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• How to install Ubuntu 13.10 on Hybrid Disk alongside Windows 8.1

  - by user205691

  I am having trouble installing Ubuntu 13.10 on HP Envy 4-1046tx ultrabook. When i bought this, it came with windows 7 pre-installed, but i upgraded it to 8 and now recently to 8.1. But somehow, i feel 8.1 is slower or something went wrong with the upgrade and made my system slow. I want to try Dual booting Ubuntu 13.10 with windows 8.1 The system recovery drive has windows 7 recovery files. SSD has 4GB allocated to windows 8 (i think for hibernation/rapid start). 25GB of SSD is free and i want to install ubuntu on this SSD pointing it to "/" I will also shrink the windows partition (the only other partition available apart from recovery & SSD) to free up 100GB and allocate this space to "/home" during ubuntu installation. I tried the above steps while on windows 8, but not successful. Ubuntu installation went fine, but the grub was not loaded. I tried to deploy linux via EasyBCD, but after that also, selecting linux in the boot would load grub on command prompt and do nothing. While ubuntu installation, i also deleted the raid drivers with sudo dmraid -rE, but still ubuntu didnt recognize my windows. I think i am missing some steps, so this time i want to do it right with proper info before starting the process. My requirements: dual boot Ubuntu with windows 8.1 c:\ shrinked windows with 300GB on sda1, 100GB for /home on sda1 & ubuntu installed on 25GB SSD volume sda2 (this is mSata i think) GRUB or EFI that helps me load both OS properly without breaking anything SWAP partition can be added if needed on sda1 (4gb?)? I have backed up my drive and have a 16GB usb3.0 with ubuntu loaded. I hope i have mentioned everything i need and know.. All i need now is some guidance and what to do right so that this installation goes as planned :)

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• can I force server to always use turboboost?

  - by javapowered

  I'm using HP DL360p Gen8 with 2 * Xeon E5-2640. I do not load CPU 100%, i load it only ~10% and so I guess turboboost is not activated. However I'm using my server for trading so I absolutely don't care about CPU loading but I always want to process my data asap. So I want server to operate using maximum 3 GHz. I.e. 90% of CPU time I don't have anything to process. 10% of CPU time I have data to process. But I need to process it ASAP. I need every single microsecond. So I want server to operate always at maximum "turboboosted" mode. Is it possible?

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• How do you create a bootable partition on a USB drive?

  - by Nathan DeWitt

  I have a bootable ISO designed to be burned to a double-layer DVD. I don't have a double layer DVD burner, so I would like to stick the ISO image on a 50 GB partition on a USB hard drive I have. How do I get the boot info onto the hard drive? If it helps, it's an OSx86 Live CD. Attempt 1: booted into Ubuntu 9.04 LiveCD deleted the partition on my existing USB hard drive sudo dd if=/path/to/image.iso of=/dev/MyUSB booted to USB drive error: Error Loading OS Atempt 2: booted into Ubuntu 9.04 LiveCD deleted the partition on my existing USB hard drive sudo mkdosfs -I -v -n iPC /dev/MyUSB sudo syslinux /dev/MyUSB sudo dd if=/path/to/image.iso of=/dev/MyUSB booted to USB drive error: Selected boot device not available - strike F1 to retry boot, F2 for setup utility

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• In Djano, why do I get a 500 server error when browsing, but "python mysite.fcgi" from SSH works fin

  - by Jim

  If I browse to my site, I get a 500 "internal server error." However, if I SSH into my server and go to my site's folder and run "python mysite.fcgi" I see the HTML rendered fine. Obviously, something is wrong, but I'm not sure what. Here is my .htaccess file: AddHandler fastcgi-script .fcgi RewriteEngine On RewriteRule ^(media/.*)$ - [L] RewriteRule ^(static/.*)$ - [L] RewriteCond %{REQUEST_FILENAME} !-f RewriteRule ^(.*)$ mysite.fcgi/$1 [QSA,L] Here is my mysite.fcgi file: #!/usr/bin/python2.5 import sys, os sys.path.insert(0, "/kunden/homepages/34/[mydir]/htdocs/projects/django") sys.path.insert(1, "/kunden/homepages/34/[mydir]/lib/python/site-packages") os.chdir("/kunden/homepages/34/[mydir]/htdocs/projects/django/mysite") os.environ['DJANGO_SETTINGS_MODULE'] = 'mysite.settings' from django.core.servers.fastcgi import runfastcgi runfastcgi(["method=threaded", "daemonize=false"]) I'm setting this up on 1and1. It has been a pain, but I think I'm close.

