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Hemanth Yamijala (JIRA) |
at Mar 13, 2009 at 1:08 pm
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https://issues.apache.org/jira/browse/HADOOP-5487?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12681696#action_12681696 ]
Hemanth Yamijala commented on HADOOP-5487:
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Following was the exception trace on such a task:
java.io.IOException: Mkdirs failed to create /path/to/mapred-local/taskTracker/jobcache/job_200903130908_0051/work
at org.apache.hadoop.mapred.TaskTracker.localizeJob(TaskTracker.java:829)
at org.apache.hadoop.mapred.TaskTracker.startNewTask(TaskTracker.java:1743)
at org.apache.hadoop.mapred.TaskTracker.access$1200(TaskTracker.java:97)
at org.apache.hadoop.mapred.TaskTracker$TaskLauncher.run(TaskTracker.java:1708)
Few tasks failed while creating the work directory for a job, when job tracker was restarted
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Key: HADOOP-5487
URL:
https://issues.apache.org/jira/browse/HADOOP-5487Project: Hadoop Core
Issue Type: Bug
Components: mapred
Reporter: Hemanth Yamijala
A randomwriter job was running when the job tracker restarted. After the jobtracker restarted, some tasktrackers were sent a reinit action. After this, some new tasks of the random writer were scheduled to be run on the same task trackers. These failed in the job localization while creating the work directory. However, the next attempts of the same job ran successfully and the job succeeded. This happened in about 1% of the total number of tasks.
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