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• USB keyboard does not load after 13.10 upgrade

  - by Paul

  Problem: Running kernel 3.11.0-12-generic after a Ubuntu upgrade from 13.04 to 13.10 my USB keyboard is not recognised, thus I am not able to unlock my encrypted disk. I suspect it might be related to a minimal/incorrect install of initrd. Question: How do I go about getting the newest kernel to recognise my generic USB keyboard, allowing me to unlock my encrypted disk? What I have tried: I have already re-installed the newest kernel: sudo apt-get install --reinstall linux-image-generic linux-image and I have also updated the initrd: update-initramfs -c -k 3.11.0-12-generic Back story: I just completed upgrading my Ubuntu system from 13.04 to 13.10. When I subsequently rebooted by system I was no longer able to enter my encryption password (passphrase) as the keyboard drivers did not load. Temporary workaround: Earlier in the boot process (before the keyboard stops working) I was able to enter GRUB menu were I choose to boot from an older kernel (3.8.0-31-generic) which did load the USB keyboard drivers. This is currently the kernel I am running. Thanks

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• Load Page on TreeView Node Selection in Silverlight 3

  In this article we will see how we can load different pages based on the selection we make in TreeView.

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• Can't load Wordpress static files on home network

  - by Tosho

  I've just installed Wordpress 3.5 on my laptop (LAMP on Ubuntu 12.10) and when I'm trying to access the site from my phone but it doesn't load static files (css and images). I tried with Opera Mobile Emulator on my laptop and it works perfectly. I also have another Drupal site on my localhost which I can load from my phone without any issues. Both directories have chmod 777 permissions. What can cause that? Just tried to open the site from my sister's laptop but it except static file I can't access any post or page.

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• How can I only load up the terminal via grub then upgrade

  - by Parris

  So after the upgrade I made last night I can't load up the GUI properly. I have a feeling the upgrade died half way through. Grub is working. All the kernals are listed. That being said how can I: A) Make grub load into terminal only. No gui. B) How can I reinstall gnome? C) How can I try to install the upgrade for ubuntu again? It may or may not let me "do-release-upgrade". So what are my options here? Thanks!

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• jQuery event not working after load

  - by Shina

  $(document).ready(function(){ $(function() { $('a.ajaxload').live('click', function(e) { var url = $(this).attr('href'); $('#desktopcontainer').load(url); // load the html response into a DOM element e.preventDefault(); // stop the browser from following the link }); }); $(function() { $(".accordion .accordion-tabs .tab").each(function(){ $(this).click(function(){ if ($(this).hasClass('tab')){ $(this).removeClass('tab'); $(this).addClass('active'); }else{ $(this).removeClass('active'); $(this).addClass('tab'); } $(this).next().slideToggle('slow'); return false; }); }); }); }); My tab works fine but after I click the "a.ajaxload" to add a content to the page, then my tab doesn't respond anymore. Can anyone please tell me where the problem is? Thank you in advance.

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• zend tool is not working

  - by user362155

  Hi, I've installed ZendStudio 7.2 it creates project normally with no error but when i try to add action(s) in it, it says project profile does not exist. and the error log is as follow: executing zf create action showLatest index-action-included An Error Has Occurred A project profile was not found. Zend Framework Command Line Console Tool v1.10.2 Details for action "Create" and provider "Action" Action zf create action name controller-name[=Index] view-included[=1] module Failed loading ./ZendDebugger.so: (null) PHP Warning: PHP Startup: Unable to load dynamic library './ext/bcmath.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/bz2.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/calendar.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/ctype.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/curl.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/exif.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/fileinfo.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/ftp.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/gd.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/imagick.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/json.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/ldap.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/mbstring.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/mcrypt.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/memcache.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/mhash.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/mime_magic.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/mssql.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/mysql.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/mysqli.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/pcntl.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/pgsql.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/posix.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/shmop.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/soap.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/sockets.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/sqlite.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/sysvmsg.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/sysvsem.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/sysvshm.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/tidy.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/tokenizer.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/wddx.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/xmlreader.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/xmlrpc.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/xsl.so' - (null) in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library './ext/zip.so' - (null) in Unknown on line 0 please help me to configure latest ZendTool with ZendStudio 7.2 or how can i get rid of this. i am runin ZS 7.2 on my mac os x 10.5.8 thanks.

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• is it possible to symulate load balancers, and how much performance gain they provide?

  - by Lakhlani Prashant

  I have a website which runs on IIS (Asp.net application, some of them are in dotnetnuke also) and we are expecting higher numbers of traffic on some of the sites, so we are planning to add a load-balancer, but before going to do that, we just want to konw is it worth to do that? so, I want to know if is it possible to simulate load balancer, and how much performance gain they provide?

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• Is it possible to simulate load balancers, and how much performance gain they provide?

  - by Lakhlani Prashant

  I have a website which runs on IIS (Asp.net application, some of them are in dotnetnuke also) and we are expecting higher numbers of traffic on some of the sites, so we are planning to add a load-balancer, but before going to do that, we just want to know is it worth to do that? So, I want to know if is it possible to simulate load balancer, and how much performance gain they provide?

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• How to load content from external page using jQuery?

