Wietse:
> No, the error message is:
>
> ? ? fatal: shared lock active/9978637B4A
>
> Where active/9978637B4A is the relative pathname of the
> queue file.
>
> > Mar 30 07:51:30 mailserver postfix/local[24516]:
> fatal: shared lock active/9978637B4A: Resource temporarily
> unavailable
> > Mar 30 07:51:30 mailserver postfix/local[24519]:
> 9978637B4A: to=<recipie...@mydomain.com>,
> relay=local, delay=0.26,
> > Mar 30 07:51:30 mailserver postfix/local[26515]:
> 9978637B4A: to=<recipie...@mydomain.com>,
> relay=local, delay=0.27,
>
> Process 26515 got a shared lock, process 24516 got no lock, and
> process 24519 got a shared lock.
>
> Check your kernel parameters. Perhaps your OS has a very limited
> number of locks available. This may be the result of very cheap
> shared hosting.
Zozime Rakotondrazafy:
> Just to add a bit but important information: postfix is run with
> mailboxes (maildir) on GFS (cluster environment). After some
> tweaks with the cluster configuration, test with ping_pong gives
> a performance of 2000locks/s, I wonder if it's enough for postfix
> with a system of 5000+ user mailboxes...
Now, you should test SHARED locks on the SAME FILE.
Wietse
