Apache Optimazation ???

Portal Home > Knowledgebase > Articles Database > Apache Optimazation ???

Posted by map007, 10-13-2009, 07:28 AM
Hi, I am facing problem regarding my site. I have dedicated server with WHM/cPanel, i have integrated tomcat with apache , the apache processes are too high aroung 1200-1400, So please guide me howto optimize my apache for better performance. root@trick [/]# ps aux | grep -c httpd 1403 root@trick [/]# ps aux | grep -c mysql 3 root@trick [/l]# free -m total used free shared buffers cached Mem: 4053 3408 645 0 220 1890 -/+ buffers/cache: 1297 2756 Swap: 4094 0 4094 --------------------------------------------- KeepAlive On MaxKeepAliveRequests 100 KeepAliveTimeout 15 StartServers 10 MinSpareServers 10 MaxSpareServers 20 ServerLimit 1000 MaxClients 600 MaxRequestsPerChild 0 ------------------------------------------------ Thank you.
Posted by benthetech4u, 10-13-2009, 07:55 AM
Hope this page helps you. http://www.devside.net/articles/apac...ormance-tuning
Posted by inspiron, 10-13-2009, 08:29 AM
Also try to check using the command "netstat -anp | grep 80 this will show the process and the IPs connected to the server.
Posted by assistanz247, 10-13-2009, 09:04 AM
You need to increase your server's hardware capacity. Apache with Tomcat needs more hardware, with a normal hardware you can have around 100 tomcat connections. If you have more than 100 connections from tomcat then check your hardware.
Posted by p-root, 10-16-2009, 08:58 AM
Hi, Our server has Intel(R) Xeon(R) CPU X3230 @ 2.66GHz Quad core processor with 4GB of RAM,so there is no need to upgrade server hardware,also earlier our Tomcat and Apache was run perfectly or faster more then 2 times in dual core processor with 2GB RAM ,so please guide me how to optimize.. Thanks
Posted by barry[CoffeeSprout], 10-20-2009, 09:50 AM
assistanz, I've run Tomcat instances way over 250 connections concurrent on lesser hardware without problem. First of all I notice a few things: 1 You have KeepAlive on (is this required?) 2 You are using prefork, not worker (worker is more efficient and will spawn less processes) It could also be that you are just seeing a large influx of visitors for some reason, along with the KeepAlive this may be keeping your processes open way too long.
Posted by p-root, 10-22-2009, 04:54 AM
Hi, Thanks..Bvs. please help me with your second option, we are using prefork,how can & where we use worker instead of prefork,so please do needful... Thanks
Posted by barry[CoffeeSprout], 10-22-2009, 05:09 AM
Hi, First of all, backup every file that you touch; I'm not responsible if you hose your system :-) I'm going to assume you use CentOS (which I use as well) and are using the default apache (not sure if cPanel replaces it) mod_jk is by default thread safe, so you can use the worker MPM stop apache: sudo service httpd stop To enable in CentOS you must edit: /etc/sysconfig/httpd It will contain the following: # # The default processing model (MPM) is the process-based # 'prefork' model. A thread-based model, 'worker', is also # available, but does not work with some modules (such as PHP). # The service must be stopped before changing this variable. # #HTTPD=/usr/sbin/httpd.worker Just uncomment this line. You can then start apache again and see what kind of problems it sees. Some modules are not thread safe (mod_php for example) and apache will complain loudly in that case. If some of these modules are not needed you can turn them off by editing them out in httpd.conf