  - by Pr0fess0rX

  Hello, Is it possible to load content from an external page (not relative) into div using jquery? I mean here by external page is another web application like for example: http://www.yahoo.com There is the code: $("#externalContent").load("http://www.yahoo.com", function () { alert("loading finish"); }); when I use firebug I got this result: you see here, i highlighted the response code, it's 200 which means OK, but still no content loaded. DOES anyone know the reason?

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• Biztalk - how do I set up MSMQ load balancing and high availability ?

  - by FullOfQuestions

  Hi, From what I understand, in order to achieve MSMQ load-balancing, one must use a technology such as NLB. And in order to achieve MSMQ high-availability, one must cluster the related Biztalk Host (and hence the underlying servers have to be in a cluster themselves). Yet, according to Microsoft Documentation, NLB and FailOver Clustering technologies are not compatible. See this link for reference: http://support.microsoft.com/kb/235305 Can anyone PLEASE explain to me how MSMQ load-balancing and high-availability can be achieved? thank you in advance, M

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• How to load file into mysql DB on a shared hosting platform?

  - by Vasu

  A process running on my machine collects data from various websites and stores it in the local mysql db. Same data is exported using SELECT INTO OUTFILE and FTPed to the shared host every few hours. My hosting provider doesn't allow LOAD DATA INFILE to be executed on the shared host? What are my other options for automated/scheduled load to MYSQL db on my shared host?

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• How to load an external swf to the main stage from an instanced child class?

  - by RaamEE

  Hi, I am trying to get an instance of a class to the load an external swf and show it. So far I have the following: 1) I wrote a class that uses the Loader class to load an external swf "loadExtSWF". 2) I have a fla named "MainSWF.fla" that uses a document class "MainSWF.as". 3) I have the MainSWF.as file that instances "loadExtSWF" and calls loadExtSWF.startLoad to load the swf. This almost works. The instance of loadExtSWF loads the external swf, but the swf is not displayed. If I replace the fla's document class with loadExtSWF (this has an empty constructor) instead of MainSWF, and run loadExtSWF.startLoad, then the external swf is loaded and displayed. It seems that the way I initially do it, loads the swf to the wrong stage (?). Any ideas? Thanks for the help. Bye, RaamEE P.S. If you replace the document class for test_tsscreen from test_tsscreen.as to TSScreen.as, and remove the comment inside the test_tsscreen's constructor, the swf will be loaded. my code is: file test_as3.swf an external as3 swf file. file test_tsscreen.fla the fla is empty and references test_tsscreen.as as its document class. file test_tsscreen.as package { import flash.display.MovieClip; import TSScreen; public class test_tsscreen extends MovieClip{ var tsScreen1; public function test_tsscreen(){ // var tsScreen1:TSScreen = new TSScreen(10,10,100,100,0.5,0); var tsScreen1:TSScreen = new TSScreen(); tsScreen1.startLoad(this.stage); } } } file TSScreen.as package { import flash.display.MovieClip; import flash.display.*; import flash.net.URLRequest; import flash.system.ApplicationDomain; import flash.system.LoaderContext; import flash.display.Loader; import flash.events.Event; import flash.events.ProgressEvent; public class TSScreen extends MovieClip implements ITSScreenable{ public function TSScreen():void{ // startLoad(this); //Look important comment in above text } function startLoad(_this:Stage) { var mLoader:Loader = new Loader(); var mRequest:URLRequest = new URLRequest("test_as3.swf"); mLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, onCompleteHandler); mLoader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, onProgressHandler); _this.parent.addChild(mLoader); mLoader.load(mRequest); trace(this.name); trace(_this.name); } function onCompleteHandler(loadEvent:Event) { addChild(loadEvent.currentTarget.content); } function onProgressHandler(mProgress:ProgressEvent) { var percent:Number = mProgress.bytesLoaded/mProgress.bytesTotal; trace(percent); } } }

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• iproute2 not functioning ("RTNETLINK answers: Operation not supported")