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• postfix header_checks

  - by Shalini Tripathi

  This is my mail log file on my local RHEL5 system:- From [email protected] Mon Jun 4 02:04:23 2012 Return-Path: [email protected] X-Original-To: c Delivered-To: [email protected] Received: by www.achal.com (Postfix, from userid 0) id 9C6C356014; Mon, 4 Jun 2012 02:04:23 -0700 (PDT) To: [email protected] Subject: d Message-Id: <[email protected]> Date: Mon, 4 Jun 2012 02:04:23 -0700 (PDT) From: [email protected] (achal) I want to change Return-Path: to [email protected], I have tried header_ checks in postfix but i am not able to get the proper format.Can anybody tell me how to do this.

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• How do I create an encrypted file system inside a file?

  - by darent

  Recently i've found this interesting tutorial: http://flossstuff.wordpress.com/2011/08/07/using-a-file-as-a-storage-device/ It explains how to create an empty file, format it as ext4, and mount it as a device. I'd like to know if it can be created as an encrypted ext4 file system. I've tried using palimpsest (the disk utility found in System menu) to format the already created file system but it doesn't works as it detects the file system being used. If I try to unmount the file system, it won't work neither because it doesn't detect the device (since it's not a real device like a hardrive or a usb drive). So my question is, is there an option to create the file system encrypted from the begining? I've used these commands: Create an empty file 200Mb size: dd if=/dev/zero of=/path/to/file bs=1M count=200 Make it ext4: mkfs -t ext4 file Mount it in a folder inside my home: sudo mount -o loop file /path/to/mount_point Is there any way the mkfs command creates the ext4 encrypted asking for a decryption password? I'm planing to use this as a way to encrypt files inside Dropbox. Thanks for your time.

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• Segmentation fault while switching QCompleter for QLineEdit [on hold]

  - by san

  I have a QLineEdit that uses autocompletion one which on focusIn event in which it shows paths from XML List(here I have used hardcoded list) but if user doesn't find the path from that list popped by QCompleter than I want user to be able to browse to path typing '/' in QLineEdit , I am not able to select the paths say /Users etc and on trying to type Segmentation fault occurs. from PyQt4.Qt import Qt, QObject,QLineEdit from PyQt4.QtCore import pyqtSlot,SIGNAL,SLOT from PyQt4 import QtGui, QtCore import sys class DirLineEdit(QLineEdit, QtCore.QObject): """docstring for DirLineEdit""" def __init__(self): super(DirLineEdit, self).__init__() self.defaultList = ['~/Development/python/searchMethod', '~/Development/Nuke_python', '~/Development/python/openexr', '~/Development/python/cpp2python'] self.textChanged.connect(self.__dirCompleter) def focusInEvent(self, event): if len(self.text()) == 0: self._pathsList() QtGui.QLineEdit.focusInEvent(self, event) self.completer().complete() def __dirCompleter(self): if len(self.text()) == 0: model = MyListModel(self.defaultList, self) completer = QtGui.QCompleter(model, self) completer.setModel(model) else: dirModel = QtGui.QFileSystemModel() dirModel.setRootPath(QtCore.QDir.currentPath()) dirModel.setFilter(QtCore.QDir.AllDirs | QtCore.QDir.NoDotAndDotDot | QtCore.QDir.Files) dirModel.setNameFilterDisables(0) completer = QtGui.QCompleter(dirModel, self) completer.setCaseSensitivity(QtCore.Qt.CaseInsensitive) completer.setModel(dirModel) self.setCompleter(completer) def _pathsList(self): completerList = QtCore.QStringList() for i in self.defaultList: completerList.append(QtCore.QString(i)) lineEditCompleter = QtGui.QCompleter(completerList) lineEditCompleter.setCompletionMode(QtGui.QCompleter.UnfilteredPopupCompletion) self.setCompleter(lineEditCompleter) class MyListModel(QtCore.QAbstractListModel): def __init__(self, datain, parent=None, *args): """ datain: a list where each item is a row """ QtCore.QAbstractTableModel.__init__(self, parent, *args) self.listdata = datain def rowCount(self, parent=QtCore.QModelIndex()): return len(self.listdata) def data(self, index, role): if index.isValid() and role == QtCore.Qt.DisplayRole: return QtCore.QVariant(self.listdata[index.row()]) else: return QtCore.QVariant() app = QtGui.QApplication(sys.argv) smObj = DirLineEdit() smObj.show() app.exec_() Please help fix this or suggest better way of implementation?

