10.7 Failure recovery in a cluster system
When a failure occurs on the executing node, the cluster software executes a failover and the standby node takes over the processing. When a failover takes place, processing that was being executed by the executing node stops.
The system administrator identifies the cause of the failure that occurred on the executing node. After removing the cause of the failure, you need to switch the processing to the executing node to recover from the failure.
Collect and analyze the following log information to identify the cause of the failure:
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Performance Management log information
This information is the same as that collected in a non-cluster system. Collected information includes:
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System log
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Common message log
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Operation status log
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Trace log
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Cluster software and OS log information
We recommend that you also collect the log information for the cluster system, and the log information output by the operating system itself.
For details on the log information output by Performance Management, see 17.4 Log information to be output when Performance Management is used.
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