  - by James Watt

  The command and error message: gtwy ~ # ip rule add from 64.251.23.186 table t1 RTNETLINK answers: Operation not supported Older article of the same problem, but it did not help me: http://forums.gentoo.org/viewtopic-t-696982-start-0-postdays-0-postorder-asc-highlight-.html I have looked on google at great lengths to try to find a solution. It seems that my kernel configuration is missing something? Any help or ideas would be appreciated. My system/kernel is: 2.6.36-gentoo-r5 #3 SMP Thu Jan 13 10:49:06 EST 2011 x86_64 Intel(R) Xeon(R) CPU X3220 @ 2.40GHz GenuineIntel GNU/Linux. I am posting this on SuperUser since this system is used as a workstation and this problem is unrelated to specific tasks that are handled exclusively by servers. iproute2 is installed: gtwy etc # emerge --search iproute2 Searching... [ Results for search key : iproute2 ] [ Applications found : 1 ] * sys-apps/iproute2 Latest version available: 2.6.35-r2 Latest version installed: 2.6.35-r2 Size of files: 378 kB Homepage: http://www.linuxfoundation.org/collaborate/workgroups/networking/iproute2 Description: kernel routing and traffic control utilities License: GPL-2 A small snippet of my kernel .config (view entire .config): gtwy linux # cat .config | grep NETLINK CONFIG_NETFILTER_NETLINK=y CONFIG_NETFILTER_NETLINK_QUEUE=y CONFIG_NETFILTER_NETLINK_LOG=y CONFIG_NF_CT_NETLINK=y CONFIG_SCSI_NETLINK=y gtwy linux # cat .config | grep IP_ADVANCED_ROUTER CONFIG_IP_ADVANCED_ROUTER=y gtwy linux # cat .config | grep INGRESS CONFIG_NET_SCH_INGRESS=y gtwy linux # cat .config | grep NET_SCHED CONFIG_NET_SCHED=y emerge --info Portage 2.1.9.25 (default/linux/amd64/10.0, gcc-4.1.2, glibc-2.10.1-r1, 2.6.36-gentoo-r5 x86_64) ================================================================= System uname: Linux-2.6.36-gentoo-r5-x86_64-Intel-R-_Xeon-R-_CPU_X3220_@_2.40GHz-with-gentoo-1.12.13 Timestamp of tree: Thu, 13 Jan 2011 01:15:01 +0000 app-shells/bash: 4.0_p37 dev-java/java-config: 1.3.7-r1, 2.1.10 dev-lang/python: 2.4.6, 2.5.4-r4, 2.6.5-r2, 3.1.2-r3 sys-apps/baselayout: 1.12.13 sys-apps/sandbox: 1.6-r2 sys-devel/autoconf: 2.13, 2.65 sys-devel/automake: 1.9.6-r2::<unknown repository>, 1.10.2, 1.11.1 sys-devel/binutils: 2.20.1-r1 sys-devel/gcc: 4.1.2, 4.3.4, 4.4.3-r2 sys-devel/gcc-config: 1.4.1 sys-devel/libtool: 2.2.6b sys-devel/make: 3.81 virtual/os-headers: 2.6.30-r1 (sys-kernel/linux-headers) ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=nocona -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /var/bind" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/php/apache2-php5/ext-active/ /etc/php/cgi-php5/ext-active/ /etc/php/cli-php5/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo" CXXFLAGS="-march=nocona -O2 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="assume-digests binpkg-logs distlocks fixlafiles fixpackages news parallel-fetch protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch" GENTOO_MIRRORS="http://gentoo.chem.wisc.edu/gentoo" LC_ALL="en_US.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" LINGUAS="en" MAKEOPTS="-j5" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.namerica.gentoo.org/gentoo-portage" USE="acl amd64 apache2 berkdb bzip2 cli cracklib crypt ctype cups curl cxx dri fortran gdbm gpm iconv jpeg jpeg2k libwww mmx modules mudflap multilib mysql ncurses nls nptl nptlonly openmp pam pcre perl php png pppd python readline session sockets sse sse2 ssl symlink sysfs tcpd threads unicode vhosts xml xorg xsl zlib" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ubx" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="en" PHP_TARGETS="php5-3" RUBY_TARGETS="ruby18" USERLAND="GNU" VIDEO_CARDS="fbdev glint intel mach64 mga neomagic nouveau nv r128 radeon savage sis tdfx trident vesa via vmware dummy v4l" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, LANG, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS

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• Apache 2.2, worker mpm, mod_fcgid and PHP: Can't apply process slot

  - by mopoke

  We're having an issue on an apache server where every 15 to 20 minutes it stops serving PHP requests entirely. On occasions it will return a 503 error, other times it will recover enough to serve the page but only after a delay of a minute or more. Static content is still served during that time. In the log file, there's errors reported along the lines of: [Wed Sep 28 10:45:39 2011] [warn] mod_fcgid: can't apply process slot for /xxx/ajaxfolder/ajax_features.php [Wed Sep 28 10:45:41 2011] [warn] mod_fcgid: can't apply process slot for /xxx/statics/poll/index.php [Wed Sep 28 10:45:45 2011] [warn] mod_fcgid: can't apply process slot for /xxx/index.php [Wed Sep 28 10:45:45 2011] [warn] mod_fcgid: can't apply process slot for /xxx/index.php There is RAM free and, indeed, it seems that more php processes get spawned. /server-status shows lots of threads in the "W" state as well as some FastCGI processes in "Exiting(communication error)" state. I rebuilt mod_fcgid from source as the packaged version was quite old. It's using current stable version (2.3.6) of mod_fcgid. FCGI config: FcgidBusyScanInterval 30 FcgidBusyTimeout 60 FcgidIdleScanInterval 30 FcgidIdleTimeout 45 FcgidIOTimeout 60 FcgidConnectTimeout 20 FcgidMaxProcesses 100 FcgidMaxRequestsPerProcess 500 FcgidOutputBufferSize 1048576 System info: Linux xxx.com 2.6.28-11-server #42-Ubuntu SMP Fri Apr 17 02:45:36 UTC 2009 x86_64 GNU/Linux DISTRIB_ID=Ubuntu DISTRIB_RELEASE=9.04 DISTRIB_CODENAME=jaunty DISTRIB_DESCRIPTION="Ubuntu 9.04" Apache info: Server version: Apache/2.2.11 (Ubuntu) Server built: Aug 16 2010 17:45:55 Server's Module Magic Number: 20051115:21 Server loaded: APR 1.2.12, APR-Util 1.2.12 Compiled using: APR 1.2.12, APR-Util 1.2.12 Architecture: 64-bit Server MPM: Worker threaded: yes (fixed thread count) forked: yes (variable process count) Server compiled with.... -D APACHE_MPM_DIR="server/mpm/worker" -D APR_HAS_SENDFILE -D APR_HAS_MMAP -D APR_HAVE_IPV6 (IPv4-mapped addresses enabled) -D APR_USE_SYSVSEM_SERIALIZE -D APR_USE_PTHREAD_SERIALIZE -D SINGLE_LISTEN_UNSERIALIZED_ACCEPT -D APR_HAS_OTHER_CHILD -D AP_HAVE_RELIABLE_PIPED_LOGS -D DYNAMIC_MODULE_LIMIT=128 -D HTTPD_ROOT="" -D SUEXEC_BIN="/usr/lib/apache2/suexec" -D DEFAULT_PIDLOG="/var/run/apache2.pid" -D DEFAULT_SCOREBOARD="logs/apache_runtime_status" -D DEFAULT_ERRORLOG="logs/error_log" -D AP_TYPES_CONFIG_FILE="/etc/apache2/mime.types" -D SERVER_CONFIG_FILE="/etc/apache2/apache2.conf" Apache modules loaded: alias.load auth_basic.load authn_file.load authz_default.load authz_groupfile.load authz_host.load authz_user.load autoindex.load cgi.load deflate.load dir.load env.load expires.load fcgid.load headers.load include.load mime.load negotiation.load rewrite.load setenvif.load ssl.load status.load suexec.load PHP info: PHP 5.2.6-3ubuntu4.6 with Suhosin-Patch 0.9.6.2 (cli) (built: Sep 16 2010 19:51:25) Copyright (c) 1997-2008 The PHP Group Zend Engine v2.2.0, Copyright (c) 1998-2008 Zend Technologies

