On Mar 28, 2011, at 10:55 AM, Christoph Bartoschek wrote:
> Am 28.03.2011 16:30, schrieb Dejan Muhamedagic:
>> Hi,
>>
>> On Mon, Mar 21, 2011 at 11:33:49PM +0100, Christoph Bartoschek wrote:
>>> Hi,
>>>
>>> I am testing a NFS failover setup. During the tests I created a
>>> split-brain situation and now node A thinks it is primary and uptodate
>>> while node B thinks that it is Outdated.
>>>
>>> crm_mon however does not indicate any error to me. Why is this the case?
>>> I expect to see anything that shows me the degraded status. How can this
>>> be fixed?
>>
>> The cluster relies on the RA (in this case drbd) to report any
>> problems. Do you have a monitor operation defined for that
>> resource?
>
> I have the resource defined as:
>
> primitive p_drbd ocf:linbit:drbd \
> params drbd_resource="home-data"
> op monitor interval="15" role="Master" \
> op monitor interval="30" role="Slave"
>
> Is this a correct monitor operation?
Just out of curiosity, you do have ms resource defined?
ms ms_p_drbd p_drbd \
meta master-max="1" master-node-max="1" clone-max="2"
clone-node-max="1" notify="true"
Because if you do and cluster is not aware of the split-brain, drbd RA has a
serious flaw.
Thanks.
Concerned,
Vadym
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