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https://issues.apache.org/jira/browse/HADOOP-906?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Nigel Daley resolved HADOOP-906.
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Resolution: Cannot Reproduce
Fix Version/s: 0.11.0
After the patch for HADOOP-912 has been applied, I can no longer reproduce
these exception.
> unit test failures: job.xml already exists
> ------------------------------------------
>
> Key: HADOOP-906
> URL: https://issues.apache.org/jira/browse/HADOOP-906
> Project: Hadoop
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.10.1
> Reporter: Nigel Daley
> Assigned To: Mahadev konar
> Fix For: 0.11.0
>
>
> In my last 30 test runs on REL4 and Windows, I've seen this exception 6 times
> on Windows and 2 times on REL4 in the TestMiniMRDFSCaching or
> TestMiniMRClasspath logs:
> [junit] java.io.IOException: Target
> C:/trunk/build/test/mapred/local/50064_1/taskTracker/jobcache/job_0001/job.xml
> already exists
> [junit] at org.apache.hadoop.fs.FileUtil.checkDest(FileUtil.java:245)
> [junit] at org.apache.hadoop.fs.FileUtil.copy(FileUtil.java:80)
> [junit] at
> org.apache.hadoop.fs.LocalFileSystem.copyToLocalFile(LocalFileSystem.java:349)
> [junit] at
> org.apache.hadoop.fs.FileSystem.copyToLocalFile(FileSystem.java:842)
> [junit] at
> org.apache.hadoop.mapred.TaskTracker.localizeJob(TaskTracker.java:330)
> [junit] at
> org.apache.hadoop.mapred.TaskTracker.startNewTask(TaskTracker.java:823)
> [junit] at
> org.apache.hadoop.mapred.TaskTracker.offerService(TaskTracker.java:510)
> [junit] at
> org.apache.hadoop.mapred.TaskTracker.run(TaskTracker.java:852)
> [junit] at
> org.apache.hadoop.mapred.MiniMRCluster$TaskTrackerRunner.run(MiniMRCluster.java:141)
> [junit] at java.lang.Thread.run(Thread.java:595)
> In additon to the above exception, TestMiniMRClasspath also logged this
> exception further down in its log:
> [junit] 2007-01-05 12:23:24,027 INFO mapred.JobInProgress
> (JobInProgress.java:completedTask(531)) - Job job_0001 has completed
> successfully.
> [junit] 2007-01-05 12:23:24,058 INFO mapred.TaskTracker
> (TaskTracker.java:purgeJob(638)) - Received 'KillJobAction' for job: job_0001
> [junit] 2007-01-05 12:23:24,058 INFO mapred.TaskTracker
> (TaskTracker.java:cleanup(1167)) - Error cleaning up task runner:
> java.lang.NullPointerException
> [junit] at
> org.apache.hadoop.mapred.TaskTracker$TaskInProgress.cleanup(TaskTracker.java:1161)
> [junit] at
> org.apache.hadoop.mapred.TaskTracker$TaskInProgress.jobHasFinished(TaskTracker.java:1079)
> [junit] at
> org.apache.hadoop.mapred.TaskTracker.purgeJob(TaskTracker.java:650)
> [junit] at
> org.apache.hadoop.mapred.TaskTracker.access$100(TaskTracker.java:51)
> [junit] at
> org.apache.hadoop.mapred.TaskTracker$1.run(TaskTracker.java:151)
> [junit] at java.lang.Thread.run(Thread.java:595)
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