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Posted to mapreduce-issues@hadoop.apache.org by "Vinod Kumar Vavilapalli (Updated) (JIRA)" <ji...@apache.org> on 2011/12/23 01:35:30 UTC

[jira] [Updated] (MAPREDUCE-3353) Need a RM->AM channel to inform AMs about faulty/unhealthy/lost nodes

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3353?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vinod Kumar Vavilapalli updated MAPREDUCE-3353:
-----------------------------------------------

    Priority: Critical  (was: Major)
    
> Need a RM->AM channel to inform AMs about faulty/unhealthy/lost nodes
> ---------------------------------------------------------------------
>
>                 Key: MAPREDUCE-3353
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3353
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: applicationmaster, mrv2, resourcemanager
>    Affects Versions: 0.23.0
>            Reporter: Vinod Kumar Vavilapalli
>            Assignee: Hitesh Shah
>            Priority: Critical
>             Fix For: 0.23.1
>
>
> When a node gets lost or turns faulty, AM needs to know about that event so that it can take some action like for e.g. re-executing map tasks whose intermediate output live on that faulty node.

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