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  1. Kafka
  2. KAFKA-5027 Kafka Controller Redesign
  3. KAFKA-5083

always leave the last surviving member of the ISR in ZK

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    Details

    • Type: Sub-task
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 1.1.0
    • Component/s: None
    • Labels:
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      Description

      Currently we erase ISR membership if the replica to be removed from the ISR is the last surviving member of the ISR and unclean leader election is enabled for the corresponding topic.

      We should investigate leaving the last replica in ISR in ZK, independent of whether unclean leader election is enabled or not. That way, if people re-disabled unclean leader election, we can still try to elect the leader from the last in-sync replica.

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            • Assignee:
              onurkaraman Onur Karaman
              Reporter:
              onurkaraman Onur Karaman
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              • Created:
                Updated:
                Resolved: