Guozhang Wang created KAFKA-8495:
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Summary: Make Round-robin / RangeAssignor to be "sticky" (part 5)
Key: KAFKA-8495
URL: https://issues.apache.org/jira/browse/KAFKA-8495
Project: Kafka
Issue Type: Sub-task
Reporter: Guozhang Wang
For this new algorithm to be effective in reducing rebalance costs, it is
really expecting the plug-in assignor to be "sticky" in some way, such that the
diff of the newly-assigned-partitions and the existing-assigned-partitions can
be small, and hence only a few subset of the total number of partitions need to
be revoked / migrated at each rebalance in practice – otherwise, we are just
paying more rebalance for little benefits.
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