[HADOOP-1333] UndeclaredThrowableException when TaskTracker shutting down

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.13.0
• Component/s: ipc
• Assignee: Unassigned
• Reporter: Nigel Daley
• Created: 04/May/07 22:30
• Updated: 11/Aug/11 18:57
• Resolved: 11/Aug/11 18:57

Description

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.