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• Way to speed up load-balanced ssl using nginx?

  - by paulnsorensen

  So the setup for our website is 4 nodes running rails 3 and nginx 1 that all use the same GoDaddy certificate. Because we are a paid site, we have to maintain PCI-DSS compliance and thus have to use the more expensive SSL ciphers -- also we force SSL using Rack. I've recently switched over to Linode's NodeBalancer (which I've read is an HACluster), and we're not getting the performance we'd ideally like. From what I've read, it looks like terminating the SSL on the nodes using the high cipher is what is causing the poor performance, but I'd like to be thorough. Is there anything I can do? I've read about other ways to terminate the SSL before the NodeBalancer (like using stud), but I don't know enough about these solutions. We certainly don't want to do anything experimental or anything that has a single point of failure. If there really isn't anything I can do to speed up the SSL handshake, my alternative would be to support certain pages on Rails using a secure and insecure subdomain. I've found a few guides that walk through that, but my resulting question is in this situation, would it be better to have nginx handle forcing ssl on the secure subdomain instead of rails? Thanks!

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• Best Solution for Load Balancing geographically distributed NFS File Access?

  - by DairyKnight

  I'm trying to find an optimum solution for accessing the NFS file share in my company. We have a central file server in North America and has 30GB~50GB of updated data everyday. And it's very slow for our Europe and Asia branches to access directly. Therefore, I'm trying to setup two replicate servers in those continents. I'm currently using rsync, but wonder if there exists a better solution acts more like a distributed RAID, which allows the user to transparently access the file whether synced or not. And user request will be dispatched to remote server if the file is not yet synced. I'm now looking into DRBD, but it seems not to have the functionality of auto-dispatching requests. Does anyone know if there's a better solution?

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• heavy load on mysql

  - by payal

  i have dedicated server with very good configuation like 16 gb ram etc but i am facing heavy load from mysql i am running a music wesbite however only one database is running and 5-10 pages are only running.when i click on whm show processlist it shows only 2-3 processes However whm load is always less than one but when i click on whm load it shows 20% of cpu usage by mysql and after some time it starts saying can not connect to mysql . mysql server has gone away 1691 (Trace) (Kill) mysql 0 19.2 2.7 /usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --user=mysql --log- error=/var/lib/mysql/server.xyz.com.err --pid-file=/var/lib/mysql/server.xyz.com.pid i have tested static pages they are coming blezing fast but all dynamic pages which are using mysql is coming damn slow it takes years to open.. my.conf file is [mysqld] key_buffer = 1536M max_allowed_packet = 1M max_connections = 250 max_user_connections = 15 wait_timeout=40 connect_timeout=10 table_cache = 512 sort_buffer_size = 2M read_buffer_size = 2M read_rnd_buffer_size = 8M myisam_sort_buffer_size = 64M thread_cache_size = 8 query_cache_size = 32M server-id = 14 old-passwords = 1 [mysqldump] quick max_allowed_packet = 16M [mysql] no-auto-rehash [myisamchk] key_buffer = 256M sort_buffer_size = 256M read_buffer = 2M write_buffer = 2M [mysqlhotcopy] interactive-timeout ihave checked log error file it says nothing.i have increased maximum connnection also to 1000 but still same problem is there .if i disconnect that one databasejust by changing the name of database i can see withing half hour the load of server and mysql goes down to negliglble .i have tested everything and if there are some query which can cause heavy load to server can you please list which type of query can cause heavy load on server then also for 5-10 pages it will never cause that much heavy load. i have seen server with 500 websites but was working just fine.

