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The major issue after skimming over this is that the deadlock detection will not work for ReadWriteLock implementations. This is the same problem we see with JStack dumps where the tool doesn't detect the actual active deadlock. ambari-server/src/test/java/org/apache/ambari/server/state/cluster/DeadlockWarningThread.java <https://reviews.apache.org/r/35074/#comment138701> Maybe some information about what this class is actually doing? ambari-server/src/test/java/org/apache/ambari/server/state/cluster/DeadlockWarningThread.java <https://reviews.apache.org/r/35074/#comment138700> Remove @author ambari-server/src/test/java/org/apache/ambari/server/state/cluster/DeadlockWarningThread.java <https://reviews.apache.org/r/35074/#comment138702> This won't find deadlocked threads based on ReadWriteLock implementations. - Jonathan Hurley On June 4, 2015, 10:58 a.m., Vitalyi Brodetskyi wrote: > > ----------------------------------------------------------- > This is an automatically generated e-mail. To reply, visit: > https://reviews.apache.org/r/35074/ > ----------------------------------------------------------- > > (Updated June 4, 2015, 10:58 a.m.) > > > Review request for Ambari and Jonathan Hurley. > > > Bugs: AMBARI-11692 > https://issues.apache.org/jira/browse/AMBARI-11692 > > > Repository: ambari > > > Description > ------- > > Fails on 2 ubuntu workstations > > {noformat} > > Tests in error: > > testDeadlockWhileRestartingComponents(org.apache.ambari.server.state.cluster.ClusterDeadlockTest): > test timed out after 75000 milliseconds > > Tests run: 3016, Failures: 0, Errors: 1, Skipped: 21 > > [INFO] > ------------------------------------------------------------------------ > [INFO] Reactor Summary: > [INFO] > [INFO] Ambari Views ...................................... SUCCESS [4.863s] > [INFO] Ambari Server ..................................... FAILURE > [1:49:50.358s] > [INFO] > ------------------------------------------------------------------------ > [INFO] BUILD FAILURE > > {noformat} > > {noformat} > java.lang.Exception: test timed out after 75000 milliseconds > at java.lang.Object.wait(Native Method) > at java.lang.Thread.join(Thread.java:1281) > at java.lang.Thread.join(Thread.java:1355) > at > org.apache.ambari.server.state.cluster.ClusterDeadlockTest.testDeadlockWhileRestartingComponents(ClusterDeadlockTest.java:241) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at > org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45) > at > org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) > at > org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42) > at > org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20) > at > org.junit.internal.runners.statements.FailOnTimeout$StatementThread.run(FailOnTimeout.java:62) > > at > org.apache.ambari.server.state.svccomphost.ServiceComponentHostImpl.getDesiredStateEntity(ServiceComponentHostImpl.java:1555) > at > org.apache.ambari.server.state.svccomphost.ServiceComponentHostImpl.isRestartRequired(ServiceComponentHostImpl.java:1478) > at > org.apache.ambari.server.state.ConfigHelper.calculateIsStaleConfigs(ConfigHelper.java:927) > at > org.apache.ambari.server.state.ConfigHelper.isStaleConfigs(ConfigHelper.java:376) > at > org.apache.ambari.server.state.cluster.ClusterImpl.getClusterHealthReport(ClusterImpl.java:2580) > {noformat} > > Reproduced in trunk, last commit > {noformat} > commit a52eb51d1af0edc9273a947535a2a36886e625da > Author: Oleg Nechiporenko <[email protected]> > Date: Thu May 28 18:02:28 2015 +0300 > > AMBARI-11484. Configs: when doing override, it's hard to find config > override (onechiporenko) > > {noformat} > > > Diffs > ----- > > > ambari-server/src/test/java/org/apache/ambari/server/state/cluster/ClusterDeadlockTest.java > 2f064ab > > ambari-server/src/test/java/org/apache/ambari/server/state/cluster/DeadlockWarningThread.java > PRE-CREATION > > ambari-server/src/test/java/org/apache/ambari/server/state/cluster/DeadlockedThreadsTest.java > PRE-CREATION > > Diff: https://reviews.apache.org/r/35074/diff/ > > > Testing > ------- > > mvn clean test > > > Thanks, > > Vitalyi Brodetskyi > >
