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https://issues.apache.org/jira/browse/HADOOP-1332?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12500679
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Hadoop QA commented on HADOOP-1332:
-----------------------------------
Integrated in Hadoop-Nightly #107 (See
http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Nightly/107/)
> Sporadic unit test failures (TestMiniMRClasspath, TestMiniMRLocalFS,
> TestMiniMRDFSCaching)
> ------------------------------------------------------------------------------------------
>
> Key: HADOOP-1332
> URL: https://issues.apache.org/jira/browse/HADOOP-1332
> Project: Hadoop
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.13.0
> Reporter: Nigel Daley
> Assignee: Arun C Murthy
> Priority: Blocker
> Fix For: 0.13.0
>
> Attachments: copy-thread.patch, HADOOP-1332_1_20070529.patch,
> HADOOP-1332_2_20070530.patch
>
>
> Since April 22 I've been seeing sporadic failures of these tests on Windows:
> - TestMiniMRClasspath
> - TestMiniMRLocalFS
> - TestMiniMRDFSCaching
> The change log since then can be viewed starting at build 66:
> http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Nightly/66/
> The tests fail because they timeout.
> They timeout because one of the task trackers doesn't go idle.
> One of the task trackers doesn't go idle because a map fails and has to be
> killed.
> Reordered and annotated tests logs (my comments are in parenthesis):
> (map 0 executes and logs a 'done' and two 'completed' messages):
> [junit] 2007-05-03 21:19:40,516 INFO mapred.JobInProgress
> (JobInProgress.java:findNewTask(653)) - Choosing cached task tip_0001_m_000000
> [junit] 2007-05-03 21:19:40,516 INFO mapred.JobTracker
> (JobTracker.java:createTaskEntry(758)) - Adding task 'task_0001_m_000000_0'
> to tip tip_0001_m_000000, for tracker 'tracker_task000.com:2893'
> [junit] 2007-05-03 21:19:40,516 INFO mapred.TaskTracker
> (TaskTracker.java:startNewTask(1071)) - LaunchTaskAction: task_0001_m_000000_0
> [junit] 2007-05-03 21:19:45,655 INFO mapred.TaskTracker
> (TaskTracker.java:reportProgress(1284)) - task_0001_m_000000_0 1.0%
> hdfs://localhost:2882/testing/ext/input/part-0:0+10
> [junit] 2007-05-03 21:19:46,201 INFO mapred.TaskTracker
> (TaskTracker.java:reportProgress(1284)) - task_0001_m_000000_0 1.0%
> hdfs://localhost:2882/testing/ext/input/part-0:0+10
> [junit] 2007-05-03 21:19:46,201 INFO mapred.TaskTracker
> (TaskTracker.java:reportDone(1334)) - Task task_0001_m_000000_0 is done.
> [junit] 2007-05-03 21:19:46,357 INFO mapred.JobInProgress
> (JobInProgress.java:completedTask(734)) - Task 'task_0001_m_000000_0' has
> completed tip_0001_m_000000 successfully.
> [junit] 2007-05-03 21:19:46,357 INFO mapred.TaskInProgress
> (TaskInProgress.java:completedTask(475)) - Task 'task_0001_m_000000_0' has
> completed.
> (map 2 executes and logs a 'done' message but no 'completed' messages. It
> is eventually killed):
> [junit] 2007-05-03 21:19:40,594 INFO mapred.JobInProgress
> (JobInProgress.java:findNewTask(653)) - Choosing cached task tip_0001_m_000002
> [junit] 2007-05-03 21:19:40,594 INFO mapred.JobTracker
> (JobTracker.java:createTaskEntry(758)) - Adding task 'task_0001_m_000002_0'
> to tip tip_0001_m_000002, for tracker 'tracker_task002.com:2902'
> [junit] 2007-05-03 21:19:40,594 INFO mapred.TaskTracker
> (TaskTracker.java:startNewTask(1071)) - LaunchTaskAction: task_0001_m_000002_0
> [junit] 2007-05-03 21:19:46,295 INFO mapred.TaskTracker
> (TaskTracker.java:reportProgress(1284)) - task_0001_m_000002_0 0.0%
> hdfs://localhost:2882/testing/ext/input/part-0:20+10
> [junit] 2007-05-03 21:19:46,310 INFO mapred.TaskTracker
> (TaskTracker.java:reportDone(1334)) - Task task_0001_m_000002_0 is done.
> ...
> [junit] 2007-05-03 21:29:52,957 INFO mapred.TaskTracker
> (TaskTracker.java:markUnresponsiveTasks(909)) - task_0001_m_000002_0: Task
> failed to report status for 606 seconds. Killing.
> (long thread dump)
> (shutting down MiniMRCluster)
> [junit] Waiting for task tracker tracker_task002.com:2902 to be idle.
> [junit] Waiting for task tracker tracker_task002.com:2902 to be idle.
> [junit] Waiting for task tracker tracker_task002.com:2902 to be idle.
> [junit] Waiting for task tracker tracker_task002.com:2902 to be idle.
> [junit] Waiting for task tracker tracker_task002.com:2902 to be idle.
> [junit] Waiting for task tracker tracker_task002.com:2902 to be idle.
> ... (repeated until the test times out)
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