[ovirt-devel] "Please activate the master Storage Domain first"

[Nir Soffer]

> On 29-04-2015 11:56, Liron Aravot wrote:
> > Can you please attach the engine/vdsm logs from the time the issue
> > occurred?
> > thanks.
> 
> Hi, relevant VDSM logs were published here:
> https://bugzilla.redhat.com/show_bug.cgi?id=1183977
> 
> And engine says "Failed in 'ReconstructMasterVDS' method" because of
> "Cannot acquire host id: (u'ba7be27f-aee5-4436-ae9a-0764f551f9a7',
> SanlockException(5, 'Sanlock lockspace add failure', 'Input/output
> error'))":

If reconstruct master fails, it is expected that the old master will
be restored.

Your probably have storage issues, revealed by sanlock - it reads and write
to all storage domains every 10 seconds, so flaky storage will cause failure
to acquire a host id.

Please attach to the bug these logs:

Hypervisor:
/var/log/sanlock.log
/var/log/messages
/var/log/glusterfs/<glusterhost>:_<volumename>.log

Gluster server:
server logs showing what happened when sanlock failed access the gluster volume.

> How do I specify the dataDict in the vdsClient command?
> 
> I guess it should be something like:
> 
>     vdsClient -s 0 reconstructMaster
>     '00000001-0001-0001-0001-00000000007e' 'Default'
>     'ba7be27f-aee5-4436-ae9a-0764f551f9a7' '[{ domainId:
>     ad08adbc-b3a7-4198-a1cb-4ad70c724454, status: Unknown };{ domainId:
>     15674257-e14a-4693-9b95-cc4bb92aa765, status: Unknown };{ domainId:
>     ba7be27f-aee5-4436-ae9a-0764f551f9a7, status: Unknown };{ domainId:
>     3233144b-7be1-445f-9ea6-6aebbacbb93f, status: Inactive };]'

Looking in cleint/vdsClient.py:920 - it should be:

    ad08adbc-b3a7-4198-a1cb-4ad70c724454=status,15674257-e14a-4693-9b95-cc4bb92aa765=status,...

Where status is the string vdsm expects. You can check what vdsm expects
or what engine is sending.

Nir