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From "Hemanth Yamijala (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-4323) Start times for some tasks are missing from task reports after job tracker restart
Date Wed, 01 Oct 2008 10:53:44 GMT
Start times for some tasks are missing from task reports after job tracker restart
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                 Key: HADOOP-4323
                 URL: https://issues.apache.org/jira/browse/HADOOP-4323
             Project: Hadoop Core
          Issue Type: Bug
          Components: mapred
    Affects Versions: 0.19.0
            Reporter: Hemanth Yamijala


When a JobTracker with the {{mapred.jobtracker.restart.recover}} option turned on, restarts,
it recovers task statuses from all tasks recorded in the history for running jobs. Task trackers
rejoin the restarted JobTracker and report the statuses of the tasks they had last run. These
tasks' start time is set to 0 in the task reports on the restarted JobTracker. This is as
seen in the web UI, or from the value of {{TaskReport.startTime}} retrieved from the job client.

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