I understand the problem. But till now if i want to use a mode i will recompile apache only :(. So am not sure how to do it without recompiling!
Regards Prasanna Ram On Sun, Jun 7, 2009 at 11:54 AM, BipinDas-Gmail <bipink...@gmail.com> wrote: > Prasanna, > > > > Thanks for your valuable reply. My Apache was built from binary,so default > MPM is PREFORK. Is there any way to switch > > From prefork to worker without recompiling Apache ? I have found a > way,which is uncomment the “worker” line from the > > /etc/sysconfig/httpd (HTTPD=/usr/sbin/httpd.worker) file. But it causes the > PHP stops its working. > > > > Thanks. > > > > *Greetings ....* > > BipinDas > > +966543680643 > > > > *From:* Prasanna Ram Venkatachalam [mailto:vpra...@gmail.com] > *Sent:* Sunday, June 07, 2009 8:39 AM > *To:* users@httpd.apache.org > *Subject:* Re: [us...@httpd] Good Prefork Configuration for better > performance ?? > > > > Dear BipinDas, Under these loads i would suggest you to try Worker-MPM > model. Because in prefork whatever you do, if you get 500 requests which are > being served *simultaneously*, it would create 500 processes!! Its a one > process per request model. So at higher load you would definitely run out of > resources which is causing your server to hang perhaps. And the details you > have provided are quite normal for your configuration. I get even more than > that in my test scenarios!. The problem might be because of some peak load > times which consumes your resources. > > Also, is there any chances of number of *simultaneous* clients to go above > 251 at peak loads? If so, try increasing that. (though i personally wont > prefer prefork in high load scenarios) > > Regards > Prasanna Ram > > On Sat, Jun 6, 2009 at 8:30 PM, BipinDas-Gmail <bipink...@gmail.com> > wrote: > > Dear Friends. > > > > One of my Webserver running with following configurations. > > Processor : Intel(R) Xeon(R) CPU E5430 @ 2.66GHz > > Memory : 4Giga > > Apache : 2.2.3 (Installed from Binary) > > MPM : Prefork > > > > Some of output from the server is as follows (Almost All Time ….). > > > > ps -ef | grep httpd | wc -l == 45 > > netstat -tn | wc -l == 1221 > > netstat -tn | grep ESTABLISHED | grep 443 | wc -l == 29 > > > > My Prefork configuration is as follows... > > > > <IfModule prefork.c> > > StartServers 8 > > MinSpareServers 5 > > MaxSpareServers 20 > > ServerLimit 251 > > MaxClients 251 > > MaxRequestsPerChild 4000 > > </IfModule> > > > > My problem is sometimes server is shoot up with heavy load and hangs. I > need to restart the Apache to settle down the load to normal. > > This is Moodle installed server. Students uploading Assignments, checking > for timetable, will attend Quiz and online exams. MySQL is > > also running in the same server. I suspect Apache is causing the load > problem. > > > > Please recommend a perfect Prefork configuration on the above scenario. > > > > Thanks in Advance. > > > > *Greetings ....* > > BipinDas > > +966543680643 > > > > >
