WorkLoad Management
Hi
Workload management (WLM) is a WebSphere feature which that provides load
balancing and affinity between application servers in a WebSphere clustered
environment.
WLM is really important for performance. WebSphere uses workload management to send requests to alternate members of the cluster.
WLM is configurable. ie we can configure to ensure that each machine or server in the cluster gets the fair share of the overall client load that is being processed by the system as a whole.
Some Points on WLM
1) Routing of requests occurs between the Web server plug-in and the
clustered application servers using HTTP or HTTP
2) This routing is based on weights that are associated with the cluster members. If all cluster members have identical weights, the plug-in sends an equal number of requests to all members of the cluster, assuming no strong affinity configurations.
3) If the weights are scaled in the range from zero to 20, the plug-in routes requests to those cluster members with the higher weight value more often.
4) No requests are sent to cluster members with a weight of zero.
Workload management (WLM) is a WebSphere feature which that provides load
balancing and affinity between application servers in a WebSphere clustered
environment.
WLM is really important for performance. WebSphere uses workload management to send requests to alternate members of the cluster.
WLM is configurable. ie we can configure to ensure that each machine or server in the cluster gets the fair share of the overall client load that is being processed by the system as a whole.
Some Points on WLM
1) Routing of requests occurs between the Web server plug-in and the
clustered application servers using HTTP or HTTP
2) This routing is based on weights that are associated with the cluster members. If all cluster members have identical weights, the plug-in sends an equal number of requests to all members of the cluster, assuming no strong affinity configurations.
3) If the weights are scaled in the range from zero to 20, the plug-in routes requests to those cluster members with the higher weight value more often.
4) No requests are sent to cluster members with a weight of zero.
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