Re: cluster not fencing after filesystem failure

[Robert Jacobson <Robert.C.Jacobson@xxxxxxxx>]

Actually it does look like the failed node was fenced by the other node:

Apr 25 02:51:46 fenced fencing node sdo-dds-nfsnode2.dds.sdo
Apr 25 02:52:39 fenced fence sdo-dds-nfsnode2.dds.sdo success

However, even after fencing, the working node (sdo-dds-nfsnode1) did not resume the HA_nfs service.  The service was in a failed state:

[root@sdo-dds-nfsnode1 log]# clustat
Cluster Status for ddsnfs @ Sat Apr 25 03:45:11 2015
Member Status: Quorate

 Member Name                                                   ID   Status
 ------ ----                                                   ---- ------
 sdo-dds-nfsnode1.dds.sdo                                          1 Online, Local, rgmanager
 sdo-dds-nfsnode2.dds.sdo                                          2 Online, rgmanager

 Service Name                                         Owner (Last)                                         State
 ------- ----                                         ----- ------                                         -----
 service:HA_nfs                                       (sdo-dds-nfsnode2.dds.sdo)                           failed



On 2015-04-29 11:31 AM, Vasil Valchev wrote:

Hi,

You can check in the log for "fenced" messages, if it tries to fence the node at all. Also for "cman".

Is your cluster hanged after a node failure? That would indicate the fencing didn't succeed for some reason.

   >I've tested fencing from the command line and it works:
   >fence_vmware_soap --ip 192.168.50.9 --username ddsfence --password

   >secret -z --action reboot -U  "423d288c-03ff-74bf-9a4f-bf661f8ed87b"

You can also test fencing with "fence_node <node-to-be-fenced>" - that way it is tested with the exact arguments from the cluster.conf and you can see if it works or not.

BR,

Vasil

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Robert Jacobson               Robert.C.Jacobson@xxxxxxxx
Lead System Admin       Solar Dynamics Observatory (SDO)
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