[ovirt-users] ovirt 3.5.2 issues with nodes becoming "Non Operational"

[Chris Liebman]

I may have figured this out.  The systems that "failed" are running the
Oracle "unbreakable" kernel:

3.8.13-98.el6uek.x86_64

The working systems are running the default CentOS 6 2.6 kernel.

and the error from the vdsm.log only show up on the UEK kernel.

    -- Chris




On Wed, Aug 12, 2015 at 9:34 AM, Chris Liebman <chris.l at taboola.com> wrote:

> Hi,
>    I'm new to oVirt and recently built a 10 node ovirt 3.5 DC with shared
> storage using gluster configured as distributed-replicated (replication =
> 2).  Shortly after 7 of the 10 nodes dropped, one at a time over a few
> hours, into "Non Operational" state.  Attempting to activate one of these
> nodes gives the error:  "Failed to connect Host ovirt-node260 to Storage
> Pool LADC-TBX". Attempting to put the node into Maintenance eaves the node
> stuck in "Preparing For maintenance".
>
> When I rebooted one of the nodes I see this in the nodes event list:
>
> "Host ovirt-node269 reports about one of the Active Storage Domains as
> Problematic."
>
> I see many of these errors in the vdsm log from the failed nodes:
>
> Thread-10000::ERROR::2015-08-12
>> 10:01:17,748::__init__::506::jsonrpc.JsonRpcServer::(_serveRequest)
>> Internal server error
>>
>> Traceback (most recent call last):
>>
>>   File "/usr/lib/python2.6/site-packages/yajsonrpc/__init__.py", line
>> 501, in _serveRequest
>>
>>     res = method(**params)
>>
>>   File "/usr/share/vdsm/rpc/Bridge.py", line 267, in _dynamicMethod
>>
>>     result = fn(*methodArgs)
>>
>>   File "/usr/share/vdsm/API.py", line 1330, in getStats
>>
>>     stats.update(self._cif.mom.getKsmStats())
>>
>>   File "/usr/share/vdsm/momIF.py", line 60, in getKsmStats
>>
>>     stats = self._mom.getStatistics()['host']
>>
>>   File "/usr/lib/python2.6/site-packages/mom/MOMFuncs.py", line 75, in
>> getStatistics
>>
>>     host_stats = self.threads['host_monitor'].interrogate().statistics[-1]
>>
>> AttributeError: 'NoneType' object has no attribute 'statistics'
>>
> Any help here is appreciated.
>
>     -- Chris
>
>
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