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• Using PowerShell, in Active Direcotry, how would I change all the DNS A records that have a given IP to a new IP?

  - by djsumdog

  We've been moving data centers and I have a lot of old records that were not correctly but in DNS as CNAME records, but A records that have a direct IP (e.g. 192.168.100.n) and they're all moving to a new subnet (10.19.100.n). I just need to write a powershell script to change all those records. I found this site: http://www.indented.co.uk/index.php/2008/12/30/administering-microsoft-dns-in-powershell/ and from it I made this simple script: $dnsServer = "meldc2" $scope = New-Object Management.ManagementScope("\\$dnsServer\root\MicrosoftDNS") $path = New-Object Management.ManagementPath("MicrosoftDNS_Zone") $options = New-Object Management.ObjectGetOptions($Null,[System.TimeSpan]::MaxValue, $True) $ZoneClass= New-Object Management.ManagementClass($scope,$path,$options) $Zones = Get-WMIObject -Computer $dnsServer -Namespace "root\MicrosoftDNS" -Class "MicrosoftDNS_Zone" $Zones | Get-Member foreach($Z in $Zones) { $Z | Select-Object Name,DsIntegrated,ZoneType,Reverse,Data } but that only gets me a listing of root zones. I don't understand how to iterate over all the entries in each of the zones. Also, all the examples I've seen involve adding new zones, but there aren't any examples I can find on modifying existing A records.

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• Apache ProxyPass ignore static files

  - by virtualeyes

  Having an issue with Apache front server connecting to a Jetty application server. I thought that ProxyPass ! in a location block was supposed to NOT pass on processing to the application server, but for some reason that is not happening in my case, Jetty shows a 404 on the missing statics (js, css, etc.) Here's my Apache (v 2.4, BTW) virtual host block: DocumentRoot /path/to/foo ServerName foo.com ServerAdmin [email protected] RewriteEngine On <Directory /path/to/foo> AllowOverride None Require all granted </Directory> ProxyRequests Off ProxyVia Off ProxyPreserveHost On <Proxy *> AddDefaultCharset off Order deny,allow Allow from all </Proxy> # don't pass through requests for statics (image,js,css, etc.) <Location /static/> ProxyPass ! </Location> <Location /> ProxyPass http://localhost:8081/ ProxyPassReverse http://localhost:8081/ SetEnv proxy-sendchunks 1 </Location>

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• Setting up dual monitors, Xorg.conf issues

  - by JTS

  I just got a new computer (W520, Graphics card nVidia GF106 [Quadro 2000]) and installed ubuntu on it using wubi. I have everything working, so I wanted to set it up to be able to use two monitors with an extended screen. I figured I had to edit Xorg.conf, but the file didnt exist. So I tried to create it by booting in recovery mode, and executing Xorg -configure but I am getting these errors: (EE) Failed to load module "vmwgfx" (module does not exist, 0) (EE) vmware: Please ignore the above warnings about not being able to load module/driver vmwgfx (++) Using config file: "/root/xorg.conf.new" (==) Using system config directory "/usr/share/X11/xorg.conf.d" (EE) [drm] No DRICreatedPCIBusID symbol Number of created screens does not match number of detected devices. Configuration failed. ddxSigGiveUp: Closing log Any idea how I can get Xorg -configure to work, so that I can have an xorg.conf file that I can edit to enable twinview? EDIT: Another way I could ask the same question to solve this problem is, why can't I boot with an xorg.conf file generated by nvidia-xconfig? Is there something in the generated xorg.conf file that might need editing?

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• qemu/virt-manager no permisson on shared folder

  - by TomAtToe

  I have a strange problem. Iam trying to create a shared folder via the add-hardware-filesystem option. For Type and Modus i choose Passtrought and for Driver Path. The Source Path is /free and target is mytag. I mount it with: mount -t 9p -o trans=virtio mytag /mnt/test -oversion=9p2000.L Everything worked without problems. But when i enter /mnt/test and do a ls, i get "ls: Öffnen von Verzeichnis . nicht möglich: Keine Berechtigung" in english something like "ls: cant open folder . no permission" I set permissions of /free to 777 recursivly but nothing changed. Also tried some other modes in virt-manager but nothing changes. Do you have any clues, what i am doing wrong? The guest-os ist Ubuntu 12.04 and the host-os is Ubuntu 11.10 Thank you for your help.

