[ovirt-users] [Gluster-users] open error -13 = sanlock

[Nir Soffer]

On Thu, Mar 3, 2016 at 11:23 AM, paf1 at email.cz <paf1 at email.cz> wrote:

> This is replica 2, only , with following settings
>

Replica 2 is not supported. Even if you "fix" this now, you will have the
same issue
soon.


>
> Options Reconfigured:
> performance.quick-read: off
> performance.read-ahead: off
> performance.io-cache: off
> performance.stat-prefetch: off
> cluster.eager-lock: enable
> network.remote-dio: enable
> cluster.quorum-type: fixed
> cluster.server-quorum-type: none
> storage.owner-uid: 36
> storage.owner-gid: 36
> cluster.quorum-count: 1
> cluster.self-heal-daemon: enable
>
> If I'll create "ids" file manually (  eg. " sanlock direct init -s
> 3c34ad63-6c66-4e23-ab46-084f3d70b147:0:/STORAGES/g1r5p3/GFS/3c34ad63-6c66-4e23-ab46-084f3d70b147/dom_md/ids:0
> " ) on both bricks,
> vdsm is writing only to half of them ( that with 2 links = correct )
> "ids" file has correct permittions, owner, size  on both bricks.
> brick 1:  -rw-rw---- 1 vdsm kvm 1048576  2. bře 18.56
> /STORAGES/g1r5p3/GFS/3c34ad63-6c66-4e23-ab46-084f3d70b147/dom_md/ids - not
> updated
> brick 2:  -rw-rw---- 2 vdsm kvm 1048576  3. bře 10.16
> /STORAGES/g1r5p3/GFS/3c34ad63-6c66-4e23-ab46-084f3d70b147/dom_md/ids - is
> continually updated
>
> What happens when I'll restart vdsm ? Will oVirt storages go to "disable "
> state ??? = disconnect VMs storages ?
>

 Nothing will happen, the vms will continue to run normally.

On block storage, stopping vdsm will prevent automatic extending of vm disks
when the disk become too full, but on file based storage (like gluster)
there is no issue.


>
> regs.Pa.
>
>
> On 3.3.2016 02:02, Ravishankar N wrote:
>
> On 03/03/2016 12:43 AM, Nir Soffer wrote:
>
> PS:  # find /STORAGES -samefile
>> /STORAGES/g1r5p3/GFS/3c34ad63-6c66-4e23-ab46-084f3d70b147/dom_md/ids -print
>> /STORAGES/g1r5p3/GFS/3c34ad63-6c66-4e23-ab46-084f3d70b147/dom_md/ids
>> = missing "shadowfile" in " .gluster " dir.
>> How can I fix it ?? - online !
>>
>
> Ravi?
>
> Is this the case in all 3 bricks of the replica?
> BTW, you can just stat the file on the brick and see the link count (it
> must be 2) instead of running the more expensive find command.
>
>
>
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