[CentOS] Memory Leak with stock Squirrelmail, PHP, mysql, apache since 5.3
linux at sitevision.com
Fri Apr 24 19:27:34 UTC 2009
James Wilson wrote:
> Since upgrading to 5.3 we have noticed that overnight all 4GB of
> physical RAM and all 4GB of swap is eaten and the web service
> unresponsive. We can still SSH into the machine and restart Apache.
> This rectifies the issue. These are production boxes and subject to
> numerous connections, we are trying to isolate the trigger. However,
> the exact same configuration and applications being served under 5.2
> exhibit no issue.
> I suspect it may be related to this bug, logged with the upstream:
I was experiencing similar problems with an x86_64 server after
upgrading to 5.3. While MySQL, Apache and PHP are installed SquirrelMail
was not, nor mail services beyond daily logwatch emails.
Since Apache was serving internal-only sites needed by only a few people
in my department, I found that de-tuning the prefork section httpd.conf
was an acceptable workaround.
None of the other servers I have upgraded to 5.3 have exhibited this
issue, but they are all i386 web servers only and do not mysql
installed. Although they do handle 2-3 orders of magnitude more requests
than the x86_64 server does.
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