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• VMWare tools on Ubuntu Server 10.10 kernel source problem

  - by Hamid Elaosta

  After install and running the vm-ware config, the config needs my kernel headers to compile some modules, ok, so I'll give it them, but it just won't work. It asks for the path of the directory of C header files that match my running kernel. If I uname -r I get 2.6.35-22-generic-pae So I tell it the source path is /lib/modules/2.6.25-22-generic-pae/build/include and it returns "The directory of kernel headers (version @@VMWARE@@ UTS_RELEASE) does not match your running kernel (version 2.6.35-22-generic-pae). ..I'm confused? can anyone offer suggestions please? I installed hte kernel source andh eaders myself using sudo apt-get install linux-headers-$(uname -r)

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• X Session from Mac

  - by tekknolagi

  How can I log into an X server from Mac OS X? I know that ssh -X username@host will log me in and I will have the capability to run X applications. On Cygwin/X you can log in and have a whole X session from your computer... and it will look something like this: How can I replicate this? Using this batch script: @echo off SET DISPLAY=127.0.0.1:0.0 SET REMOTE_HOST=%1 IF "%REMOTE_HOST%" == "" SET REMOTE_HOST=10.0.0.1 SET CYGWIN_ROOT=\cygwin SET RUN=%CYGWIN_ROOT%\bin\run -p /usr/bin SET PATH=.;%CYGWIN_ROOT%\bin;%PATH% SET XAPPLRESDIR= SET XCMSDB= SET XKEYSYMDB= SET XNLSPATH= if not exist %CYGWIN_ROOT%\tmp\.X11-unix\X0 goto CLEANUP-FINISH attrib -s %CYGWIN_ROOT%\tmp\.X11-unix\X0 del %CYGWIN_ROOT%\tmp\.X11-unix\X0 :CLEANUP-FINISH if exist %CYGWIN_ROOT%\tmp\.X11-unix rmdir %CYGWIN_ROOT%\tmp\.X11-unix if "%OS%" == "Windows_NT" goto OS_NT echo startxdmcp.bat - Starting on Windows 95/98/Me goto STARTUP :OS_NT REM Windows NT/2000/XP echo startxdmcp.bat - Starting on Windows NT/2000/XP :STARTUP %RUN% XWin -query tekknolagi.dyndns.org -clipboard -lesspointer -scrollbars -screen 0 1050x1655@2 -screen 1 1680x985@1

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• Using Quickly for text-heavy app

  - by Kevin

  I am trying to create a small app that displays documentation. When it is run, the application window will display a main menu with buttons labeled 'Document 1', 'Document 2', etc. If a user clicks on one of those buttons, the text from the corresponding document will be displayed in the window. Very basic. The text documents range in length from 1000 to 5000 words, and they need basic formatting (bold, italic, maybe one or two font choices). My question is this: what is the best way to store and display long blocks of formatted text, using Quickly? There seems to be a few options: (1) I could load the text blocks into long python strings, (2) I could load the text from text files, or (3) I could somehow copy and paste the formatted text into Glade. In the first two options, I'm not sure how I would format the text (add italic and bold, for instance) once it was loaded. I have experience with PHP/MySQL/HTML/CSS/Javascript, but I'm new to Python. Any help would be appreciated.

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• How do I boot a virtual machine image from my network?

  - by Haabda

  I have many machines which require the same configurations. My goal is to boot them all from the network and load a virtual machine. It would be wonderful to have one image for all of our customer service machines. That way, I could load the virtual image, perform updates, and know the next time they boot up they will have all the changes. Ideally, the machines would store the image locally and only download a new image if there has been a change. With all the information out there on "desktop virtualization", "PXE booting", and "virtual machines", I feel lost. I have been reading for hours and feel like I have only just scratched the surface. I would like to do this using open source or free software. Any suggestions?

