Apache process takes HIGH cpu

[brian_31]

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

[Helen French]

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.

[brian_31]

Yes, we have all the latest patches.

Thanks

brian

[Fabio Ettore]

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

[Helen French]

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

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

[W.C. Epperson]

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.

[Steven E. Protter]

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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