Hi sasundar.

IIUC, The storage that is being imported is a backup that was generated by other process than VDSM? 

If that is the case, the files inside might have other user as an owner, which might cause permission problems to VDSM while trying to write to it.

Can you try changing the owner back to VDSM and try importing again?

Please let us know if that did the trick.

Thanks, Amit.

On Wed, Apr 20, 2016 at 12:42 PM, SATHEESARAN <sasundar@redhat.com> wrote:

Hi All,

I was testing the gluster geo-replication on RHEV storage domain backed by gluster volume.
In this case, storage domain ( data domain ) was created with gluster replica 3 volume.

The VMs additional disks are carved out from this storage domain.

Now I have geo-replicated[1] the gluster volume to the remote volume.
When I try importing this storage domain in another RHEVM instance, it fails with error "internal engine error"
 I see the following error in engine.log

<snip>
2016-04-20 05:13:47,685 ERROR [org.ovirt.engine.core.vdsbroker.irsbroker.DetachStorageDomainVDSCommand] (ajp-/127.0.0.1:8702-3) [20f6ea4c] Failed in 'DetachStorageDomainVDS' method
2016-04-20 05:13:47,708 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (ajp-/127.0.0.1:8702-3) [20f6ea4c] Correlation ID: null, Call Stack: null, Custom Event ID: -1, Message: VDSM command failed: Cannot acquire host id: (u'89061d19-fb76-47c9-a4aa-22b0062b769e', SanlockException(-262, 'Sanlock lockspace add failure', 'Sanlock exception'))
2016-04-20 05:13:47,708 INFO [org.ovirt.engine.core.vdsbroker.irsbroker.DetachStorageDomainVDSCommand] (ajp-/127.0.0.1:8702-3) [20f6ea4c] Command 'org.ovirt.engine.core.vdsbroker.irsbroker.DetachStorageDomainVDSCommand' return value 'StatusOnlyReturnForXmlRpc [status=StatusForXmlRpc [code=661, message=Cannot acquire host id: (u'89061d19-fb76-47c9-a4aa-22b0062b769e', SanlockException(-262, 'Sanlock lockspace add failure', 'Sanlock exception'))]]'
</snip>

The complete logs are available in the fpaste[2]
Attaching the part of vdsm log to this mail

[1] - geo-replication is the feature in glusterfs where the contents of volume are asynchronously replicated in remote volume.
This is used for disaster-recovery workflow

[2] - https://paste.fedoraproject.org/357701/11448771/

Thanks,
Satheesaran S

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