Administer high availability for service integration
Use these tasks to administer high availability at run time.
- Manage a messaging engine in a cluster
- Move a messaging engine from one server to another using the HAManager
- Modify the failover capability of a messaging engine
- Manage high availability when messaging engines fail to start
Subtopics
- Manage a messaging engine in a cluster
During run time, we can stop or start a messaging engine in a WebSphere Application Server cluster, independently of the server in which it is running.
- Move a messaging engine from one server to another using the HAManager
We can move a messaging engine from one server to another by changing the policy that is bound to the messaging engine HAGroup. This is the recommended way of moving the messaging engine. We must not attempt to directly activate or deactivate the members of the HAGroup that relates to the messaging engine.
- Modify the failover capability of a messaging engine
We can modify the failover capability of a messaging engine at run time. However, do not do this unless it is absolutely necessary.
- Manage high availability when messaging engines fail to start
If an attempt to start a messaging engine on a server is unsuccessful, that server is disabled as a location for that messaging engine to run. After we have resolved the problem that prevented the messaging engine from starting, you must manually re-enable the server to maintain the high availability environment.
Subtopics
- Manage a messaging engine in a cluster
During run time, we can stop or start a messaging engine in a WebSphere Application Server cluster, independently of the server in which it is running.
- Move a messaging engine from one server to another using the HAManager
We can move a messaging engine from one server to another by changing the policy that is bound to the messaging engine HAGroup. This is the recommended way of moving the messaging engine. We must not attempt to directly activate or deactivate the members of the HAGroup that relates to the messaging engine.
- Modify the failover capability of a messaging engine
We can modify the failover capability of a messaging engine at run time. However, do not do this unless it is absolutely necessary.
- Manage high availability when messaging engines fail to start
If an attempt to start a messaging engine on a server is unsuccessful, that server is disabled as a location for that messaging engine to run. After we have resolved the problem that prevented the messaging engine from starting, you must manually re-enable the server to maintain the high availability environment.
Related tasks
High availability and workload sharing for service integration technologies Configure high availability and workload sharing of service integration