Workload management (WLM)
Workload management optimizes the distribution of client processing tasks. Incoming work requests are distributed to the appservers, enterprise beans, servlets, and other objects that can most effectively process the requests. Workload management also provides failover when servers are not available, improving application availability.
Workload management provides the following benefits to WebSphere Application Server applications:
- It balances client workloads, allowing processing tasks to be distributed
according to the capacities of the different machines in the system.
- It provides failover capability by redirecting client requests if one
or more servers is unable to process them. This improves the availability
of applications and administrative services.
- It enables systems to be scaled up to serve a higher client load than
provided by the basic configuration. With clustering, additional instances
of servers, servlets, and other objects can easily be added to the configuration.
- It enables servers to be transparently maintained and upgraded while
applications remain available for users.
- It centralizes the administration of servers and other objects.
In the WebSphere Application Server environment, you implement workload management by using clusters, transports, and replication domains.
Techniques for managing state
Balancing workloads with clusters