Rhino has two modes of operation for managing the activation state of services and resource adaptor entities: per-node and symmetric.

The activation state for the SLEE event-routing functions is always maintained on a per-node basis.

Per-node activation state

In the per-node activation state mode, Rhino maintains activation state for the installed services and created resource adaptor entities in a namespace on a per-node basis. That is, the SLEE records separate activation state information for each individual cluster node.

The per-node activation state mode is the default mode in a newly installed Rhino cluster.

Symmetric activation state

In the symmetric activation state mode, Rhino maintains a single cluster-wide activation state view for each installed service and created resource adaptor entity. So, for example, if a service is activated, then it is simultaneously activated on every cluster node. If a new node joins the cluster, then the services and resource adaptor entities on that node each enter the same activation state as for existing cluster nodes.

Warning

MBean operations affecting the activation state of services or resource adaptor entities that accept a list of node IDs to apply the operation to, such as the ServiceManagementMBean activate operation, cannot be used while the symmetric activation state mode is in force.

Similary, MBean operations that inspect or manage per-node activation state, such as the NodeHousekeepingMBean copyPerNodeActivationState operation, also cannot be used while the symmetric activation state mode is in force.

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Rhino Version 2.6.1