 0 auto; width: 900px; display: block; } img.floater { display: inline; float: left; } #content { background-color:black; display: inline; float: left; padding-left:5px; padding-right:5px; min-height:458px; max-height:458px; min-width: 803px; max-width: 803px; color: lime; } #theText { text-align:left; margin-bottom:0; margin-top:0; line-height: 0.3; font-family:"Courier New", Courier, monospace; } #prompt { position: fixed; top: 470px; } #promptLine { width: 100%; background-color: black; color: lime; border: none; outline:none; }

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  • background image disappears when position relative used in firefox

    - by toomanyairmiles
    So I'm trying to add a badge to the top right corner of a site I'm doing some work on. z-index works to float the object above the page content but each time i try to use position relative the background image disappears only position absolute shows the image. I don't really want to use absolute as the image needs to be positioned on the right hand side of the sites menu bar not the right hand side of the viewport. Any thoughts or advice appreciated <div class="badge-box"> <a href="http://www.google.com" class="badge">Book Now!</a> </div> <div id="header"> <a href="index.php"><img src="images/pixel.gif" width="378" height="31" alt="Welcome to Gwynfryn Farm Cottages" /></a> </div> <div id="main-menu"> <div> <a href="/">Home</a> <a href="/cottages.php">Our Cottages</a> <a href="/gwynfryn.php">Bed &amp; Breakfast</a> <a href="/rates.php">Price Guide</a> <a href="/llanbedr.php">Location &amp; Local Attractions</a> <a href="/news.php">News &amp; Special Offers</a> <a href="/contact.php">Contact Us</a> </div> </div> .badge-box { width: 1030px; margin-left: auto; margin-right: auto; border: 0px solid red; } .badge { background: url(../images/badge.png) 0px 0px no-repeat; width: 148px; height: 148px; text-indent: -10000px; position: relative; z-index: 999; } #header { width: 960px; height: 40px; margin-left:auto; margin-right:auto; margin-top:20px; padding: 20px 0px 0px 20px; background: #58564f url(../images/header-top-background.png); } #main-menu { width: 980px; margin-left: auto; margin-right: auto; height: 35px; /*background: red;*/ background: #58564f url(../images/header-bottom-background.png); font-family: Georgia, "Times New Roman", Times, serif; } #main-menu div { width: 776px; height: 35px; margin-left: auto; margin-right: auto; background: blue; } #main-menu div a { display: block; float: left; padding: 5px 10px 0px 10px; height: 30px; color: #FFFFFF; font-size: 1.2em; text-align: center; background: green; } #main-menu div a:hover { background-color: #333333; }

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  • Ganglia divide colors by rolles

    - by com
    Sorry for a silly question I am still newbie to Ganglia. In Ganglia I control few important metrics for mysql (seconds behind master and etc.). In addition I have few bunches of mysql servers (every bunch has it's own tasks, but all of the bunches should be tested for seconds behind master). I am interested if this possible to show all metrics on the one page with different colors to different bunches. Right now in metric "seconds behind master" I see all mysql servers with metric "seconds behind master" with colors to different states (red is critical, gray is ok). Can I set a color to a graph according to it's bunch? Thanks!

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  • How to integrate monit into web app deployment process

    - by shabunc
    I have: Tomcat with webapp deployed via mvn tomcat:redeploy. Monit, pinging the host and restarting server if ping failed. The thing is there in a moment during the redeployment when ping will fail - and this is normal, actually. So, the question is - what is the best way to teach monit to consider the fact of redeployment and not to confuse it with "real" black outs. This is of course an issue of balance between elegance, ease of implementation and scalability. The most straightforward solution I can think of - is just to shutdown monit before deployment and start it up after once again. But this if far from elegance I guess.

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  • Installing 2 DDR3 Sticks in MB with 4 Slots

    - by The Sasquatch
    Hey everyone, I just put together my first system that uses DDR3 memory. The motherboard I got is an ASUS M4A77T/USB3 and it has 4 DDR3 RAM slots. Looking in the manual for the MB it doesn't say anything about how to install the RAM as far as matching the pairs goes. I have 2 4GB sticks of RAM, and whether I put the sticks next to each other (of the 4 RAM slots, there are two blue ones next to each other and 2 black ones next to each other) or space them apart, The BIOS still shows that I have 8GB installed. I have been getting an IRQL_NOT_LESS_OR_EQUAL BSOD error, and have read in some other places that it could be hardware/RAM related. Does the RAM need to go in the A1, A2 slots (different colored but both A), or the A1 B1 slots? (A1 B1 are both the lovely blue color.) Any help would be awesome. THANKS!

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  • Changing ati graphics setting into a batch file

    - by FrozenKing
    I want to change my saturation level to zero and again to default but I can do it manually by going to ati catalyst center. Since, I want to do it regularly I need some batch file code or program to alter this settings in a click or using shortcut keys. The reason I am doing this because I want to change my screen to black and white from color since b/w will make my eyes less tired then a colored display. I came to know about this saturation from my previously asked question : Changing display color from B/W to color (vice-versa)using a program.

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  • SVN - Migrate to new server

    - by Jeff Bilbro
    We recently acquired another company that brought with them some crufty old linux servers. One of them is their SVN server - which died last night. I don't know a lot about Subversion, but I have reading up on it this morning - as you can imagine. We do have backups, but their just the whole directory tree for the subversion, not individual dumps. Since the server is now dead, I cannot do any dumps. How do I migrate that Subversion directory to a new server and get it up and running again? I'm not seeing a lot of examples. The new server is a VM running RHEL5. Thanks, Jeff

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  • Laptop overheating within minutes of start up

    - by Spik330
    I have a Dell Windows 7 Home Prem with an I7-720QM. More information on the computer can be found here http://www.dell.com/support/home/us/en/04/product-support/servicetag/51CVCN1/configuration The Problem I am having is the computer will over heat unnaturally fast. From the time it takes from boot to when i can run my diagnostic tools which takes about two minutes the cpu temp is 86c after a few more minutes the cpu temp will reach 100 and the computer will black screen shut down. In total the the laptop can only be run for 3-5 minutes before completely shutting off. During this time there is nothing extensive running. After the laptop shuts down you have to wait for it to cool down or it will shut off even faster sometimes 7-15 seconds well still in the boot screen. Does anyone know what could be the problem maybe a sensor or is the computer fried?

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  • client subscribed to a multicast group not receiving data

    - by Abruzzo Forte e Gentile
    I have a network that was setup for multicast traffic IN Machine A there is a server application generating multi-cast traffic. I have also different clients subscribing to that mulicast traffic -some client are in the same machine A -other clients are in machine B,C,D # Address I am using IP : 239.193.0.21 PORT: 20401 I don't know why but the client in machine A , even if they join the group, don't receive any data while (and this is the funny part) machine B,C and D receive everything. Checking with Wirshark I can see that the UDP traffic flow is there in Machine A. I am using LInux/Red-Hat Enterprise 6.2 What should I look at? Any setting in the os? Firewall or what?

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