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From Tom Evans <tevans...@googlemail.com>
Subject RE: [users@httpd] Apache memory hog
Date Fri, 03 Apr 2009 13:15:32 GMT
On Fri, 2009-04-03 at 13:58 +0100, Adrian Marsh wrote:
> Hi Andre,
> 
> Thanks for the reply. No its definitely the httpd process.  I see each thread consuming
hundreds of megs of RES memory being used in TOP.  I just restarted it and already each is
consuming:
> 
> 10006 apache    15   0  279m  15m 3160 S  0.0  0.1   0:00.29 httpd
> 10004 apache    15   0  278m  13m 3400 S  0.0  0.1   0:00.05 httpd
> 10007 apache    15   0  278m  13m 3048 S  0.0  0.1   0:00.04 httpd
> 10001 apache    15   0  277m  13m 3456 S  0.0  0.1   0:00.08 httpd
> 10003 apache    15   0  277m  13m 2976 S  0.0  0.1   0:00.10 httpd
> 10002 apache    15   0  277m  13m 3112 S  0.0  0.1   0:00.07 httpd
> 10005 apache    15   0  277m  13m 3080 S  0.0  0.1   0:00.06 httpd
> 10000 apache    15   0  277m  12m 3432 S  0.0  0.1   0:00.51 httpd
> 
> Also, I forgot to mention its 1.5.5 of SVN (1.5.2 had a mod_ bugfix for a memory leak).
> 
> What interests me at the moment is diagnosing which module it is (as others running 1.5.5
don't report this issue).  It's a fairly vanilla httpd setup other than the svn config.
> 
> Adrian
> 

Doesnt look that bad. That 27[789]m reported as SIZE is shared between
the processes, shared pages and the like, and the RES isn't excessive in
my opinion. What does mod_status and mod_server_info say is going on
when you notice the memory starvation?

What precisely did you change with your yum update? Did that change core
packages, like libc etc?

Cheers

Tom


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