RHEL 6 High Availability クラスターの 1 つのノードで corosync サービスがランダムに停止する

Issue

• corosync サービスが 1 つのノードでランダムに停止します。
• 突然、cman および pacemaker からのクラスター関連のすべてのプロセスが、クラスターと corosync が停止したことをレポートしますが、corosync はログに何も出力せず、単に実行されなくなりました。

Jul  8 18:00:21 node1 fenced[39630]: cluster is down, exiting
Jul  8 18:00:21 node1 fenced[39630]: daemon cpg_dispatch error 2
Jul  8 18:00:21 node1 dlm_controld[39654]: cluster is down, exiting
Jul  8 18:00:21 node1 attrd[39839]:    error: pcmk_cpg_dispatch: Connection to the CPG API failed: Library error (2)
Jul  8 18:00:21 node1 gfs_controld[39701]: cluster is down, exiting
Jul  8 18:00:21 node1 pacemakerd[39830]:    error: pcmk_cpg_dispatch: Connection to the CPG API failed: Library error (2)
Jul  8 18:00:21 node1 cib[39836]:    error: pcmk_cpg_dispatch: Connection to the CPG API failed: Library error (2)
Jul  8 18:00:21 node1 crmd[39841]:    error: pcmk_cpg_dispatch: Connection to the CPG API failed: Library error (2)
Jul  8 18:00:21 node1 stonith-ng[39837]:    error: pcmk_cpg_dispatch: Connection to the CPG API failed: Library error (2)
Jul  8 18:00:21 node1 gfs_controld[39701]: daemon cpg_dispatch error 2
Jul  8 18:00:21 node1 dlm_controld[39654]: daemon cpg_dispatch error 2
Jul  8 18:00:21 node1 attrd[39839]:     crit: attrd_cs_destroy: Lost connection to Corosync service!
Jul  8 18:00:21 node1 stonith-ng[39837]:    error: stonith_peer_cs_destroy: Corosync connection terminated
Jul  8 18:00:21 node1 pacemakerd[39830]:    error: mcp_cpg_destroy: Connection destroyed
Jul  8 18:00:21 node1 cib[39836]:    error: cib_cs_destroy: Corosync connection lost!  Exiting.
Jul  8 18:00:21 node1 crmd[39841]:    error: crmd_cs_destroy: connection terminated
Jul  8 18:00:21 node1 attrd[39839]:    error: attrd_cib_connection_destroy: Connection to the CIB terminated...
Jul  8 18:00:23 node1 kernel: dlm: closing connection to node 2
Jul  8 18:00:23 node1 kernel: dlm: closing connection to node 4
Jul  8 18:00:23 node1 kernel: dlm: closing connection to node 3
Jul  8 18:00:23 node1 kernel: dlm: closing connection to node 6
Jul  8 18:00:23 node1 kernel: dlm: closing connection to node 5
Jul  8 18:00:23 node1 kernel: dlm: closing connection to node 1