On Mon, Mar 20, 2006, Bernhard Reiter wrote:
>Am Montag, 20. März 2006 13:32 schrieb Bernhard Reiter:
>> Using OpenPKG 2.5
>
>> b) postfix
>> /kolab/sbin/postfix start
>> failed, because of an old master.pid (without process).
>> The message of postfix-scripts did not end up in the logs
>> and openpkg did not fail.
>
>This was more complicated then I have thought.
>On a start attempt, OpenPKG will do
> rcService postfix enable yes || exit 0
> rcService postfix active yes && exit 0
> /kolab/sbin/postfix start
>
>The "rcService postfix active yes" line will call rc.kolab status
>which again calls master -t to test if the postfix is running or not.
>For whatever reasons "master -t" did return that postfix was still active,
>this probably was the stale lock. So the script of OpenPKG just
>did not try to restart postfix without any error message.
>
>Note that /kolab/sbin/postfix start would
>end up running /kolab/sbin/postfix-script
>which would have done the same test,
>but would have issued an error message.
>
>The main problem with this approach
>is that a non-negative return code of "master -t"
>cannot be used as a test that postfix is active.
>It means: postfix is active or the application is broken.
>
>In case of the special situation described,
>OpenPKG behaves badly.
>There does not seem to be an easy remedy.
>I did not discover a test if postfix is actually running,
>so the line cannot easily be exchanged.
>Maybe looking for "master" in the process table in addition to master -t,
>would make this test more robust.
Perhaps it would be better to use the standard tests
on %{l_prefix}/var/postfix/pid/master.pid instead of the one
calling master -t?
I know there was a problem with using the postgresql native tests
because they didn't detect a stale pid file.
Bill
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