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• heavy load on mysql

  - by payal

  i have dedicated server with very good configuation like 16 gb ram etc but i am facing heavy load from mysql however only one database is running and 5-10 pages are only running. However whm load is always less than one but when i click on whm load it shows 20% of cpu usage by mysql and after some time it starts saying can not connect to mysql . mysql server has gone away 1691 (Trace) (Kill) mysql 0 19.2 2.7 /usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --user=mysql --log- error=/var/lib/mysql/server.xyz.com.err --pid-file=/var/lib/mysql/server.xyz.com.pid i have tested static pages they are coming blezing fast but all dynamic pages which are using mysql is coming damn slow it takes years to open.. ihave checked log error file it says nothing.i have increased maximum connnection also to 1000 but still same problem is there .if i disconnect that one databasejust by changing the name of database i can see withing half hour the load of server and mysql goes down to negliglble .i have tested everything and if there are some query which can cause heavy load to server can you please list which type of query can cause heavy load on server then also for 5-10 pages it will never cause that much heavy load. i have seen server with 500 websites but was working just fine.

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• load balancing two web servers each on two different isp's?

  - by Scott

  I have two ISP's that provide me hosting via apache / php / mysql. I am running drupal on them. On occasion the mysql server will go away (crash), so I was hoping to find a reasonable way to have a fail over, if server A SQL is down, all traffic is sent to server B. I know traditionally this is handled in DNS where a second alternate ip is given if there is a problem - or similar. But I do not have control over the isp, other than I can run php, perl and the usual apache stuff. Also, I have static ip's on each isp, and I can create dns entries (A/CNAME/TXT). So, I was hoping there might be a way for me to have a script that checks if drupal has a problem, and if so, somehow alter dns, or ? Or, any other ideas? (other than spending lots more $ on a better isp)

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• Doing a POST to a Service Operation in ADO.NET data services

  - by DataServices123

  Is it possible to POST to a service operation defined in an ADO.NET data service (it is decorated with WebInvoke)? I had no problem calling the service operation as an HTTP GET. However, when I switched to doing a POST, the stack trace consistently comes back with "Parameter cannot be NULL". I am using the jQuery syntax below, and sending the POST as JSON (though I'm not including the $.ajax call, the parameter names line up exactly). It would be possible to try this with WCF, as opposed to ADO.NET data services (newly renamed as WCF data services). However, my preference would be to use this approach first. I have tried this with and without the stringify method. Most examples online only show how to use a POST to entities (i.e. for handling CRUD operations). However, in this case we are POSTing to a Service Operation. function PostToDataService() { varType = "POST"; varUrl = "http://dev-server/MyServices/MyService.svc/SampleSO"; varData = { CustomMessage: $("#TextBox1").val() }; varData = JSON.stringify(varData); varContentType = "application/json; charset=utf-8"; varDataType = "json"; varProcessData = true; CallService(); }

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• How can I load file into web app through certain periods?

  - by Elena

  Hi all! I have next task: I need to load the same file into my web app several times, for example - twice a day! Suppose in that file I have information, that changes, and I need to load this info into my app to change the statistics for example. How can I load file several times (twice an hour, or twice a day)? What should I use? Is any algorithm to do that? I am not allowed to use external libraries like Quartz Scheduler. So I need to do it with Thread and/or Timer. Can anybody give me some example or algorithm how to do it. Where can I create the entry point to my Thread, can I do it in managed bean or I need some sort of filter/listener/servlet. I works with jsf and richFaces. Maybe in this technologies there are some algorithms to solve my problem. Any ideas? Thanks very much for help!

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• Any suggestions for good automated web load testing tool?

  - by fmunkert

  What are some good automated tools for load testing (stress testing) web applications, that do not use record and replay of HTTP network packets? I am aware that there are numerous load testing tools on the market that record and replay HTTP network packets. But these are unsuitable for my purpose, because of this: The HTTP packet format changes very often in our application (e.g. when we optimize an AJAX call). We do not want to adapt all test scripts just because there is a slight change in HTTP packet format. Our test team shall not need to know any internals about our application to write their test scripts. A tool that replays HTTP packets, however, requires the team to know the format of HTTP requests and responses, such that they can adapt details of the replayed HTTP packets (e.g. user name). The automated load testing tool I am looking for should be able to let the test team write "black box" test scripts such as: Invoke web page at URL http://... . First, enter XXX into text field XXX. Then, press button XXX. Wait until response has been received from web server. Verify that text field XXX now contains the text XXX. The tool should be able to simulate up to several 1000 users, and it should be compatible with web applications using ASP.NET and AJAX.

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• .load jquery function not working when using specific div.

  - by user643440

  This line does not work $('#bookcontainer').load( startSlide ); while this line does $(window).load( startSlide ); #bookcontainer is a div containing four images. Here's my whole code: // JavaScript Document $('#bookcontainer').load( startSlide ); var slide; $('#slider').hover( function() { $('.arrow').show(); }, function() { $('.arrow').hide(); }); function startSlide() { $('.book').show(); slide = setInterval(slideR, 5000); } function slideR() { $('.book').first().css('left', '960px').appendTo('#bookcontainer').animate( { "left": "-=960px" }, { duration: 1000, easing: 'easeOutCubic' }); } function slideL() { $('.book').last().animate( { "left":"+=960px" }, { duration: 1000, easing: 'easeOutCubic', complete: function() { $(this).prependTo('#bookcontainer').css('left', '0px'); } }); } function right() { clearInterval(slide); slideR(); startSlide(); }; function left() { clearInterval(slide); slideL(); startSlide(); };

