Status

Current state: Under Discussion Accepted

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

...

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.

...