I have a CentOS 5 server running nginx, httpd and a dozen or so
mongrel instances. Since this morning I've been experiencing a
serious memory leak - about 2G in 2 hours, until the machine needs to
be rebooted. I've tried to answer the question "what changed", and I
can't think of anything on my side...
In top, and related tools, I see no processes growing in size - all I
see is the amount of memory available constantly reducing.
The sort of thing I can think of that fits the evidence would be
something like a process is being created and then dying without
returning the memory to the system.
However, I am unable to see the malloc's, and I can't currently think
of a way to test this theory.
I suspect systemtap may be the tool to use - anyone have experience of
using it in this way, or have a recipe they could point me to?
Any other ideas for troubleshooting and gathering info?
Thanks in advance,
S.
--
Stephen Nelson-Smith
Technical Director
Atalanta Systems Ltd
www.atalanta-systems.com
