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Posted to mapreduce-issues@hadoop.apache.org by "Hitesh Shah (Assigned) (JIRA)" <ji...@apache.org> on 2012/01/20 22:04:39 UTC
[jira] [Assigned] (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 ]
Hitesh Shah reassigned MAPREDUCE-3353:
--------------------------------------
Assignee: (was: Hitesh Shah)
> 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
> 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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