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changes.mady.by.user Omnia Ibrahim

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changes.mady.by.user Chris Egerton

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  • When users upgrade an existing MM2 cluster they don’t need to change any of their current configuration If they are using the default replication.policy.separator as this proposal maintains the default behaviour for MM2 with the default configs.
  • If users  users upgrade an existing MM2 to 3.1.x, 3.2.x, 3.3.x, 3.4.x, or 3.5.x and they are using a customised replication.policy.separator they need to provide a new version of `DefaulReplicationPolicy` that override `ReplicationPolicy.offsetSyncsTopic`and `ReplicationPolicy.checkpointsTopic` methods ReplicationPolicy (which can optionally subclass the DefaultReplicationPolicy  class) that overrides the ReplicationPolicy.offsetSyncsTopic  and ReplicationPolicy.checkpointsTopic  methods to use old topics if they still want to use the old internal topics. Related JIRA to this is discussed in  KAFKA-15102.


Rejected Alternatives

1- Add new interface for internal policies, the reason to reject is to minimise the number of MM2 customised classes

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