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https://issues.apache.org/jira/browse/KAFKA-1429?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15691805#comment-15691805
]
ASF GitHub Bot commented on KAFKA-1429:
---------------------------------------
Github user pengwei-li closed the pull request at:
https://github.com/apache/kafka/pull/1603
> Yet another deadlock in controller shutdown
> -------------------------------------------
>
> Key: KAFKA-1429
> URL: https://issues.apache.org/jira/browse/KAFKA-1429
> Project: Kafka
> Issue Type: Bug
> Components: controller
> Affects Versions: 0.8.1
> Reporter: Dmitry Bugaychenko
> Attachments: kafka_0.9.0.0_controller_dead_lock.patch
>
>
> Found one more case of deadlock in controller during shutdown:
> {code}
> ZkClient-EventThread-57-192.168.41.148:2181,192.168.36.250:2181,192.168.41.207:2181
> id=57 state=TIMED_WAITING
> - waiting on <0x288a66ec> (a
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
> - locked <0x288a66ec> (a
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
> at sun.misc.Unsafe.park(Native Method)
> at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:226)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2082)
> at
> java.util.concurrent.ThreadPoolExecutor.awaitTermination(ThreadPoolExecutor.java:1468)
> at kafka.utils.KafkaScheduler.shutdown(KafkaScheduler.scala:88)
> at
> kafka.controller.KafkaController$$anonfun$onControllerResignation$1.apply$mcV$sp(KafkaController.scala:339)
> at
> kafka.controller.KafkaController$$anonfun$onControllerResignation$1.apply(KafkaController.scala:337)
> at
> kafka.controller.KafkaController$$anonfun$onControllerResignation$1.apply(KafkaController.scala:337)
> at kafka.utils.Utils$.inLock(Utils.scala:538)
> at
> kafka.controller.KafkaController.onControllerResignation(KafkaController.scala:337)
> at
> kafka.controller.KafkaController$SessionExpirationListener$$anonfun$handleNewSession$1.apply$mcZ$sp(KafkaController.scala:1068)
> at
> kafka.controller.KafkaController$SessionExpirationListener$$anonfun$handleNewSession$1.apply(KafkaController.scala:1067)
> at
> kafka.controller.KafkaController$SessionExpirationListener$$anonfun$handleNewSession$1.apply(KafkaController.scala:1067)
> at kafka.utils.Utils$.inLock(Utils.scala:538)
> at
> kafka.controller.KafkaController$SessionExpirationListener.handleNewSession(KafkaController.scala:1067)
> at org.I0Itec.zkclient.ZkClient$4.run(ZkClient.java:472)
> at org.I0Itec.zkclient.ZkEventThread.run(ZkEventThread.java:71)
> Locked synchronizers: count = 1
> - java.util.concurrent.locks.ReentrantLock$NonfairSync@22b9b31a
> kafka-scheduler-0 id=172 state=WAITING
> - waiting on <0x22b9b31a> (a
> java.util.concurrent.locks.ReentrantLock$NonfairSync)
> - locked <0x22b9b31a> (a
> java.util.concurrent.locks.ReentrantLock$NonfairSync)
> owned by
> ZkClient-EventThread-57-192.168.41.148:2181,192.168.36.250:2181,192.168.41.207:2181
> id=57
> at sun.misc.Unsafe.park(Native Method)
> at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:834)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:867)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1197)
> at
> java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:214)
> at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:290)
> at kafka.utils.Utils$.inLock(Utils.scala:536)
> at
> kafka.controller.KafkaController$$anonfun$kafka$controller$KafkaController$$checkAndTriggerPartitionRebalance$4$$anonfun$apply$17.apply(KafkaController.scala:1110)
> at
> kafka.controller.KafkaController$$anonfun$kafka$controller$KafkaController$$checkAndTriggerPartitionRebalance$4$$anonfun$apply$17.apply(KafkaController.scala:1108)
> at
> scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:98)
> at
> scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:98)
> at
> scala.collection.mutable.HashTable$class.foreachEntry(HashTable.scala:226)
> at scala.collection.mutable.HashMap.foreachEntry(HashMap.scala:39)
> at scala.collection.mutable.HashMap.foreach(HashMap.scala:98)
> at
> kafka.controller.KafkaController$$anonfun$kafka$controller$KafkaController$$checkAndTriggerPartitionRebalance$4.apply(KafkaController.scala:1108)
> at
> kafka.controller.KafkaController$$anonfun$kafka$controller$KafkaController$$checkAndTriggerPartitionRebalance$4.apply(KafkaController.scala:1087)
> at scala.collection.immutable.Map$Map4.foreach(Map.scala:181)
> at
> kafka.controller.KafkaController.kafka$controller$KafkaController$$checkAndTriggerPartitionRebalance(KafkaController.scala:1087)
> at
> kafka.controller.KafkaController$$anonfun$onControllerFailover$1.apply$mcV$sp(KafkaController.scala:323)
> at kafka.utils.KafkaScheduler$$anon$1.run(KafkaScheduler.scala:100)
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:744)
> Locked synchronizers: count = 1
> - java.util.concurrent.ThreadPoolExecutor$Worker@7d6e8aba
> {code}
> Just before the shutdown broker entered a state where it was not able to
> update ISR and replication was not progressing (this was the reason for
> restart):
> {code}
> Apr 29 01:09:52 srvd2229 odnoklassniki-databus[5571]: 2014-04-29 01:09:52,189
> INFO [kafka-scheduler-1] Partition - Partition [stabilityTestSecond,9] on
> broker 4: Shrinking ISR for partition [stabilityTe
> stSecond,9] from 4,2 to 4
> Apr 29 01:09:52 srvd2229 odnoklassniki-databus[5571]: 2014-04-29 01:09:52,210
> ERROR [kafka-scheduler-1] ZkUtils$ - Conditional update of path
> /brokers/topics/stabilityTestSecond/partitions/9/state with d
> ata
> {"controller_epoch":20,"leader":4,"version":1,"leader_epoch":38,"isr":[4]}
> and expected version 134 failed due to
> org.apache.zookeeper.KeeperException$BadVersionException: KeeperErrorCode =
> BadVersio
> n for /brokers/topics/stabilityTestSecond/partitions/9/state
> Apr 29 01:09:52 srvd2229 odnoklassniki-databus[5571]: 2014-04-29 01:09:52,210
> INFO [kafka-scheduler-1] Partition - Partition [stabilityTestSecond,9] on
> broker 4: Cached zkVersion [134] not equal to that
> in zookeeper, skip updating ISR
> {code}
> Right before the broker entered this state there was a temporary connection
> loss to ZK due to GC fo 5 seconds.
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