Hung Tasks never time out.
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Key: MAPREDUCE-4089
URL: https://issues.apache.org/jira/browse/MAPREDUCE-4089
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: mrv2
Affects Versions: 0.23.2, 2.0.0, trunk
Reporter: Robert Joseph Evans
Assignee: Robert Joseph Evans
Priority: Blocker
The AM will timeout a task through mapreduce.task.timeout only when it does not
hear from the task within the given timeframe. On 1.0 a task must be making
progress, either by reading input from HDFS, writing output to HDFS, writing to
a log, or calling a special method to inform it that it is still making
progress.
This is because on 0.23 a status update which happens every 3 seconds is
counted as progress.
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