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From "Nigel Daley (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-912) TestMiniMRWithDFS fails sporadically
Date Sat, 20 Jan 2007 01:25:29 GMT
TestMiniMRWithDFS fails sporadically

                 Key: HADOOP-912
                 URL: https://issues.apache.org/jira/browse/HADOOP-912
             Project: Hadoop
          Issue Type: Bug
          Components: mapred
    Affects Versions: 0.10.1
            Reporter: Nigel Daley
         Assigned To: Arun C Murthy

TestMiniMRWithDFS fails sporadically with the following error:

junit.framework.AssertionFailedError: Spurious directory task_0001_m_000008_0 found in C:\hudson\workspace\Hadoop-WindowsSmokeTest\trunk\build\test\mapred\local\50068_0
	at org.apache.hadoop.mapred.TestMiniMRWithDFS.checkTaskDirectories(TestMiniMRWithDFS.java:128)
	at org.apache.hadoop.mapred.TestMiniMRWithDFS.testWithDFS(TestMiniMRWithDFS.java:163)

This tests checks that all mapred.local.dirs have been cleaned up after running a mapred job
on MiniMRCluster.  Effectively, this tests waits for TaskTracker.isIdle() to return true before
checking the dirs have been cleaned up.  I believe that HADOOP-639 reordered the cleanup code
so that isIdle() will return true before the directory cleanup is complete.

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