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• Apache 2.4.2 with PHP 5.4.4 crashes as soon as phpinfo() script is opened

  - by Gremo

  As soon as i open a phpinfo() script called version.php apache stops working. Here is the error.log file. My configuration (my local development machine): Windows 7 Home Premium x64 SP1 with latest updates Apache 2.4.2 win32 from Apache Lounge PHP 5.4.4 VC9 x86 TS from PHP For Windows php5apache2_4.dll (PHP 5.4.4) taken from Apache Lounge php5apache2_4.dll-php-5.4-win32.zip PATH environment variable is PATH=C:\WAMP\Apache\bin;C:\WAMP\PHP and installation folders (unzipping) are: C:/WAMP/Apache C:/WAMP/PHP Microsoft Visual C++ 2010 SP1 x86/x64 installed and updated. So everything looks fine to me. PHP integration in httpd.conf is: # Integrazione PHP LoadModule php5_module "C:/WAMP/PHP/php5apache2_4.dll" PhpIniDir "C:/WAMP/PHP" AddType application/x-httpd-php .php <IfModule dir_module> DirectoryIndex index.html index.php </IfModule>

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• How to build a "traffic AI"?

  - by Lunikon

  A project I am working on right now features a lot of "traffic" in the sense of cars moving along roads, aircraft moving aroun an apron etc. As of now the available paths are precalculated, so nodes are generated automatically for crossings which themselves are interconnected by edges. When a character/agent spawns into the world it starts at some node and finds a path to a target node by means of a simply A* algorithm. The agent follows the path and ultimately reaches its destination. No problem so far. Now I need to enable the agents to avoid collisions and to handle complex traffic situations. Since I'm new to the field of AI I looked up several papers/articles on steering behavior but found them to be too low-level. My problem consists less of the actual collision avoidance (which is rather simple in this case because the agents follow strictly defined paths) but of situations like one agent leaving a dead-end while another one wants to enter exactly the same one. Or two agents meeting at a bottleneck which only allows one agent to pass at a time but both need to pass it (according to the optimal route found before) and they need to find a way to let the other one pass first. So basically the main aspect of the problem would be predicting traffic movement to avoid dead-locks. Difficult to describe, but I guess you get what I mean. Do you have any recommendations for me on where to start looking? Any papers, sample projects or similar things that could get me started? I appreciate your help!

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• GF 3.0.1 + Virtual Server: www.myhost.com:8080/projectname-war => www.myhost.com. How?

  - by Harry Pham

  I need to change www.myhost.com:8080/myproject-war to www.myhost.com. This is what I try. In admin console in Glassfish 3.0.1, I create a http-listener-3 with port 9090 and address 0.0.0.0 (I want to have port 80, but got access-denied or some sort). I then create a virtual server call scholar, with Id=scholar, Hosts=${com.sun.aas.hostName}, Network Listeners: http-listener-3, Default Web Module=project#project-war.war(it is the only option from the drop down list since I only deploy 1 app). Then under Applications, I set the virtual server of the application to be scholar. Save and restart. I try localhost:9090, and expecting that it will load my project like as if I type localhost:9090/project-war. But it does not. I already set the Default Web Module, to be the project, why doesnt it load the project by default?

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• Normalize Accept-Encoding via HAProxy for optimized Squid hit rate

  - by Matt Beckman

  Our website infrastructure uses HAProxy for load balancing, a Squid cluster for caching, and application data is on an IIS cluster. We load balance HAProxy by URI to optimize the Squid hit-rate, but we know that Squid is holding different copies of each page based on the Accept-Encoding header passed to it by the browser, and so IE (gzip, deflate) will have a different copy of a cached page than Firefox (gzip,deflate) or Chrome (gzip,deflate,sdch). We want to normalize the Accept-Encoding headers and I think the best place to do so would be in HAProxy. I'd appreciate it if someone could offer some ideas on how to accomplish this without breaking support for clients without gzip or deflate support.

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• How to overcome politics of the net (Google translate code refuses to work from a specific region)

  - by Jawad

  According to the FAQ's I am not sure if my question is a ok to ask or will be closed or should I post it in the meta or even I would blame some one for downvoting it. However it is one that has been bugging me since the trouble strated. Let me explain. I have this Web Site. It uses the Google Translate API (Can't post the link, does not open from this region) with the following code. <meta name="google-translate-customization" content="9f841e7780177523-3214ceb76f765f38-gc38c6fe6f9d06436-c"></meta> <script type="text/javascript"> function googleTranslateElementInit() { new google.translate.TranslateElement({pageLanguage: 'en'}, 'google_translate_element'); } </script> <script type="text/javascript" src="http://translate.google.com/translate_a/element.js?cb=googleTranslateElementInit"></script> The problem is since this, it just stopped working. On the site you can see that I had to actually remove the above from here, here, and here while left it here, here, here and here. This is so because the the web site "refuses" to load at all with the pages that have the code (i.e., from this region.) If I use Firefox Stealthy Plugin and open the site in Firefox, It works like a charm without any problems. But with Google Chrome, Apple Safari and Opera Web browser, the site does not load/open at all because of the Google translate. (I know this because If I remove the Google Translate Code, the site works/loads fine) It was one thing to program for "cross browser compatability" and alltogether another to program for "cross region compatability". What can I do to make sure that the site works from anywhere? Do I completely remove the Google Translate code and just have to do without the additional functionality or Do I look for alternatives like this or according to this?

