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FetchQuorumRecords Response

Table of Contents

Master KIP

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  1. If the response contains FENCED_LEADER_EPOCH error code, check the leaderId from the response. If it is defined, then update the quorum-state file and become a "follower" (may or may not have voting power) of that leader. Otherwise, try to learn about the new leader via FindQuorum requests; in the mean time it may receive BeginQuorumEpoch request which would also update the new epoch / leader as well.
  2. If the response contains OUT_OF_RANGE error code, truncate its local log to the encoded nextFetchOffset, and then resend the FetchRecord request.

Note that followers will have to check any records received for the presence of control records. Specifically a follower/observer must check for voter assignment messages which could change its role.

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