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• Psychonauts crashes right after entering load save door

  - by user67974

  Psychonauts crashes right after entering the 'Load Save' door. Here is the terminal output: Shader assembly time: 0.88 seconds Found OpenAL device: 'Simple Directmedia Layer' Found OpenAL device: 'ALSA Software' Found OpenAL device: 'OSS Software' Found OpenAL device: 'PulseAudio Software' Opened OpenAL Device: '(null)' ERROR: CAudioDrv::CAudioDrv->alGenSources reports AL_INVALID_VALUE error. PSYCHONAUTS UNIX FILENAME: corrected 'workresource/sounds/commonfx.isb' to 'WorkResource/Sounds/commonfx.isb' PSYCHONAUTS UNIX FILENAME: corrected 'workresource/sounds/commonvoice.isb' to 'WorkResource/Sounds/commonvoice.isb' PSYCHONAUTS UNIX FILENAME: corrected 'workresource/sounds/commonmusic.isb' to 'WorkResource/Sounds/commonmusic.isb' PSYCHONAUTS UNIX FILENAME: corrected 'workresource/sounds/commonmentalfx.isb' to 'WorkResource/Sounds/commonmentalfx.isb' PSYCHONAUTS UNIX FILENAME: corrected 'workresource/sounds/commonmenfxmem.isb' to 'WorkResource/Sounds/commonmenfxmem.isb' PSYCHONAUTS UNIX FILENAME: corrected 'workresource/sounds/commonfxmem.isb' to 'WorkResource/Sounds/commonfxmem.isb' GameApp::StartUp InitSoundFiles() completed in 0.15 seconds GameApp::StartUp Load some common textures completed in 0.00 seconds WARN: ENGINE: Lua garbage collection starting FreeUnusedBlocksInBuckets released 0 Kb GameApp::StartUp InitEntities() completed in 0.02 seconds PSYCHONAUTS UNIX FILENAME: corrected 'WorkResource/SavedGames/savegameprefs.ini' to 'WorkResource/SAVEDGAMES/savegameprefs.ini' PSYCHONAUTS UNIX FILENAME: corrected 'WorkResource/SavedGames/savegameprefs.ini' to 'WorkResource/SAVEDGAMES/savegameprefs.ini' GameApp::StartUp m_pSaveLoadInterface->Startup() completed in 0.00 seconds GameApp::StartUp m_UserInterface.Setup() completed in 0.00 seconds STUBBED: multisample at EDisplayOptionsWidget (/home/icculus/projects/psychonauts/Source/game/luatest/Game/UIPCDisplayOptions.cpp:97) STUBBED: VK_* at CheckVirtualKey (/home/icculus/projects/psychonauts/Source/CommonLibs/DirectX/SDLInput.cpp:1443) Game: Engine Running hook startup Game: Engine -> SetupGlobalObjects Game: Engine -> SetupLevelMenu Game: Engine -> InitMath GameApp::StartUp InitLua2() completed in 0.00 seconds GameApp::StartUp SetupLevelMenu() completed in 0.00 seconds STUBBED: do we even use this? at InitSocket (/home/icculus/projects/psychonauts/Source/game/luatest/Game/Gameplaylogger.cpp:210) GameApp::StartUp Post-Install total completed in 0.20 seconds Start Up completed in 1.57 seconds UnixMain: StartUp successful.. Working directory: /opt/psychonauts STUBBED: dispatch SDL events at PCMainHandleAnyWindowsMessages (/home/icculus/projects/psychonauts/Source/game/luatest/UnixMain.cpp:56) STUBBED: write me at GetJoystickInput (/home/icculus/projects/psychonauts/Source/CommonLibs/DirectX/SDLInput.cpp:428) STUBBED: write me at GetJoystickActionValue (/home/icculus/projects/psychonauts/Source/CommonLibs/DirectX/SDLInput.cpp:613) PSYCHONAUTS UNIX FILENAME: corrected 'workresource/cutScenes/prerendered/dflogo.bik' to 'WorkResource/cutscenes/prerendered/DFLogo.bik' Prerender subtitle file: workresource\cutScenes\prerendered\dflogo.dfs not found PSYCHONAUTS UNIX FILENAME: corrected 'workresource/cutScenes/prerendered/dflogo.bik' to 'WorkResource/cutscenes/prerendered/DFLogo.bik' STUBBED: fixed function pipeline? at setColorOp (/home/icculus/projects/psychonauts/Source/CommonLibs/DFGraphics/Texture.cpp:2097) STUBBED: fixed function pipeline? at setColorArg1 (/home/icculus/projects/psychonauts/Source/CommonLibs/DFGraphics/Texture.cpp:2106) STUBBED: fixed function pipeline? at setColorArg2 (/home/icculus/projects/psychonauts/Source/CommonLibs/DFGraphics/Texture.cpp:2115) STUBBED: fixed function pipeline? at setAlphaOp (/home/icculus/projects/psychonauts/Source/CommonLibs/DFGraphics/Texture.cpp:2124) STUBBED: fixed function pipeline? at setAlphaArg1 (/home/icculus/projects/psychonauts/Source/CommonLibs/DFGraphics/Texture.cpp:2133) STUBBED: fixed function pipeline? at setAlphaArg2 (/home/icculus/projects/psychonauts/Source/CommonLibs/DFGraphics/Texture.cpp:2142) STUBBED: fixed function pipeline? at setProjected (/home/icculus/projects/psychonauts/Source/CommonLibs/DFGraphics/Texture.cpp:2223) LOC WARN: Could not open Localization file 'Localization/English/_StringTable.lub' STUBBED: memory status at UpdateMemoryTracking (/home/icculus/projects/psychonauts/Source/game/luatest/Game/GameApp.cpp:4884) WARN: Couldn't resize array to 128; out-of-bounds elements are still in use: Vertex Pool, 188 Loading new level 'STMU' STUBBED: Need multithreaded GL at DisplayLoadingScreen (/home/icculus/projects/psychonauts/Source/game/luatest/Game/LoadingScreen.cpp:83) ========================= Memory post unload level ========================= ========================= LOC WARN: Could not open Localization file 'Localization/English/ST_StringTable.lub' DaveD: Info: Texture pack file contains 137 textures Doing a texture readback for locking! Game: Engine Saved[GLOBAL]: InstaHintFord_HostileRecord = [table] Game: Engine Saved[GLOBAL]: InstaHintFord_HostileOrder = [table] WARN: Redundant packfile read: anims\thought_bubble\bubblefirestarting.jan WARN: Redundant packfile read: anims\thought_bubble\bubbleintothemind.jan