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https://issues.apache.org/jira/browse/KAFKA-1533?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14076484#comment-14076484
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Jun Rao commented on KAFKA-1533:
--------------------------------
This seems to be introduced by a bug in KAFKA-1542. I just committed a fix.
After that, I don't see the unit test hanging issue any more.
David,
Could you try the test again?
> transient unit test failure in ProducerFailureHandlingTest
> ----------------------------------------------------------
>
> Key: KAFKA-1533
> URL: https://issues.apache.org/jira/browse/KAFKA-1533
> Project: Kafka
> Issue Type: Bug
> Components: core
> Affects Versions: 0.8.2
> Reporter: Jun Rao
> Assignee: Guozhang Wang
> Fix For: 0.8.2
>
> Attachments: KAFKA-1533.patch, KAFKA-1533.patch, KAFKA-1533.patch,
> KAFKA-1533_2014-07-21_15:45:58.patch, kafka.threads, stack.out
>
>
> Occasionally, saw the test hang on tear down. The following is the stack
> trace.
> "Test worker" prio=5 tid=7f9246956000 nid=0x10e078000 in Object.wait()
> [10e075000]
> java.lang.Thread.State: WAITING (on object monitor)
> at java.lang.Object.wait(Native Method)
> - waiting on <7f4e69578> (a org.apache.zookeeper.ClientCnxn$Packet)
> at java.lang.Object.wait(Object.java:485)
> at org.apache.zookeeper.ClientCnxn.submitRequest(ClientCnxn.java:1344)
> - locked <7f4e69578> (a org.apache.zookeeper.ClientCnxn$Packet)
> at org.apache.zookeeper.ZooKeeper.delete(ZooKeeper.java:732)
> at org.I0Itec.zkclient.ZkConnection.delete(ZkConnection.java:91)
> at org.I0Itec.zkclient.ZkClient$8.call(ZkClient.java:720)
> at org.I0Itec.zkclient.ZkClient.retryUntilConnected(ZkClient.java:675)
> at org.I0Itec.zkclient.ZkClient.delete(ZkClient.java:716)
> at kafka.utils.ZkUtils$.deletePath(ZkUtils.scala:416)
> at kafka.utils.ZkUtils$.deregisterBrokerInZk(ZkUtils.scala:184)
> at kafka.server.KafkaHealthcheck.shutdown(KafkaHealthcheck.scala:50)
> at
> kafka.server.KafkaServer$$anonfun$shutdown$2.apply$mcV$sp(KafkaServer.scala:243)
> at kafka.utils.Utils$.swallow(Utils.scala:172)
> at kafka.utils.Logging$class.swallowWarn(Logging.scala:92)
> at kafka.utils.Utils$.swallowWarn(Utils.scala:45)
> at kafka.utils.Logging$class.swallow(Logging.scala:94)
> at kafka.utils.Utils$.swallow(Utils.scala:45)
> at kafka.server.KafkaServer.shutdown(KafkaServer.scala:243)
> at
> kafka.api.ProducerFailureHandlingTest.tearDown(ProducerFailureHandlingTest.scala:90)
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