[ClusterLabs] KVM RHEL7 cluster

Ondrej Koch ondrej.koch at techlib.cz
Wed May 20 04:48:01 EDT 2015


Logs attached. lva1 lva2 and lva6 are some representative nodes.
Commands used to produce this:
pcs cluster stop
# waiting...
pcs cluster start
# majority of VirtualDomains didn't start... few were on lva1 and one on
lva4
pcs resource cleanup libvirtd-clone
# all VirtualDomains started


On 20.5.2015 05:57, Andrew Beekhof wrote:
> 
>> On 19 May 2015, at 9:59 pm, Ondrej Koch <ondrej.koch at techlib.cz> wrote:
>>
>> Hi,
>> we're trying to build a 6-node KVM virtualization cluster on
>> CentOS7/RHEL7 using GFS2, CLVM and DLM.
>> More or less we were following Red Hat documentation and everything
>> seems to be fine but... We can stop cluster service on a single node and
>> everything migrates to other nodes. However, as soon as that node
>> becomes a cluster member again, every VirtualDomain on every cluster
>> node reboots.
>>
>> We tried to kill clvmd as well, cluster noticed that, reinitialized
>> clvmd and... again every VirtualDomain rebooted.
>> Our cib is attached.
> 
> Logs would be required to say much about this
> 
>>
>> We suspect something about our dependency and/or colocation rules causes
>> that. Could you please inspect and give us some directions?
>>
>> Thanks,
>> Ondrej
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