Starting and stopping a Liberty server cluster

• All of the members of the server cluster must have the clusterMember-1.0 feature enabled in their server.xml files.
• All of the members of the server cluster must be configured for collective member starting and stopping.

  See Starting and stopping a Liberty collective member for more information.

The startCluster and stopCluster methods will start and stop all of the servers in the cluster serially. If the size of a cluster is large, the operation can take a long time to complete. The expected execution time is O(N) where N is the number of servers in the cluster. The total time for the operation is approximately N*(server_start_time). If you are starting 100 severs that take 6 seconds to start, for example, the startCluster operation will take approximately 600 seconds (10 minutes).