[AMaViS-user] hung child processes

I've been using amavisd-new with postfix for several years with no
problems until this new installation I just setup. There are now two
problems, that are probably inter-related.

Problem 1: after an 'amavisd reload' or 'amavisd stop' command, not
all child processes die. The main server thread exits and some children
may exit, but often one or more children hang around. Example:

[root@filter2 ~]# ps ax |grep amavisd
30170 ? Ss 0:13 amavisd (master)
31249 ? R 876:43 amavisd (ch4-31249-04)
817 ? S 0:06 amavisd (ch6-avail)
916 ? S 0:03 amavisd (ch4-avail)
930 ? S 0:01 amavisd (ch4-avail)
934 ? S 0:01 amavisd (ch4-avail)
936 ? S 0:01 amavisd (ch3-avail)
937 ? S 0:00 amavisd (ch2-avail)
943 ? S 0:01 amavisd (ch2-avail)

[root@filter2 ~]# amavisd reload
Daemon [30170] terminated by SIGTERM, waiting for dust to settle...
becoming a new daemon...
[root@filter2 ~]# ps ax |grep amavisd
31249 ? R 877:28 amavisd (ch4-31249-04)
989 ? Ss 0:03 amavisd (master)
991 ? R 0:00 amavisd (ch1-00991-01)
992 ? S 0:00 amavisd (virgin child)
993 ? S 0:00 amavisd (virgin child)
994 ? S 0:00 amavisd (virgin child)
995 ? S 0:00 amavisd (virgin child)
996 ? S 0:00 amavisd (virgin child)
997 ? S 0:00 amavisd (virgin child)
998 ? S 0:00 amavisd (virgin child)

Note that 31249 is still hanging around. A manual 'kill -TERM' will not
make it go away. I have to use 'kill -9' to zap it.

Problem 2: Sometimes, but not always, after an 'amavisd reload', the
communications between amavisd and postfix get hosed. The amavisd
process list will show the master and all virgin children and the
mail logs will show postfix unable to connect to the content filter
on 127.0.0.1:10025. I can manually telnet to 127.0.0.1:10025 and get
a prompt from amavisd. A 'postfix stop; postfix start' clears up
this problem.

The content filter in postfix is configured for smtp-filter on
127.0.0.1:10025 with the other end smtpd on 127.0.0.1:10026.

Software versions are:
amavisd-new-2.4.3 (also happened with 2.4.2)
postfix-2.3.3
perl-5.8.8
spamassassin-3.1.7
clamav-0.88.5

I looked in the mailing list archives and the FAQs, etc., and didn't
find anything that described this particular problem. Has anyone seen
anything similar? If you think it might be a postfix problem, let me
know and I can repost the message on that list.

-Bill Randle



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