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From "Eli Collins (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HADOOP-1333) UndeclaredThrowableException when TaskTracker shutting down
Date Thu, 11 Aug 2011 18:58:27 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-1333?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eli Collins resolved HADOOP-1333.
---------------------------------

    Resolution: Fixed

> UndeclaredThrowableException when TaskTracker shutting down
> -----------------------------------------------------------
>
>                 Key: HADOOP-1333
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1333
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: ipc
>    Affects Versions: 0.13.0
>            Reporter: Nigel Daley
>
> We've been seeing this exception in unit tests on Windows since HADOOP-1191 was committed.
 For instance in TestMiniMRClasspath.
>     [junit] 2007-05-03 21:19:21,447 ERROR mapred.TaskTracker (TaskTracker.java:offerService(783))
- Caught exception: java.lang.reflect.UndeclaredThrowableException
>     [junit] 	at org.apache.hadoop.mapred.$Proxy6.heartbeat(Unknown Source)
>     [junit] 	at org.apache.hadoop.mapred.TaskTracker.transmitHeartBeat(TaskTracker.java:834)
>     [junit] 	at org.apache.hadoop.mapred.TaskTracker.offerService(TaskTracker.java:736)
>     [junit] 	at org.apache.hadoop.mapred.TaskTracker.run(TaskTracker.java:1121)
>     [junit] 	at org.apache.hadoop.mapred.MiniMRCluster$TaskTrackerRunner.run(MiniMRCluster.java:140)
>     [junit] 	at java.lang.Thread.run(Thread.java:595)
>     [junit] Caused by: java.lang.InterruptedException
>     [junit] 	at java.lang.Object.wait(Native Method)
>     [junit] 	at org.apache.hadoop.ipc.Client.call(Client.java:466)
>     [junit] 	at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:165)
>     [junit] 	... 6 more
> It doesn't seem to cause the tests to fail, but it is logged as an error when a TaskTracker
is being shutdown.

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