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Guozhang Wang commented on KAFKA-8495: -------------------------------------- If we decide round-robin / range would not support cooperative rebalance protocol at all, then we would not need this ticket any more given 6815 would be supported for static members. > 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 > Priority: Major > > 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. -- This message was sent by Atlassian JIRA (v7.6.3#76005)