Cluster states determine what cluster operations are available. By changing the state of a cluster, you can grant or restrict cluster operations such as migrations as well as change the behavior of those operations.
You may want to change a cluster’s state to do the following:
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Add multiple new members to the cluster without triggering repartitioning after each member joins.
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Perform maintenance on a cluster without triggering repartitioning.
Before you begin
You should already understand the concept of cluster states. For details about cluster states, see 5.7@hazelcast:maintain-cluster:cluster-member-states.adoc in the Platform documentation.
You must be an admin user to use this feature.
Change the state of a cluster
To change a cluster’s state, go to Administration > Cluster State and select a state from the dropdown menu.
Next steps
After changing the state of a cluster, you may want to shut it down and perform maintenance on it. To shut down a cluster, see Shut down members and clusters.
To trigger a hot backup of the persistence store, see Trigger hot backups.