[ClusterLabs] Corosync+Pacemaker error during failover

[priyanka]

On 2015-10-08 20:52, emmanuel segura wrote:
> please check if you drbd is configured to call fence-handler
> https://drbd.linbit.com/users-guide/s-pacemaker-fencing.html

yes.
>
> 2015-10-08 17:16 GMT+02:00 priyanka <priyanka at cse.iitb.ac.in>:
>> Hi,
>>
>> We are trying to build a HA setup for our servers using DRBD + 
>> Corosync +
>> pacemaker stack.
>>
>> Attached is the configuration file for corosync/pacemaker and drbd.
>>
>> We are getting errors while testing this setup.
>> 1. When we stop corosync on Master machine say server1(lock), it is
>> Stonith'ed. In this case slave-server2(sher) is promoted to master.
>>    But when server1(lock) reboots res_exportfs_export1 is started on 
>> both
>> the servers and that resource goes into failed state followed by 
>> servers
>> going into unclean state.
>>    Then server1(lock) reboots and server2(sher) is master but in 
>> unclean
>> state. After server1(lock) comes up, server2(sher) is stonith'ed and
>> server1(lock) is slave(the only online node).
>>    When server2(sher) comes up, both the servers are slaves and 
>> resource
>> group(rg_export) is stopped. Then server2(sher) becomes Master and
>> server1(lock) is slave and resource group is started.
>>    At this point configuration becomes stable.
>>
>>
>> PFA logs(syslog) of server2(sher) after it is promoted to master 
>> till it is
>> first rebooted when resource exportfs goes into failed state.
>>
>> Please let us know if the configuration is appropriate. From the 
>> logs we
>> could not figure out exact reason of resource failure.
>> Your comment on this scenario will be very helpful.
>>
>> Thanks,
>> Priyanka
>>
>>
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-- 
Regards,
Priyanka
MTech3 Sysad
IIT Powai