Upon a lost tracker, the task's start time is reset to 0
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Key: HADOOP-5276
URL: https://issues.apache.org/jira/browse/HADOOP-5276
Project: Hadoop Core
Issue Type: Bug
Components: mapred
Reporter: Amar Kamat
Priority: Critical
Upon lost tracker, the JIP (via JobTracker.lostTracker() ->
JobInProgress.failedTask()) hand crafts task status (marking the attempt as
KILLED) and updates the JobInProgress (via JobInProgress.updateTaskStatus()).
This status contains the attempt start time as 0. One major impact would be
that the listener will overwrite the last start time value with the new one and
hence the start tiem will get garbled.
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