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IBM WebSphere eXtreme Scale 6 by Anthony Chaves

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Partition placement

Let's talk a little bit about what happens when a new container becomes available. On start up, the container process notifies the catalog server that an additional container is available for use:

Partition placement

Once the catalog server knows about the new container, it assigns several partitions to it using a waterfall algorithm. As more containers become available, partitions are migrated from the containers that contain the most partitions, to the containers that contain the fewest partitions. In the previous figure, each of the three existing containers holds three partitions.

When the fourth container starts, the catalog server assigns ...

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