SpamAssassin/Perl eating enormous amounts of memory?
sneepre at me.com
Sun Mar 1 21:23:54 PST 2009
After having lots of problems with memory and 7.1/ZFS, I first
switched everything to 64-bit (amd64), and then I had a new problem,
so I eventually gave up and switched back to UFS (saying on amd64
distro/ports), but I'm still having memory issues.
My current one is that SpamAssassin seems to be periodically eating
up all my memory, causing the server to slow to a crawl until the
kernel kills the process and then I have enormous amounts of free
memory. Rinse, repeat. I thought maybe it had something to do with
the fact that I was using multithreaded perl (which I wasn't before I
jumped into 7.1/ZFS), but rebuilding perl (and all its' dependencies)
without threads didn't help.
I have 8GB of physical memory and 16GB of swap memory. Here is a
line from top showing perl taking 21 gigs of memory:
6035 0 1 76 0 21190M 791M pfault 0 1:20 4.69%
The error messages I get when this is happening look like:
pid 6035 (perl5.8.9), uid 1030, was killed: out of swap space
Obviously I have a memory leak somewhere, but I can't tell where. I
upgraded to the latest port (synced and compiled today). I spent
the day doing the "portupgrade -f R r p5-Mail-SpamAssassin" to make
sure everything was rebuilt. But alas, the problem persists.
Has anyone heard of this? Or any pointers on what I can do to figure
out what is causing it?
Your advice is much appreciated.
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