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Load Balancer

When the Affinity Manager compiles a list of active datastores that can process the request, the list is passed to the Load Balancer to determine where to route the request, based upon one of the following load balancing methods:

  • (Default) Workload Manager (WLM) Sysplex Routing Services
  • Statistical

Related topic

Using-workload-balancing


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The load balancing method is specified at the eGroup level to ensure that everything within the eGroup and the IMS Connect address space use the same load balancing method.

You can specify different router configurations ( DataStore Router configuration member name); however, you must use the same load balancing method (WLM or Statistical) for the eGroup. Multiple IMS Connects in the same or different eGroups can use the same DataStore Router definition.

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Example

Assume you have two IMS Connects sharing the same datastore, as shown in the following figure:

image2021-3-1_12-57-25.png
For routing to work, the same load balancing method (WLM or statistical) must be used in both IMS Connect address spaces. In this example, IMS Connect_A and IMS Connect_B are in the same eGroup and share datastore_3. Two IMS Connects sharing the same datastore is one of the reasons why you must use the same load balancing method for the IMS Connects within the same eGroup.

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