We have had a couple of instances recently where our mail server became
severely overloaded, with many spamd processes running.  One was on the
21st when dorkslayers.com went down.  The other was yesterday for no
apparent reason.  In each case, we had around 150 spamd processes
running, with 2.5 GB of swap in use on a machine with 250 MB of memory!

Each time I noticed that although there were around 150 spamd processes,
there were only around 3 spamc processes.  How is this possible?
Could the spamc processes have timed out leaving the spamd processes
running?  Or could the mail have been processed and spamd is trying
to do something else such as update the bayes database?

Possibly related, in what way does spamc timeout?  Does it require that
the whole message be processed within the timeout, or just that some
response has happened within the timeout time?  What happens if spamc
starts a spamd process and then times out?  Is the spamd processes
notified that it should quit, or is it just left running?

Tom schulz
Applied Dynamics Intl.
[EMAIL PROTECTED]


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