WARN: Redundant packfile read: anims\thought_bubble\bubbleinvisibility.jan WARN: Redundant packfile read: anims\thought_bubble\bubblepopperfill.jan WARN: Redundant packfile read: anims\thought_bubble\bubbletelekinesis.jan Initializing level script (if there is one) PSYCHONAUTS UNIX FILENAME: corrected 'workresource/sounds/stfx.isb' to 'WorkResource/Sounds/stfx.isb' Game: Engine Reloading goals: Game: Engine Saved[GLOBAL]: NextEncouragement = '/GLZF014TO/ 10' Game: Engine Saved[GLOBAL]: bUsedSalts = 0 Game: Engine Saved[GLOBAL]: bSTEntered = 1 Game: Engine Saved[GLOBAL]: memoriesST = 1 Game: Engine Saved[GLOBAL]: PsiBallColor = 'red' Game: Engine Saved[ST]: lastSubLevel = 'STMU' Game: Engine LOADING LEVEL st.STMU Game: Engine Saved[CA]: CALevelState = 1 Game: Engine Cutscene progression: CS Script moving from state nil to state nil, resultant state nil. Time: 0.124746672809124. * Stack Trace 1: (null) (line -1, file '(none)) () 2: SpawnScript (line -1, file 'C) (global) 3: onBeginLevel (line -1, file '(none)) (field) 4: (null) (line -1, file '(none)) () WARN: Cannot call GetDirectoryListing when running from the DVD Game: Engine Raz spawning at DartStart startpoint VM : LevelScript could not find script 'doorrimlight1' * Stack Trace 1: (null) (line -1, file '(none)) () WARN: (none(-1) SetEntityAlpha LevelScript: NULL script object passed Game: Engine Saved[GLOBAL]: bLoadedFromMainMenu = 1 Game: Engine Saved[GLOBAL]: NextEncouragement = '/GLZF014TO/ 10' Game: Engine Saved[GLOBAL]: NeedRankIncrement = 0 STUBBED: Need multithreaded GL at HideLoadingScreen (/home/icculus/projects/psychonauts/Source/game/luatest/Game/LoadingScreen.cpp:110) WARN: ENGINE: Lua garbage collection starting FreeUnusedBlocksInBuckets released 0 Kb Game: Engine Saved[GLOBAL]: SplineFigmentTVSizex = 4.51434326171875 Game: Engine Saved[GLOBAL]: SplineFigmentTVSizey = 46.38104248046875 Game: Engine Saved[GLOBAL]: SplineFigmentTVSizez = 47.08810424804688 WARN: (none(-1) SetNewAction LevelScript: no string passed ====================== Asset load progression ====================== Initial: 2.518 MB Vertex, 8.688 MB Texture Level : 3.719 MB Vertex, 22.535 MB Texture Scripts: 3.747 MB Vertex, 22.848 MB Texture ====================== ====================== Memory post level load ====================== ====================== WARN: ENGINE: Lua garbage collection starting FreeUnusedBlocksInBuckets released 0 Kb DaveD: Level loaded in 0.14 seconds Anim: anims\objects\tk_arrow_idle.jan: loaded (1 frames latency) Anim: anims\dartnew\helmet\darthelmetdn.jan: loaded (1 frames latency) Anim: anims\thought_bubble\shieldloop.jan: loaded (1 frames latency) Anim: anims\dartnew\standready.jan: loaded (1 frames latency) Anim: anims\dartnew\walkmove.jan: loaded (1 frames latency) Anim: anims\janitor\hint_end.jan: loaded (1 frames latency) Anim: anims\thought_bubble\ballstatic.jan: loaded (1 frames latency) Anim: anims\dartnew\actionfall.jan: loaded (1 frames latency) Anim: anims\dartnew\standstill.jan: loaded (1 frames latency) Anim: anims\dartnew\pack\packbounce_lf_rt.jan: loaded (1 frames latency) Anim: anims\dartnew\pack\packbounce_up_dn.jan: loaded (1 frames latency) Anim: anims\dartnew\helmet\darthelmetdefpose.jan: loaded (1 frames latency) 1: 1 (number) 1: 1 (number) STUBBED: This is probably wrong at GetDt (/home/icculus/projects/psychonauts/Source/CommonLibs/DFUtil/Profiler.cpp:181) STUBBED: set specular highlights at setSpecularEnable (/home/icculus/projects/psychonauts/Source/CommonLibs/DFGraphics/Renderer.cpp:2035) Anim: anims\dartnew\trnrtcycle.jan: loaded (1 frames latency) Anim: anims\dartnew\run.jan: loaded (1 frames latency) Anim: anims\dartnew\walk.jan: loaded (1 frames latency) Anim: anims\thought_bubble\bubbledoublejump.jan: loaded (1 frames latency) Anim: anims\dartnew\longjump.jan: loaded (1 frames latency) Anim: anims\menubrain\door1crack.jan: loaded (1 frames latency) Anim: anims\menubrain\door1crackedidle.jan: loaded (1 frames latency) Anim: anims\menubrain\door1closedidle.jan: loaded (1 frames latency) Anim: anims\dartnew\180.jan: loaded (1 frames latency) Anim: anims\menubrain\door3crack.jan: loaded (1 frames latency) Anim: anims\menubrain\door3crackedidle.jan: loaded (1 frames latency) Anim: anims\menubrain\door3closedidle.jan: loaded (1 frames latency) Anim: anims\dartnew\railslide45angle.jan: loaded (1 frames latency) Anim: anims\dartnew\railslideflat.jan: loaded (1 frames latency) Anim: anims\dartnew\trnlfcycle.jan: loaded (1 frames latency) WARN: (none(-1) SetNewAction LevelScript: no string passed Anim: anims\dartnew\mainmenu_jump.jan: loaded (1 frames latency) Anim: anims\menubrain\door1open.jan: loaded (1 frames latency) ERROR: Assert in /home/icculus/projects/psychonauts/Source/game/luatest/../../CommonLibs/Include/../DFGraphics/Color.h, line 96 v.x >= 0.0f && v.x <= 1.0f && v.y >= 0.0f && v.y <= 1.0f && v.z >= 0.0f && v.z <= 1.0f && v.w >= 0.0f && v.w <= 1.0f Encountered Error: Psychonauts has encountered an error /home/icculus/projects/psychonauts/Source/game/luatest/../../CommonLibs/Include/../DFGraphics/Color.h, line 96 v.x >= 0.0f && v.x <= 1.0f && v.y >= 0.0f && v.y <= 1.0f && v.z >= 0.0f && v.z <= 1.0f && v.w >= 0.0f && v.w <= 1.0f Please contact technical support at http://www.doublefine.com. I am currently using Bumblebee for hybrid graphics, if that helps in any way.

