[Mailman-Users] Start qrunner on ElCapitan (MacOS X Server)

Mark Sapiro mark at msapiro.net
Wed Oct 19 10:55:04 EDT 2016

On 10/19/2016 02:51 AM, Matthias Schmidt wrote:
> Now I get in the system log:
> com.apple.xpc.launchd[1] (org.mailman): Service only ran for 1 seconds. Pushing respawn out by 9 seconds.
> and after that I get:
> The master qrunner lock could not be acquired because it appears as if another
> master qrunner is already running.
> in mailman’s error log

Because the original master IS still running. The PID in the lockfile
exists. The problem is 'mailmanctl start' forks a watcher process. The
original mailmanctl exits so launchd thinks it only ran for 1 second,
but it's child and all the qrunners are still running.

> after unloading the plist and running mailmanctl -s start again, I get the same error as output.
> When I delete these 2 lock files and run mailmanctl start as sudo all is fine.

All is not fine. You have 2 Mailman instances running. See

I don't know how to set up plist's for launchd. There may be some sort
of daemon option to account for processes that fork a daemon and then exit.

See <https://wiki.list.org/x/4030523> and posts linked therefrom, in
This is for 10.6, and I don't know if 10.11 is different in this respect
or not. I think there is more recent discussion in this list's archives
which you may find by searching at

Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan

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