[Linux-cluster] Error while doing failover of cluster nodes - Rhel7.2 - Gfs2 over nfs

Dawood Munavar S M dawood.m at msystechnologies.com
Thu May 25 13:22:26 UTC 2017


I have configured a Rhel 7.2 pacemaker cluster and created nfs resources
over gfs2 file system & Mounting of file system is successful on NFS client.

I started I/O on NFS client and when I failover one of the cluster, I see
the below message and the I/O terminates,

05/12/17 20:15:26 Thread:1 System call error:13 - Permission denied (error
in write completion)

05/12/17 20:15:26 Thread:1 Error:12 - I/O error during a write operation
(LBA:0x0507F000 reqSize:524288 retSize:0)

05/12/17 20:15:26 Thread:1 (Context 0) Exiting on critical error(s)!

00:01:30:08: FOPS: 0 IO/S: 14.00      MB/s: 7.00    PEND: 13  CPU: 1

ERR: Total:1 Last:12 Write:1

EXIT: initiating shutdown

Please let me know if this a cluster configuration issue or issue at the
disk layer.

PCS status:

[root at node1-emulex ~]# pcs status

Cluster name: rhelcluster

Stack: corosync

Current DC: node1-emulex (version 1.1.15-11.el7_3.4-e174ec8) - partition
with quorum

Last updated: Fri May 12 09:13:07 2017          Last change: Fri May 12
09:03:02 2017 by root via cibadmin on node1-emulex

2 nodes and 10 resources configured

Online: [ node1-emulex node2-atto ]

Full list of resources:

 scsifencing    (stonith:fence_scsi):   Started node1-emulex

 Clone Set: dlm-clone [dlm]

     Started: [ node1-emulex node2-atto ]

 Clone Set: clvmd-clone [clvmd]

     Started: [ node1-emulex node2-atto ]

 Clone Set: fs-clone [fs]

     Started: [ node1-emulex node2-atto ]

 Resource Group: cluster

     ClusterIP  (ocf::heartbeat:IPaddr2):       Started node2-atto

     NFS-D      (ocf::heartbeat:nfsserver):     Started node2-atto

     nfsshare   (ocf::heartbeat:exportfs):      Started node2-atto

Daemon Status:

  corosync: active/enabled

  pacemaker: active/enabled

  pcsd: active/enabled






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