[ClusterLabs] Antw: Re: Antw: Re: Antw: RES: Pacemaker and OCFS2 on stand alone mode

Ulrich Windl Ulrich.Windl at rz.uni-regensburg.de
Tue Jul 12 02:16:29 EDT 2016

>>> Andrei Borzenkov <arvidjaar at gmail.com> schrieb am 12.07.2016 um 07:57 in
Nachricht <578486E3.3030202 at gmail.com>:
> 11.07.2016 09:33, Ulrich Windl пишет:
>>>>> Andrei Borzenkov <arvidjaar at gmail.com> schrieb am 09.07.2016 um 10:17
>> Nachricht <5780B30A.3000901 at gmail.com>:
>>> 08.07.2016 09:11, Ulrich Windl пишет:
>>>>>>> "Carlos Xavier" <cbastos at connection.com.br> schrieb am 07.07.2016 um
>> 18:57 in
>>>> Nachricht <00e901d1d870$ae418000$0ac48000$@com.br>:
>>>>> Tank you for the fast reply
>>>>>> have you configured the stonith and drbd stonith handler?
>>>>> Yes. they were configured.
>>>>> The cluster was running fine for more than 4 years, until we loose one
>> host 
>>>>> by power supply failure.
>>>>> Now I need to access the files on the host that is working.
>>>> Hi,
>>>> MHO: Have you ever tested the configuration? I wonder why the cluster did

>>> not do everything to continue.
>>> Stonith most likely failed if node experience complete power failure. We
>> You could see a message if that were the case; otherwise the cluster
>> assume the node was killed after the stonith timeout.
> I sincerely hope you do not really mean it. If stonith timed out,
> cluster cannot assume absolutely anything and definitely *NOT* that node
> was killed.

What I mean is: there is no "success status" for STONITH; it is assumed that
the node will be down after issuing a successful stonith command. You are
claiming your stonith command was not logging any error, so the cluster will
assume STONITH was successful after a timeout.

>>> were not shown cluster state, so it is just guess; but normally the way
>>> to recover is to manually declare node as down. Although this does it
>>> for pacemaker only; I do not know how to do the same for DRBD (unless
>>> pacemaker somehow forwards this information to it).
>> DRBD has it own timouts (AFAIR).
> That not what I meant.
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