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KAFKA-7838: Log leader and follower end offsets when shrinking ISR #6168

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Merged
junrao merged 3 commits into from
Jan 25, 2019
Merged

KAFKA-7838: Log leader and follower end offsets when shrinking ISR #6168

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KAFKA-7838: Log leader and follower end offsets when shrinking ISR
dhruvilshah3 Jan 18, 2019
74ecbca
hwm --> highWatermark
dhruvilshah3 Jan 24, 2019
11fbfbe
Address review comment
dhruvilshah3 Jan 25, 2019
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19 changes: 14 additions & 5 deletions core/src/main/scala/kafka/cluster/Partition.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -634,16 +634,25 @@ class Partition(val topicPartition: TopicPartition,
leaderReplicaIfLocal match {
case Some(leaderReplica) =>
val outOfSyncReplicas = getOutOfSyncReplicas(leaderReplica, replicaMaxLagTimeMs)
if(outOfSyncReplicas.nonEmpty) {
if (outOfSyncReplicas.nonEmpty) {
val newInSyncReplicas = inSyncReplicas -- outOfSyncReplicas
assert(newInSyncReplicas.nonEmpty)
info("Shrinking ISR from %s to %s".format(inSyncReplicas.map(_.brokerId).mkString(","),
newInSyncReplicas.map(_.brokerId).mkString(",")))
info("Shrinking ISR from %s to %s. Leader: (highWatermark: %d, endOffset: %d). Out of sync replicas: %s."
.format(inSyncReplicas.map(_.brokerId).mkString(","),
newInSyncReplicas.map(_.brokerId).mkString(","),
leaderReplica.highWatermark.messageOffset,
leaderReplica.logEndOffset.messageOffset,
outOfSyncReplicas.map { replica =>
s"(brokerId: ${replica.brokerId}, endOffset: ${replica.logEndOffset.messageOffset})"
}.mkString(" ")
)
)

// update ISR in zk and in cache
updateIsr(newInSyncReplicas)
// we may need to increment high watermark since ISR could be down to 1

replicaManager.isrShrinkRate.mark()

// we may need to increment high watermark since ISR could be down to 1
maybeIncrementLeaderHW(leaderReplica)
} else {
false
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