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https://issues.apache.org/jira/browse/HADOOP-2260?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12550214
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Konstantin Shvachko commented on HADOOP-2260:
---------------------------------------------
This is interesting.
printStatistics() is called in 2 places FSEditLog.close() and
FSEditLog.logSync().
Both methods wait() if FSEditLog is locked by another thread.
Is it possible that we have some kind of a deadlock there?
> TestMiniMRMapRedDebugScript times out
> -------------------------------------
>
> Key: HADOOP-2260
> URL: https://issues.apache.org/jira/browse/HADOOP-2260
> Project: Hadoop
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.16.0
> Environment: Linux
> Reporter: Konstantin Shvachko
> Assignee: Amareshwari Sri Ramadasu
> Fix For: 0.16.0
>
> Attachments: Hadoop-2260.log, testrun-2260.log
>
>
> I am running TestMiniMRMapRedDebugScript from trunc.
> This is what I see in the stdout:
> {code}
> 2007-11-22 02:21:23,494 WARN conf.Configuration
> (Configuration.java:loadResource(808)) -
> hadoop/build/test/mapred/local/1_0/taskTracker/jobcache/job_200711220217_0001/task_200711220217_0001_m_000000_0/job.xml:a
> attempt to override final parameter: hadoop.tmp.dir; Ignoring.
> 2007-11-22 02:21:28,940 INFO jvm.JvmMetrics (JvmMetrics.java:init(56)) -
> Initializing JVM Metrics with processName=MAP, sessionId=
> 2007-11-22 02:22:09,504 INFO mapred.MapTask (MapTask.java:run(127)) -
> numReduceTasks: 0
> 2007-11-22 02:22:42,434 WARN mapred.TaskTracker
> (TaskTracker.java:main(1982)) - Error running child
> java.io.IOException
> at
> org.apache.hadoop.mapred.TestMiniMRMapRedDebugScript$MapClass.map(TestMiniMRMapRedDebugScript.java:41)
> at
> org.apache.hadoop.mapred.TestMiniMRMapRedDebugScript$MapClass.map(TestMiniMRMapRedDebugScript.java:35)
> at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:50)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:192)
> at
> org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:1977)
> {code}
> Stderr and debugout both say: Bailing out.
> BTW on Windows everything works just fine.
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