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Status

Current state: Under Discussion Accepted

Discussion thread: https://lists.apache.org/thread/l8ko353v3nn1blgymsty895x6c98oxlx

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Bump Group Version

Increase the group.version feature level to 2 to enable rack-aware rebalancing. However, there are two drawbacks to implementing this:

  1. It requires maintaining lot of if-else block to determine whether to use subscription metadata or group hash.
  2. When changing the group.version to 2, it triggers an epoch bump for all groups.

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