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Hudson commented on MAPREDUCE-4062: ----------------------------------- Integrated in Hadoop-Hdfs-0.23-Build #218 (See [https://builds.apache.org/job/Hadoop-Hdfs-0.23-Build/218/]) MAPREDUCE-4062. AM Launcher thread can hang forever (tgraves via bobby) (Revision 1309046) MAPREDUCE-4062. AM Launcher thread can hang forever (tgraves via bobby) (Revision 1309045) Result = SUCCESS bobby : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1309046 Files : * /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/CHANGES.txt bobby : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1309045 Files : * /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/launcher/ContainerLauncher.java * /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/launcher/ContainerLauncherImpl.java * /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/launcher/TestContainerLauncher.java * /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/api/impl/pb/client/ContainerManagerPBClientImpl.java * /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/TestContainerLaunchRPC.java > AM Launcher thread can hang forever > ----------------------------------- > > Key: MAPREDUCE-4062 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-4062 > Project: Hadoop Map/Reduce > Issue Type: Bug > Components: mrv2 > Affects Versions: 0.23.2 > Reporter: Thomas Graves > Assignee: Thomas Graves > Fix For: 0.23.3, 2.0.0 > > Attachments: MAPREDUCE-4062-branch-0.23.patch, MAPREDUCE-4062.patch, > MAPREDUCE-4062.patch > > > We saw an instance where the RM stopped launch Application masters. We found > that the launcher thread was hung because something weird/bad happened to the > NM node. Currently there is only 1 launcher thread (jira 4061 to fix that). > We need this to not happen. Even once we increase the number of threads to > > 1 if that many nodes go bad the RM would be stuck. Note that this was > stuck like this for approximately 9 hours. > Stack trace on hung AM launcher: > "pool-1-thread-1" prio=10 tid=0x000000004343e800 nid=0x3a4c in Object.wait() > [0x000000004fad2000] > java.lang.Thread.State: WAITING (on object monitor) > at java.lang.Object.wait(Native Method) > at java.lang.Object.wait(Object.java:485) > at org.apache.hadoop.ipc.Client.call(Client.java:1076) > - locked <0x00002aab05a4f3f0> (a org.apache.hadoop.ipc.Client$Call) > at > org.apache.hadoop.yarn.ipc.ProtoOverHadoopRpcEngine$Invoker.invoke(ProtoOverHadoopRpcEngine.java:135) > at $Proxy76.startContainer(Unknown Source) > at > org.apache.hadoop.yarn.api.impl.pb.client.ContainerManagerPBClientImpl.startContainer(ContainerManagerPBClientImpl.java:87) > at > org.apache.hadoop.yarn.server.resourcemanager.amlauncher.AMLauncher.launch(AMLauncher.java:118) > at > org.apache.hadoop.yarn.server.resourcemanager.amlauncher.AMLauncher.run(AMLauncher.java:265) > at > java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) > at java.lang.Thread.run(Thread.java:619) -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira