Using ASSP CVS 2.5.6/17184.
I have a server that pumps about 1800 messages into a queue and exim on that
server makes connections to ASSP to forward the mail. Basically ASSP is the
outgoing mail server.
It get through about 140 messages, at which point the SMTP connections time out
(per exim's logs). I'm not sure the concurrency it generates to do so, but the
connections to the proxy SMTP server it sends to gets to about 40 right away
and then drops off (so I assume that means my concurrent connections about 40)
Meanwhile, ASSP shows:...[all is fine to here]...Jul-07-17 08:27:46
[Main_Thread] Info: unable to detect any running worker for a new connection -
wait (max 30 seconds)...[repeated]...Jul-07-17 08:27:47 [Main_Thread] Info:
unable to detect any running worker for a new connection - wait (max 30
seconds)Jul-07-17 08:27:47 [Main_Thread] Info: ConnectionTransferTimeOut (30
seconds) is now reachedJul-07-17 08:27:47 [Main_Thread] Warning: Main_Thread is
unable to transfer connection to any worker - try again!Jul-07-17 08:27:47
[Main_Thread] Error: Main_Thread is unable to transfer connection to any worker
within 120 seconds - restart ASSP!Jul-07-17 08:27:47 [Main_Thread] Initializing
shutdown sequenceJul-07-17 08:27:47 [Shutdown] Info: removing all SMTP and
Proxy listenersJul-07-17 08:27:47 [Worker_4] Info: shutdown: Worker_4: Cannot
pack NaN with 'C' at sub main::ipNetwork line 11.Jul-07-17 08:27:47 [Worker_3]
Info: shutdown: Worker_3: Cannot pack NaN with 'C' at sub main::ipNetwork line
11.Jul-07-17 08:27:47 [Worker_5] Info: shutdown: Worker_5: Cannot pack NaN with
'C' at sub main::ipNetwork line 11.Jul-07-17 08:27:47 [Worker_3] Worker_3
finishedJul-07-17 08:27:47 [Worker_4] Worker_4 finishedJul-07-17 08:27:47
[Worker_5] Worker_5 finishedJul-07-17 08:27:47 [Worker_2] Info: shutdown:
Worker_2: Cannot pack NaN with 'C' at sub main::ipNetwork line 11.Jul-07-17
08:27:47 [Worker_2] Worker_2 finishedJul-07-17 08:27:47 [Shutdown] Waiting for
all SMTP-Workers to be finishedJul-07-17 08:27:47 [Worker_1] Info: shutdown:
Worker_1: Cannot pack NaN with 'C' at sub main::ipNetwork line 11.
Once ASSP restarts and the retry interval is received, ASSP tries again, makes
it through about 200 messages and then the same outcome.
Of course what it's doing is flooding ASSP with SMTP connections.The host is in
AccetAllMail (yes I know we're not using relayport, but we need to make sure
the SMTP server can handle a flood of connections gracefully)The
maxSMTPSessions is 64 and MaxSMTPipSessions is 15, and given the status of the
workers, I don't think it's hitting those limits.5 NumComWorkers (SMTP
Threads), EnableHighPerformance (off), ThreadCycleTime (3000), IO:Poll
engine.Using a local bind resolver which shows nothing strange.
Any thoughts?
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