showuon commented on a change in pull request #10863:
URL: https://github.com/apache/kafka/pull/10863#discussion_r650895147
##########
File path: core/src/main/scala/kafka/coordinator/group/GroupCoordinator.scala
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@@ -1450,12 +1463,67 @@ class GroupCoordinator(val brokerId: Int,
group.maybeInvokeJoinCallback(member, joinResult)
completeAndScheduleNextHeartbeatExpiration(group, member)
member.isNew = false
+
+ group.addPendingSyncMember(member.memberId)
}
+
+ val delayedSync = new DelayedSync(this, group,
group.rebalanceTimeoutMs)
+ val groupKey = GroupKey(group.groupId)
+ syncPurgatory.tryCompleteElseWatch(delayedSync, Seq(groupKey))
}
}
}
}
+ private def maybeCompleteSyncExpiration(
+ group: GroupMetadata
+ ): Unit = {
+ val groupKey = GroupKey(group.groupId)
+ syncPurgatory.checkAndComplete(groupKey)
+ }
+
+ def tryCompletePendingSync(
+ group: GroupMetadata,
+ forceComplete: () => Boolean
+ ): Boolean = {
+ group.inLock {
+ group.currentState match {
+ case Dead | Empty | PreparingRebalance =>
+ forceComplete()
+ case CompletingRebalance | Stable =>
+ if (group.hasReceivedSyncFromAllMembers())
+ forceComplete()
+ else false
+ }
+ }
+ }
+
+ def onExpirePendingSync(
+ group: GroupMetadata
+ ): Unit = {
+ group.inLock {
+ group.currentState match {
+ case Dead | Empty | PreparingRebalance =>
+ debug(s"Received notification of sync expiration for group
${group.groupId} in ${group.currentState} state. Ignoring.")
Review comment:
SGTM. Thanks.
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