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https://issues.apache.org/jira/browse/KAFKA-1501?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14191022#comment-14191022
]
Guozhang Wang commented on KAFKA-1501:
--------------------------------------
OK. I finally got to re-produce the error after running about 60 times, all of
which coming from the same place:
{code}
java.net.BindException: Address already in use
at sun.nio.ch.Net.bind(Native Method)
at
sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:124)
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:59)
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:52)
at
org.apache.zookeeper.server.NIOServerCnxnFactory.configure(NIOServerCnxnFactory.java:95)
at kafka.zk.EmbeddedZookeeper.<init>(EmbeddedZookeeper.scala:33)
at
kafka.zk.ZooKeeperTestHarness$class.setUp(ZooKeeperTestHarness.scala:33)
at kafka.admin.AdminTest.setUp(AdminTest.scala:33)
at junit.framework.TestCase.runBare(TestCase.java:128)
at junit.framework.TestResult$1.protect(TestResult.java:110)
at junit.framework.TestResult.runProtected(TestResult.java:128)
at junit.framework.TestResult.run(TestResult.java:113)
at junit.framework.TestCase.run(TestCase.java:120)
at junit.framework.TestSuite.runTest(TestSuite.java:228)
at junit.framework.TestSuite.run(TestSuite.java:223)
at
org.junit.internal.runners.OldTestClassRunner.run(OldTestClassRunner.java:35)
at
org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.runTestClass(JUnitTestClassExecuter.java:86)
at
org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.execute(JUnitTestClassExecuter.java:49)
at
org.gradle.api.internal.tasks.testing.junit.JUnitTestClassProcessor.processTestClass(JUnitTestClassProcessor.java:69)
at
org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.processTestClass(SuiteTestClassProcessor.java:48)
at sun.reflect.GeneratedMethodAccessor14.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
at
org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at
org.gradle.messaging.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32)
at
org.gradle.messaging.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
at $Proxy2.processTestClass(Unknown Source)
at
org.gradle.api.internal.tasks.testing.worker.TestWorker.processTestClass(TestWorker.java:105)
at sun.reflect.GeneratedMethodAccessor13.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
at
org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at
org.gradle.messaging.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:355)
at
org.gradle.internal.concurrent.DefaultExecutorFactory$StoppableExecutorImpl$1.run(DefaultExecutorFactory.java:64)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
{code}
Another observation is that a bulk of the binding errors (I got penty this
time) happen consecutively, i.e. when the first binding error happens it
continue to fail on the following 60+ test cases until resolves itself. So
Ewen's theory is likely to be true: when such a race condition happens, it will
not be resolved until it was used and released by one socket before the other
tries to bind to it.
> transient unit tests failures due to port already in use
> --------------------------------------------------------
>
> Key: KAFKA-1501
> URL: https://issues.apache.org/jira/browse/KAFKA-1501
> Project: Kafka
> Issue Type: Improvement
> Components: core
> Reporter: Jun Rao
> Assignee: Guozhang Wang
> Labels: newbie
> Attachments: KAFKA-1501-choosePorts.patch, KAFKA-1501.patch,
> KAFKA-1501.patch
>
>
> Saw the following transient failures.
> kafka.api.ProducerFailureHandlingTest > testTooLargeRecordWithAckOne FAILED
> kafka.common.KafkaException: Socket server failed to bind to
> localhost:59909: Address already in use.
> at kafka.network.Acceptor.openServerSocket(SocketServer.scala:195)
> at kafka.network.Acceptor.<init>(SocketServer.scala:141)
> at kafka.network.SocketServer.startup(SocketServer.scala:68)
> at kafka.server.KafkaServer.startup(KafkaServer.scala:95)
> at kafka.utils.TestUtils$.createServer(TestUtils.scala:123)
> at
> kafka.api.ProducerFailureHandlingTest.setUp(ProducerFailureHandlingTest.scala:68)
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