We have a problem with qmail-remote connections staying open in the
ESTABLISHED phase for very long periods of time, seemingly indefinitely.
Our server, a very busy mailing list server, then becomes very slow
since the number of functioning qmail-remote processes slowly reduces to
a handful.
This behaviour seems to have started sometime last week. We know of
no change to our current setup (qmail-1.03 on Red Hat Linux 6.2) that
took place then. Our setup hasn't been updated much since June 2000.
There doesn't seem to be anything special about the messages being
sent.
There may be some association between particular mail exchangers and
this problem. It seems to occur after we connect to mail exchangers
at outblaze.com. But if that is true, then the problem "spreads" to
other new connections. That may be a red herring.
Thanks in advance for any help you can offer.
--
Neil Kandalgaonkar, Web Application Developer, ActiveState
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