topic Re: Apache process takes HIGH cpu in Operating System - HP-UX

Apache process takes HIGH cpu

brian_31 — Tue, 27 Jan 2004 08:42:31 GMT

Team:

WE are experiencing problem with the hanging child process (httpd)causing CPU hog. This seems to occur randomly. Have anyone faced these issues and what could be the fix. We run 11.0 on a 2cpu on L class.

Thanks
brian

Re: Apache process takes HIGH cpu

Helen French — Tue, 27 Jan 2004 09:32:13 GMT

Did you look in to the security bulletins released on Apache web servers? Did you install the latest recommended version and it's patches? If not, try that first.

I would also check if some web based process is causing this. Check your process list with Glance.

Re: Apache process takes HIGH cpu

brian_31 — Tue, 27 Jan 2004 09:45:09 GMT

Yes, we have all the latest patches.

Thanks

brian

Re: Apache process takes HIGH cpu

Fabio Ettore — Tue, 27 Jan 2004 09:53:34 GMT

Hi Brian,

what is the Apache version about your system?
Look the following link:

http://nagoya.apache.org/bugzilla/show_bug.cgi?id=15380

I hope this helps you.

Best regards,
Ettore

Re: Apache process takes HIGH cpu

Helen French — Tue, 27 Jan 2004 09:55:18 GMT

Check if this document is helpful (TKB #MJFKBRC00011576):

http://www2.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000067342524

Re: Apache process takes HIGH cpu

W.C. Epperson — Wed, 28 Jan 2004 09:58:20 GMT

Last spring there was a bug identified in Oracle 9IAS Apache/Tomcat components (#2771687) such that a RST issued for a nonexistent SSL connection during would cause httpd processes to spin out of control. The flaw was in the core code for Tomcat, as I recall.

Re: Apache process takes HIGH cpu

Steven E. Protter — Wed, 28 Jan 2004 10:01:49 GMT

Make sure apache is patched:

take some perofmrance data and look for issues in the infrastructure/kernel shared memory that might effect apache.

Script attached.

Apache is a big user of shared memory, there needs to be enough.

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