chb2ab commented on code in PR #14444:
URL: https://github.com/apache/kafka/pull/14444#discussion_r1342850556
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core/src/main/scala/kafka/server/KafkaApis.scala:
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@@ -559,6 +560,30 @@ class KafkaApis(val requestChannel: RequestChannel,
}
}
+ case class LeaderNode(leaderId: Int, leaderEpoch: Int, node: Node)
+
+ private def getCurrentLeader(tp: TopicPartition): LeaderNode = {
+ val partitionInfoOrError = replicaManager.getPartitionOrError(tp)
+ var leaderId = -1
+ var leaderEpoch = -1
+ partitionInfoOrError match {
+ case Right(x) =>
+ leaderId = x.leaderReplicaIdOpt.getOrElse(-1)
+ leaderEpoch = x.getLeaderEpoch
+ case Left(x) =>
+ debug(s"Unable to retrieve local leaderId and Epoch with error $x,
falling back to metadata cache")
+ val partitionInfo = metadataCache.getPartitionInfo(tp.topic,
tp.partition)
+ partitionInfo.foreach { info =>
Review Comment:
Looking at other uses of partitionInfo I think this is a style choice. There
can only be 1 partitionInfo in the getPartitionInfo object, so the forEach
should only ever access 1 entry, I think this is just a more succinct way of
accessing it.
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