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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