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Controller failover not possible due to unsynchronized log in MetroCluster IP

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Applies to

  • ONTAP 9
  • MetroCluster IP

Issue

  • Event log reporting controller failover events due to unsynchronized log:
Tue Dec 17 15:31:00 +0100 [Node_A2: cf_main: cf.fsm.takeoverByPartnerDisabled:error]: Failover monitor: takeover of Node_A1 by Node_A2 disabled (unsynchronized log).
  • System recovers to normal state in less than 10 seconds: 
Tue Dec 17 15:31:03 +0100 [Node_A2: cf_main: cf.fsm.takeoverByPartnerEnabled:notice]: Failover monitor: takeover of Node_A1 by Node_A2 enabled
  • Failover state will flap between enabled and disabled within a few seconds: 

Tue Dec 17 15:32:00 +0100 [Node_A2: monitor: monitor.globalStatus.ok:notice]: The system's global status is normal.
Tue Dec 17 15:33:13 +0100 [Node_A2: cf_main: cf.fsm.takeoverOfPartnerDisabled:error]: Failover monitor: takeover of Node_A2 disabled (unsynchronized log).

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