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From "Ramya Sunil (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3759) ClassCastException thrown in -list-active-trackers when there are a few unhealthy nodes
Date Fri, 03 Feb 2012 02:25:53 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3759?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13199483#comment-13199483

Ramya Sunil commented on MAPREDUCE-3759:

+1 Tested the patch on a cluster with unhealthy nodes and saw that it returned correct list
of nodes. 
However the unhealthy node is being listed under the active node list too. Probably same as
> ClassCastException thrown in -list-active-trackers when there are a few unhealthy nodes
> ---------------------------------------------------------------------------------------
>                 Key: MAPREDUCE-3759
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3759
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 0.23.1
>            Reporter: Ramya Sunil
>            Assignee: Vinod Kumar Vavilapalli
>             Fix For: 0.23.1
>         Attachments: MAPREDUCE-3759-20120202.txt
> When there are a few blacklisted nodes in the cluster, "bin/mapred job -list-active-trackers"
throws "java.lang.ClassCastException: org.apache.hadoop.yarn.server.resourcemanager.resource.Resources$1
cannot be cast to org.apache.hadoop.yarn.api.records.impl.pb.ResourcePBImpl"

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