[Gluster-users] Problem with glusterd locks on gluster 3.6.1

Atin Mukherjee
Wed, 15 Jun 2016 11:31:06 -0000

On 06/15/2016 04:24 PM, B.K.Raghuram wrote:
> Hi,
>
> We're using gluster 3.6.1 and we periodically find that gluster
commands
> fail saying the it could not get the lock on one of the brick machines.
> The logs on that machine then say something like :
>
> [2016-06-15 08:17:03.076119] E
> [glusterd-op-sm.c:3058:glusterd_op_ac_lock] 0-management: Unable to
> acquire lock for vol2

This is a possible case if concurrent volume operations are run. Do you
have any script which checks for volume status on an interval from all
the nodes, if so then this is an expected behavior.
>
> After sometime, glusterd then seems to give up and die..

Do you mean glusterd shuts down or segfaults, if so I am more interested
in analyzing this part. Could you provide us the glusterd log,
cmd_history log file along with core (in case of SEGV) from all the
nodes for the further analysis?

>
> Interestingly, I also find the following line in the beginning of
> etc-glusterfs-glusterd.vol.log and I dont know if this has any
> significance to the issue :
>
> [2016-06-14 06:48:57.282290] I
> [glusterd-store.c:2063:glusterd_restore_op_version] 0-management:
> Detected new install. Setting op-version to maximum : 30600
>
> Any idea what the problem may be?
>
> Thanks,
> -Ram
>
>
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