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From "Mahadev konar (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-2708) [MR-279] Design and implement MR Application Master recovery
Date Sat, 22 Oct 2011 22:58:32 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2708?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13133507#comment-13133507

Mahadev konar commented on MAPREDUCE-2708:

 I tried the latest patch out on 0.23, it worked for me. I killed a randomwriter job at 83%
map and 0% reduce and the AM restarted with 83% map and 0% reduce. Nicholas tells me that
the error above could just be a bug in trunk due to HDFS-2181 or such. 

Vinod, are you using trunk or 0.23? If trunk, can you try it out with 0.23?

> [MR-279] Design and implement MR Application Master recovery
> ------------------------------------------------------------
>                 Key: MAPREDUCE-2708
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2708
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>          Components: applicationmaster, mrv2
>    Affects Versions: 0.23.0
>            Reporter: Sharad Agarwal
>            Assignee: Sharad Agarwal
>            Priority: Blocker
>             Fix For: 0.23.0
>         Attachments: MAPREDUCE-2708-20111021.1.txt, MAPREDUCE-2708-20111021.txt, MAPREDUCE-2708-20111022.txt,
mr2708_v1.patch, mr2708_v2.patch
> Design recovery of MR AM from crashes/node failures. The running job should recover from
the state it left off.

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