WAS clusters
IBM® WAS clusters are grouped application servers that are managed together and participate in workload management.
A cluster can contain:
- A single WAS node (for example, a single ECM node with WAS clusters as is described in the White Paper Part 1).
- Multiple nodes.
- Individual application servers.
WAS clusters are responsible for workload balancing among application servers. Furthermore,
application servers that are a part of a cluster are called cluster members.
- Applications installed on cluster level are automatically installed on each cluster member.
- Because each cluster member contains the same applications, weights can be assigned according to each application server's capacity.
Each WAS cluster also provides the failover capability:
- If one application server is not available to perform a task, the task can be reassigned to another application server in the cluster.
- Reassigning a task has obvious advantages over running a standalone application server that can become overloaded if too many requests are received.
For more information on IBM WAS clusters, proceed to the
WAS documentation at the IBM Knowledge
Center:
https://www.ibm.com/docs/en/was-nd