Hi Roger, First let me apologize on behalf of the project for the delay in distribution of your post. It appears a few posts got trapped in limbo for about 10 days, and the delay was definitely between Mailman's MTA and mine.
Roger writes: > I inherited a mult-server install of Mailman. > > During a recent upgrade of the servers, I'm realizing the > master-qrunner.pid file is in the 'data' directory which is shared > between the two servers. What version is Mailman? I believe that recent versions put the PID file in the 'lock' directory. On my Debian installation, that directory is /var/lib/mailman/lock, which is actually a symlink to /var/lock/mailman. I suspect this setup is intended to resolve exactly this kind of issue. > I have the lock file set to use the hostname in the name of the lock file. > > Shouldn't the PID file be in a local directory? Yes. You don't want the operation of local processes to be subject to network issues. > the old servers had a cron entry to re-start mailman every night. I'm > wondering if there was flakiness with a shared PID file going on that was > 'fixed' by rebooting mailman nightly. If the name of the host is in the name of the lock file, this should not cause "flakiness" problems because a conflict between the systems. However, in my Debian install, I have both master-qrunner and master-qrunner.<host>.<pid>, hardlinked to the same file which contains the full pathname (in /var/lib/mailman/lock). I think it's more likely that either the whole system including the network was flaky, or that Mailman isn't designed to be robust in a multi-host configuration. It's generally designed to be robust against various failures, so it's probably OK, but "multihost operation with shared filesystem" was not an explicit design criterion. Steve ------------------------------------------------------ Mailman-Users mailing list Mailman-Users@python.org https://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: https://mail.python.org/mailman/options/mailman-users/archive%40jab.org
