Re: [AMaViS-user] PID File Issues

* Manish Kathuria <mkathuria@tuxtechnologies.co.in> [2008-04-28 12:46:31 +0530]:

> On Fri, 2008-04-25 at 21:41 +0200, Mark Martinec wrote:
> > Manish,
> >
> > > I am running amavisd-new 2.54. along with postfix on CentOS 5.1 on a
> > > mail server. There was an unclean shutdown of the mail server and when
> > > the system was started again, amavisd failed to start. Upon restarting
> > > amavisd, the following error was generated in the logs:
> > >
> > > (!)Net::Server: 2008/04/25-09:14:18 Pid_file already exists for running
> > > process (2440)... aborting\n\n at line 277 in
> > > file /usr/lib/perl5/vendor_perl/5.8.8/Net/Server.pm
> > >
> > > The problem was solved by deleting the files /var/amavis/amavisd.lock
> > > and /var/amavis/amavisd.pid and restarting amavisd. What needs to be
> > > done so that this problem does not happen again ?
> >
> > Which version of Net::Server ? Are you sure the process 2440
> > really did not exist (perhaps it existed as a result of starting
> > amavisd twice by mistake) ? Please see subroutine check_pid_file
> > in /usr/lib/perl5/vendor_perl/5.8.8/Net/Server/Daemonize.pm,
> > it does try to check if a process whose ID was found in a pid file
> > does exist, and it aborts only if finding a process is possible
> > and the process was found. But I see the procedure is Linux-specific
> > for no good reason - the kill 0 would do the same job more portably.
>
> I think I need to restate the problem and sort out the confusion. It
> happened again during the weekend. There was an unclean shutdown and
> amavisd did not start on its own automatically when the system was
> restarted. I have checked the logs and I could not find any error
> messages but since amavisd did not start, postfix stopped accepting and
> queueing mails, which was indicated in the mail log. However this time,
> amavisd could be started manually without deleting any .pid or .lock
> files. So my presumption that amavisd could not automatically start
> because of presence or .pid or .lock files was probably not correct.
>
> I am not being able to identify the reason because of which amavisd is
> not getting automatically started when the system is booted after an
> unclean shutdown. I have dealt with a number of amavisd installations
> but have never faced this problem before. What needs to be done to
> ensure that amavisd starts automatically even after an unclean system
> shutdown or crash ?

The rc script(s) that are responsible for launching amavisd-new should do so
even if recovering from an unclean shutdown. Can you confirm that
amavisd-new starts on boot after a clean shutdown? This might be an issue
particular to your OS/setup than a fault in amavisd-new.

--
Sahil Tandon <sahil@tandon.net>

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