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• Run Bash Script Another Server

  - by psce

  I want to run command one by one, for change the names of the directories on the server. When I run script, directories renamed in server 1. But, directories are not found in server 2. What the error could be in the script? Script; #!/bin/bash mach_directory=/home/user/example erase_dir1=cache erase_dir2=tmp for i in {0..10} do user=user server=$(ssh $user@server$i hostname) ssh $user@$server find $mach_directory -type d -name $erase_dir1 ! -path "*Admin/$erase_dir1*" -print0 | while IFS= read -r -d '' file ; do mv "$file" "${file}_$(date +%d%m%Y)"; done ssh $user@$server find $mach_directory -type d -name $erase_dir2 ! -path "*Admin/$erase_dir2*" -print0 | while IFS= read -r -d '' file ; do mv "$file" "${file}_$(date +%d%m%Y)"; done done

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• SpeedTracer NETWORK_RESOURCE_RESPONSE vs NETWORK_RESOURCE_FINISH

  - by Ben Flynn

  I'm using SpeedTracer with GoogleChrome to measure the load times of requested resources. The SpeedTracer site says: NETWORK_RESOURCE_RESPONSE "Indicates that the renderer has started receiving bits from the resource loader" NETWORK_RESOURCE_FINISH "Indictes a resource load is successful and complete." In my mind that means we would always see a network resource response (bytes are arriving) before we see a finish (all bytes received). This doesn't seem to be the case at all. Here is a sample: Request Timing @33519ms for 926ms Response Timing @34445ms for -847ms Total Timing @33519ms for 78ms I'm guessing response time isn't supposed to be negative. Can someone explain this or is this a bug? I'm using Chrome 10.0.612.3 dev with a SpeedTracer I downloaded today.

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• InDesign CS4+ Data Merge with Remote Images?

  - by Todd F

  Is it possible to use InDesign's data merge to link to remotely hosted images if the full path is known?

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• Is it OK to use dynamic typing to reduce the amount of variables in scope?

  - by missingno

  Often, when I am initializing something I have to use a temporary variable, for example: file_str = "path/to/file" file_file = open(file) or regexp_parts = ['foo', 'bar'] regexp = new RegExp( regexp_parts.join('|') ) However, I like to reduce the scope my variables to the smallest scope possible so there is less places where they can be (mis-)used. For example, I try to use for(var i ...) in C++ so the loop variable is confined to the loop body. In these initialization cases, if I am using a dynamic language, I am then often tempted to reuse the same variable in order to prevent the initial (and now useless) value from being used latter in the function. file = "path/to/file" file = open(file) regexp = ['...', '...'] regexp = new RegExp( regexp.join('|') ) The idea is that by reducing the number of variables in scope I reduce the chances to misuse them. However this sometimes makes the variable names look a little weird, as in the first example, where "file" refers to a "filename". I think perhaps this would be a non issue if I could use non-nested scopes begin scope1 filename = ... begin scope2 file = open(filename) end scope1 //use file here //can't use filename on accident end scope2 but I can't think of any programming language that supports this. What rules of thumb should I use in this situation? When is it best to reuse the variable? When is it best to create an extra variable? What other ways do we solve this scope problem?

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• tcpsndbuf high fail count

  - by Matthew Crenshaw

  I've got a small setup, one machine that acts as a load balancer and two machines that do all the work. The load balancer runs nginx (static content + php proxying to workers) and mysql, the two workers run php5-fpm and memcached (pooled between workers). Here's beancounters for the balancer: tcpsndbuf 2171848 2386280 10000000 20000000 3947733 tcprcvbuf 1248288 1669504 10000000 20000000 0 Here's worker 1: tcpsndbuf 951976 1262672 20000000 40000000 0 tcprcvbuf 278528 393496 20000000 40000000 0 Here's worker 2: tcpsndbuf 989888 527472 20000000 40000000 0 tcprcvbuf 212992 452520 20000000 40000000 0 The balancer has 1GB ram, the two workers have 2GB ram each. What is eating my send buffer?

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