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• Best way to load application settings

  - by enzom83

  A simple way to keep the settings of a Java application is represented by a text file with ".properties" extension containing the identifier of each setting associated with a specific value (this value may be a number, string, date, etc..). C# uses a similar approach, but the text file must be named "App.config". In both cases, in source code you must initialize a specific class for reading settings: this class has a method that returns the value (as string) associated with the specified setting identifier. // Java example Properties config = new Properties(); config.load(...); String valueStr = config.getProperty("listening-port"); // ... // C# example NameValueCollection setting = ConfigurationManager.AppSettings; string valueStr = setting["listening-port"]; // ... In both cases we should parse strings loaded from the configuration file and assign the ??converted values to the related typed objects (parsing errors could occur during this phase). After the parsing step, we must check that the setting values ??belong to a specific domain of validity: for example, the maximum size of a queue should be a positive value, some values ??may be related (example: min < max), and so on. Suppose that the application should load the settings as soon as it starts: in other words, the first operation performed by the application is to load the settings. Any invalid values for the settings ??must be replaced automatically with default values??: if this happens to a group of related settings, those settings are all set with default values. The easiest way to perform these operations is to create a method that first parses all the settings, then checks the loaded values ??and finally sets any default values??. However maintenance is difficult if you use this approach: as the number of settings increases while developing the application, it becomes increasingly difficult to update the code. In order to solve this problem, I had thought of using the Template Method pattern, as follows. public abstract class Setting { protected abstract bool TryParseValues(); protected abstract bool CheckValues(); public abstract void SetDefaultValues(); /// <summary> /// Template Method /// </summary> public bool TrySetValuesOrDefault() { if (!TryParseValues() || !CheckValues()) { // parsing error or domain error SetDefaultValues(); return false; } return true; } } public class RangeSetting : Setting { private string minStr, maxStr; private byte min, max; public RangeSetting(string minStr, maxStr) { this.minStr = minStr; this.maxStr = maxStr; } protected override bool TryParseValues() { return (byte.TryParse(minStr, out min) && byte.TryParse(maxStr, out max)); } protected override bool CheckValues() { return (0 < min && min < max); } public override void SetDefaultValues() { min = 5; max = 10; } } The problem is that in this way we need to create a new class for each setting, even for a single value. Are there other solutions to this kind of problem? In summary: Easy maintenance: for example, the addition of one or more parameters. Extensibility: a first version of the application could read a single configuration file, but later versions may give the possibility of a multi-user setup (admin sets up a basic configuration, users can set only certain settings, etc..). Object oriented design.

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