Program guide > (deprecated) Partitioning facility > Partitioning facility programming > Partition alias

Deprecated feature: The partitioning facility (WPF) feature is deprecated. You can configure partitioning with WebSphere eXtreme Scale.

Partition grouping overview

For Extended Deployment v6.0, you can group several partitions together, and clients can route to any partition in a group of partitions alternatively within the same group context.

The partition grouping feature provides mechanisms to group a subset of partitions so that they can share the same routing context. A cluster can have as many partition groups as you want; each partition group can have one or more partitions. Partition group routing will route clients to one of available partitions in a group alternatively and skip the unavailable partitions. A weight-proportional routing algorithm is used among partitions in a group. Websphere Extended Deployment dynamic weights are still honored in the partition grouping.

Any string name can be assigned as an alias of a partition. Moreover, the same partition alias can be assigned to many partitions, so many partitions can be associated with the same routing context. This new function also makes customer grouping of partition sets possible.

Partition grouping structure

For example, in the following diagram, partitions P901 and P902 are assigned a group of A9, so clients can be routed to these partitions by A9 group context. Partitions P1, P2, P3, and Pn are assigned with a group of A1; clients with the context of group A1 can be routed to one of P1, P2, P3, and Pn in the weight-proportional manner. Sample WPFPartitionGroupingSample.ear is provided to show how it works.

Partition grouping structure

Parent topic:

Partition alias

Related concepts

What is a partition alias?