hachikuji commented on code in PR #12187:
URL: https://github.com/apache/kafka/pull/12187#discussion_r879681829
##########
core/src/main/scala/kafka/server/ReplicaManager.scala:
##########
@@ -2141,23 +2141,22 @@ class ReplicaManager(val config: KafkaConfig,
stateChangeLogger.trace(s"Unable to start fetching $tp with topic
" +
s"ID ${info.topicId} because the replica manager is shutting
down.")
} else {
- if (isInControlledShutdown &&
!info.partition.isr.contains(config.brokerId)) {
- // If we are in controlled shutdown and the replica is not in
the ISR,
- // we stop the replica.
+ // We always update the follower state.
+ // - This ensure that a replica with no leader can step down;
+ // - This also ensures that the local replica is created even if
the leader
+ // is unavailable. This is required to ensure that we include
the partition's
+ // high watermark in the checkpoint file (see KAFKA-1647).
+ val state = info.partition.toLeaderAndIsrPartitionState(tp, isNew)
+ val isNewLeaderEpoch = partition.makeFollower(state,
offsetCheckpoints, Some(info.topicId))
+
+ if (isInControlledShutdown && (info.partition.leader == NO_LEADER
||
+ !info.partition.isr.contains(config.brokerId))) {
+ // During controlled shutdown, replica with no leaders and
replica
+ // where this broker is not in the ISR are stopped.
partitionsToStop.put(tp, false)
- } else if (newImage.cluster.broker(info.partition.leader) == null)
{
Review Comment:
Ah, I see.
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