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9.8.2. Running a Maintenance Operation
JBoss ON regularly takes snapshots or backups of its monitoring and system data. This occurs for two events:
- When a node is added or removed from the cluster.
- As part of weekly maintenance.The weekly maintanenace snapshot is scheduled for Sunday at 00:30. The schedule is fixed and cannot be changed.
A maintenance operation has two parts:
- Take a snapshot of every node in the cluster.
- Run a repair operation on every node. The repair operation is run on each node consecutively, to update and resolve any data issues.
It is possible to initiate a maintenance operation outside its schedule through the JBoss ON command-line tool:
rhqadmin@localhost:7080$ StorageNodeManager.runClusterMaintenance()
Note
The node repair operation is CPU- and disk-intensive. Running the maintenance operation during high-use times will result in performance degradation.
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