splett2 commented on a change in pull request #11255:
URL: https://github.com/apache/kafka/pull/11255#discussion_r701247464
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File path: core/src/main/scala/kafka/controller/KafkaController.scala
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@@ -628,9 +628,11 @@ class KafkaController(val config: KafkaConfig,
topicDeletionManager.failReplicaDeletion(newOfflineReplicasForDeletion)
}
- // If replica failure did not require leader re-election, inform brokers
of the offline brokers
+ // If no partition has changed leader or ISR, no UpdateMetadataRequest is
sent through PartitionStateMachine
+ // and ReplicaStateMachine. In that case, we want to send an
UpdateMetadataRequest explicitly to
+ // propagate the information about the new offline brokers.
Review comment:
good point thanks.
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