On Tue, 23 Jan 2007 11:31:51 -0600
Oscar Retana <[EMAIL PROTECTED]> wrote:
> BUT yesterday I couldn't find any culprit plug-in. In fact, I
> disabled ALL plug-ins. Basically my qpsmtpd/config/plugins file was
> left to this (for testing):
>
> rcpt_ok
> queue/qmail-queue
>
> Nothing... Then I increased the max limit from 80 to 160, and then to
> 200, but the limit has been constantly reached since yesterday
> 3:00pm. This server has handled about 20 smtp connections for months.
>
> So, I noticed that one (then several) of the "qpsmtpd-forkserver"
> processes had been running for almost half an hour. I know the
> default timeout value is 1200 seconds (20 min), so I changed
> "timeoutsmtpd" and "timeout" to 300 seconds (5min).
>
> ... It doesn't work. I haven't seen in the logs any message about
> dropping a connection due to a timeout. Processes are still alive
> after 30 o 45 min.
[...]
Yes, had that too.. not that many connections, but I've seen running
connections that long. It turned out that some clients where sitting
there and just issuing NOOP every 30s without disconnecting. If you
can, log with LOGDEBUG and see if it's the case for you, too...
alternate solution: pick the connection details and use tcpdump or
similar tools to see what's happening in this connection.
Hanno
