Jose Armando Garcia Sancio created KAFKA-12331:
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Summary: KafkaRaftClient should use the LEO when appending
LeaderChangeMessage
Key: KAFKA-12331
URL: https://issues.apache.org/jira/browse/KAFKA-12331
Project: Kafka
Issue Type: Sub-task
Components: replication
Reporter: Jose Armando Garcia Sancio
KafkaMetadataLog's appendAsLeader expects the base offset to match the LEO.
This is enforced when KafkaRaftClient uses the BatchAccumulator to create
batches. When creating the control batch for the LeaderChangeMessage the
KafkaRaftClient doesn't use the BatchAccumulator and instead creates the batch
with the default base offset of 0.
This causes the validation in KafkaMetadataLog to fail with the following
exception:
{code:java}
kafka.common.UnexpectedAppendOffsetException: Unexpected offset in append to
@metadata-0. First offset 0 is less than the next offset 5. First 10 offsets in
append: ArrayBuffer(0), last offset in append: 0. Log start offset = 0
at kafka.log.Log.append(Log.scala:1217)
at kafka.log.Log.appendAsLeader(Log.scala:1092)
at kafka.raft.KafkaMetadataLog.appendAsLeader(KafkaMetadataLog.scala:92)
at
org.apache.kafka.raft.KafkaRaftClient.appendAsLeader(KafkaRaftClient.java:1158)
at
org.apache.kafka.raft.KafkaRaftClient.appendLeaderChangeMessage(KafkaRaftClient.java:449)
at
org.apache.kafka.raft.KafkaRaftClient.onBecomeLeader(KafkaRaftClient.java:409)
at
org.apache.kafka.raft.KafkaRaftClient.maybeTransitionToLeader(KafkaRaftClient.java:463)
at
org.apache.kafka.raft.KafkaRaftClient.handleVoteResponse(KafkaRaftClient.java:663)
at
org.apache.kafka.raft.KafkaRaftClient.handleResponse(KafkaRaftClient.java:1530)
at
org.apache.kafka.raft.KafkaRaftClient.handleInboundMessage(KafkaRaftClient.java:1652)
at org.apache.kafka.raft.KafkaRaftClient.poll(KafkaRaftClient.java:2183)
at kafka.raft.KafkaRaftManager$RaftIoThread.doWork(RaftManager.scala:52)
at kafka.utils.ShutdownableThread.run(ShutdownableThread.scala:96)
{code}
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