[jira] [Closed] (MAPREDUCE-4089) Hung Tasks never time out.

["Arun C Murthy (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MAPREDUCE-4089?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Arun C Murthy closed MAPREDUCE-4089.
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> Hung Tasks never time out. 
> ---------------------------
>
>                 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-alpha, trunk
>            Reporter: Robert Joseph Evans
>            Assignee: Robert Joseph Evans
>            Priority: Blocker
>             Fix For: 0.23.3, 2.0.2-alpha
>
>         Attachments: MR-4089.txt, MR-4089.txt, MR-4089.txt, MR-4089.txt, MR-4089.txt
>
>
> 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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