unit test failures: job.xml already exists
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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
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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