[HADOOP-182] lost task trackers should not update status of completed jobs

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.1.1
• Fix Version/s: 0.2.0
• Assignee: Owen O'Malley
• Reporter: Owen O'Malley
• Created: 02/May/06 01:48
• Updated: 08/Jul/09 16:51
• Resolved: 06/May/06 01:09

Description

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.