-- Am 03/21/16 21:23:12 +0100 schrieb Heiko Schlittermann:
Hi,
(please no CC offlist, I'm here.)
sorry for that.
Michael Fischer v. Mollard <[email protected]> (Mo 21 Mär 2016
18:03:49 CET):
Do you have any traces of the delivery attempt of 29077/29079 from
the remote site? Did the mail get through twice?
Can you use a `strace -p` on the delivery and on the transport process
next time?
other PIDs, but same situation:
# strace -p 18619
Process 18619 attached
select(8, [7], NULL, NULL, {17, 252791}) = 0 (Timeout)
wait4(-1, 0x7ffe6b2aef8c, WNOHANG, NULL) = 0
select(8, [7], NULL, NULL, {60, 0}) = 0 (Timeout)
wait4(-1, 0x7ffe6b2aef8c, WNOHANG, NULL) = 0
select(8, [7], NULL, NULL, {60, 0}) = 0 (Timeout)
wait4(-1, 0x7ffe6b2aef8c, WNOHANG, NULL) = 0
select(8, [7], NULL, NULL, {60, 0}^CProcess 18619 detached
<detached ...>
with
exim4 18619 root 0u CHR 1,3 0t0
1034 /dev/null
exim4 18619 root 1u CHR 1,3 0t0
1034 /dev/null
exim4 18619 root 2u CHR 1,3 0t0
1034 /dev/null
exim4 18619 root 3r CHR 1,9 0t0
1039 /dev/urandom
exim4 18619 root 4uw REG 253,0 134167
1795 /var/spool/exim4/input/1aiHUQ-0004q8-Lq-D
exim4 18619 root 5w REG 253,0 176
1649 /var/spool/exim4/msglog/1aiHUQ-0004q8-Lq
exim4 18619 root 6w REG 253,0 0
1827 /var/spool/exim4/input/1aiHUQ-0004q8-Lq-J
exim4 18619 root 7r FIFO 0,8 0t0
98772157 pipe
and
# strace -p 18622
Process 18622 attached
recvfrom(7, ^CProcess 18622 detached
<detached ...>
with no changes waiting for tcp traffic:
exim4 18622 Debian-exim 0u CHR 1,3 0t0
1034 /dev/null
exim4 18622 Debian-exim 1u CHR 1,3 0t0
1034 /dev/null
exim4 18622 Debian-exim 2u CHR 1,3 0t0
1034 /dev/null
exim4 18622 Debian-exim 3r CHR 1,9 0t0
1039 /dev/urandom
exim4 18622 Debian-exim 4u REG 253,0 134167
1795 /var/spool/exim4/input/1aiHUQ-0004q8-Lq-D
exim4 18622 Debian-exim 5w REG 253,0 176
1649 /var/spool/exim4/msglog/1aiHUQ-0004q8-Lq
exim4 18622 Debian-exim 6w REG 253,0 0
1827 /var/spool/exim4/input/1aiHUQ-0004q8-Lq-J
exim4 18622 Debian-exim 7u IPv4 98772160 0t0
TCP XXXX:41992->YYYY:smtp (ESTABLISHED)
exim4 18622 Debian-exim 8w FIFO 0,8 0t0
98772157 pipe
I'm asking this, because some time ago we observed communication
problems between the smtp transport process and its parent (here 29079
talking back to 29077). If I remember well, the trigger were a long list
of recipients plus some lengthy TLS information.
I think, for us it resulted in crashing deliveries, but I can imagine
hanging deliveries too.
TLS might be a good point. On the receiving side is see a bunch off
30977 handling TLS incoming connection from XXX
so I'll try to disable TLS between the external and internal gateways. I'll
post whether this changed the situation.
Regards
Michael
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