Sean Fay created KAFKA-1716:
-------------------------------
Summary: hang during shutdown of ZookeeperConsumerConnector
Key: KAFKA-1716
URL: https://issues.apache.org/jira/browse/KAFKA-1716
Project: Kafka
Issue Type: Bug
Components: consumer
Affects Versions: 0.8.1.1
Reporter: Sean Fay
Assignee: Neha Narkhede
It appears to be possible for {{ZookeeperConsumerConnector.shutdown()}} to
wedge in the case that some consumer fetcher threads receive messages during
the shutdown process.
Shutdown thread:
{code} -- Parking to wait for:
java/util/concurrent/CountDownLatch$Sync@0x2aaaf3ef06d0
at jrockit/vm/Locks.park0(J)V(Native Method)
at jrockit/vm/Locks.park(Locks.java:2230)
at sun/misc/Unsafe.park(ZJ)V(Native Method)
at java/util/concurrent/locks/LockSupport.park(LockSupport.java:156)
at
java/util/concurrent/locks/AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:811)
at
java/util/concurrent/locks/AbstractQueuedSynchronizer.doAcquireSharedInterruptibly(AbstractQueuedSynchronizer.java:969)
at
java/util/concurrent/locks/AbstractQueuedSynchronizer.acquireSharedInterruptibly(AbstractQueuedSynchronizer.java:1281)
at java/util/concurrent/CountDownLatch.await(CountDownLatch.java:207)
at kafka/utils/ShutdownableThread.shutdown(ShutdownableThread.scala:36)
at
kafka/server/AbstractFetcherThread.shutdown(AbstractFetcherThread.scala:71)
at
kafka/server/AbstractFetcherManager$$anonfun$closeAllFetchers$2.apply(AbstractFetcherManager.scala:121)
at
kafka/server/AbstractFetcherManager$$anonfun$closeAllFetchers$2.apply(AbstractFetcherManager.scala:120)
at
scala/collection/TraversableLike$WithFilter$$anonfun$foreach$1.apply(TraversableLike.scala:772)
at
scala/collection/mutable/HashMap$$anonfun$foreach$1.apply(HashMap.scala:98)
at
scala/collection/mutable/HashMap$$anonfun$foreach$1.apply(HashMap.scala:98)
at
scala/collection/mutable/HashTable$class.foreachEntry(HashTable.scala:226)
at scala/collection/mutable/HashMap.foreachEntry(HashMap.scala:39)
at scala/collection/mutable/HashMap.foreach(HashMap.scala:98)
at
scala/collection/TraversableLike$WithFilter.foreach(TraversableLike.scala:771)
at
kafka/server/AbstractFetcherManager.closeAllFetchers(AbstractFetcherManager.scala:120)
^-- Holding lock: java/lang/Object@0x2aaaebcc7318[thin lock]
at
kafka/consumer/ConsumerFetcherManager.stopConnections(ConsumerFetcherManager.scala:148)
at
kafka/consumer/ZookeeperConsumerConnector.liftedTree1$1(ZookeeperConsumerConnector.scala:171)
at
kafka/consumer/ZookeeperConsumerConnector.shutdown(ZookeeperConsumerConnector.scala:167){code}
ConsumerFetcherThread:
{code} -- Parking to wait for:
java/util/concurrent/locks/AbstractQueuedSynchronizer$ConditionObject@0x2aaaebcc7568
at jrockit/vm/Locks.park0(J)V(Native Method)
at jrockit/vm/Locks.park(Locks.java:2230)
at sun/misc/Unsafe.park(ZJ)V(Native Method)
at java/util/concurrent/locks/LockSupport.park(LockSupport.java:156)
at
java/util/concurrent/locks/AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1987)
at
java/util/concurrent/LinkedBlockingQueue.put(LinkedBlockingQueue.java:306)
at kafka/consumer/PartitionTopicInfo.enqueue(PartitionTopicInfo.scala:60)
at
kafka/consumer/ConsumerFetcherThread.processPartitionData(ConsumerFetcherThread.scala:49)
at
kafka/server/AbstractFetcherThread$$anonfun$processFetchRequest$1$$anonfun$apply$mcV$sp$2.apply(AbstractFetcherThread.scala:130)
at
kafka/server/AbstractFetcherThread$$anonfun$processFetchRequest$1$$anonfun$apply$mcV$sp$2.apply(AbstractFetcherThread.scala:111)
at scala/collection/immutable/HashMap$HashMap1.foreach(HashMap.scala:224)
at scala/collection/immutable/HashMap$HashTrieMap.foreach(HashMap.scala:403)
at
kafka/server/AbstractFetcherThread$$anonfun$processFetchRequest$1.apply$mcV$sp(AbstractFetcherThread.scala:111)
at
kafka/server/AbstractFetcherThread$$anonfun$processFetchRequest$1.apply(AbstractFetcherThread.scala:111)
at
kafka/server/AbstractFetcherThread$$anonfun$processFetchRequest$1.apply(AbstractFetcherThread.scala:111)
at kafka/utils/Utils$.inLock(Utils.scala:538)
at
kafka/server/AbstractFetcherThread.processFetchRequest(AbstractFetcherThread.scala:110)
at kafka/server/AbstractFetcherThread.doWork(AbstractFetcherThread.scala:88)
at kafka/utils/ShutdownableThread.run(ShutdownableThread.scala:51)
at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method){code}
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