Bugs item #670535, was opened at 2003-01-18 22:04 Message generated for change (Comment added) made by bwarsaw You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=100103&aid=670535&group_id=103 Category: mail delivery Group: 2.1 (stable)

Status: Pending Resolution: None Priority: 8 Submitted By: David Gibbs (midrangeman) Assigned to: Nobody/Anonymous (nobody) Summary: qrunner stops for no apparent reason

Initial Comment: About once every day or so, qrunner will stop for no apparent reason. The qrunner log file has the following ... Jan 18 14:29:09 2003 (3443) IncomingRunner qrunner caught SIGTERM. Stopping. Jan 18 14:29:09 2003 (3443) IncomingRunner qrunner exiting. Jan 18 14:29:09 2003 (3441) BounceRunner qrunner caught SIGTERM. Stopping. Jan 18 14:29:09 2003 (3441) BounceRunner qrunner exiting. Jan 18 14:29:09 2003 (3445) OutgoingRunner qrunner caught SIGTERM. Stopping. Jan 18 14:29:09 2003 (3445) OutgoingRunner qrunner exiting. Jan 18 14:29:09 2003 (3442) CommandRunner qrunner caught SIGTERM. Stopping. Jan 18 14:29:09 2003 (3442) CommandRunner qrunner exiting. Jan 18 14:29:09 2003 (3446) VirginRunner qrunner caught SIGTERM. Stopping. Jan 18 14:29:09 2003 (3446) VirginRunner qrunner exiting. Jan 18 14:29:09 2003 (3440) ArchRunner qrunner caught SIGTERM. Stopping. Jan 18 14:29:09 2003 (3440) ArchRunner qrunner exiting. Jan 18 14:29:10 2003 (3444) NewsRunner qrunner caught SIGTERM. Stopping. Jan 18 14:29:12 2003 (3444) NewsRunner qrunner exiting. No other log has any indication of what might be happening. Is there a way to increase the logging somewhere so the cause can be identified? ----------------------------------------------------------------------

Comment By: Barry A. Warsaw (bwarsaw) Date: 2003-04-19 16:51

Message: Logged In: YES user_id=12800 David, have you been able to dig up more information about this problem? I'm moving this to Pending as we have no clue why it's happening for you and cannot reproduce it on any systems we have available to us. ---------------------------------------------------------------------- Comment By: Thomas Wouters (twouters) Date: 2003-03-21 19:54 Message: Logged In: YES user_id=34209 No, having multiple versions of Python should not be causing this. Nor should the SIGALRM handler being triggered cause it, unless something is seriously broken in your setup -- but we've already been there. The only way to see if a SIGTERM is actually being delivered is running the processes under strace or gdb, but this seriously disrupts regular operation. There is no way that i know of to find out where a signal is coming from, once you find out that it really is a signal. If it *isn't* a real signal, I would start looking at libc bugs and other platform bugs. You can try upgrading Python to 2.2.2 (the latest bugfix release) but I would be very suprised if it fixed your problem. RedHat does not have a great reputation for stability, so be sure to check for any RedHat updates. ---------------------------------------------------------------------- Comment By: David Gibbs (midrangeman) Date: 2003-03-17 12:44 Message: Logged In: YES user_id=86339 Additional environment details: Redhat Linux 8.0, uname = "Linux xxx.midrange.com 2.4.18- 26.8.0 #1 Mon Feb 24 10:21:42 EST 2003 i686 i686 i386 GNU/Linux" Python: 2.2.1 CPU: P4 2.4ghz, 512mb RAM Dunno if this makes a difference, but I have the following directories ... /usr/lib/python1.5 /usr/lib/python2.1 /usr/lib/python2.2 Any chance there is a conflict? ---------------------------------------------------------------------- Comment By: David Gibbs (midrangeman) Date: 2003-01-24 13:31 Message: Logged In: YES user_id=86339 I added some debug code to mailmanctl and found out that the sigalarm handler is firing just before the qrunners are terminating. ---------------------------------------------------------------------- Comment By: David Gibbs (midrangeman) Date: 2003-01-22 16:31 Message: Logged In: YES user_id=86339 After some further research, QRUNNER seems to stop after exactly 24 hours of operation. That is, 24 hours after qrunner starts, it ends as if someone killed it with SIGTERM. I know for a fact that nobody is actually doing this ... and no process on my system should be aware of the fact that qrunner is actually running. I will not discount the possiblity that this is an environmental factor, but it seems to me that a daemon process should not be affected by environmental factors. ---------------------------------------------------------------------- Comment By: Barry A. Warsaw (bwarsaw) Date: 2003-01-19 17:46 Message: Logged In: YES user_id=12800 I'm not sure what kind of logging would help. Some process somewhere is SIGTERMing the mailmanctl controller process. There's no way to know where a signal is coming from, so I'm not sure what more you could do in mailmanctl. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=100103&aid=670535&group_id=103