lost task trackers should not update status of completed jobs
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Key: HADOOP-182
URL: http://issues.apache.org/jira/browse/HADOOP-182
Project: Hadoop
Type: Bug
Components: mapred
Versions: 0.1.1
Reporter: Owen O'Malley
Assigned to: Owen O'Malley
Priority: Minor
When a Task Tracker is lost (by not sending a heartbeat for 10 minutes), the
JobTracker marks the tasks that were active on that node as failed. There are
two issues:
1. No task from a completed or failed job should be modified.
2. No reduces should be marked as failed, since their output is in dfs and
therefore not only on the dead node.
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