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From "Amareshwari Sriramadasu (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5548) Observed negative running maps on the job tracker
Date Fri, 03 Apr 2009 05:11:12 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5548?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12695240#action_12695240
] 

Amareshwari Sriramadasu commented on HADOOP-5548:
-------------------------------------------------

Hudson is not able to run core tests for some reason. All core tests passed on my machine.
Patch adds synchronization to RecoveryManager. Existing tests TestJobTrackerRestart, TestRecoveryManager
will test the code changes.

> Observed negative running maps on the job tracker
> -------------------------------------------------
>
>                 Key: HADOOP-5548
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5548
>             Project: Hadoop Core
>          Issue Type: Bug
>    Affects Versions: 0.20.0
>            Reporter: Owen O'Malley
>            Assignee: Amareshwari Sriramadasu
>            Priority: Blocker
>             Fix For: 0.19.2, 0.20.0
>
>         Attachments: patch-5548-1.txt, patch-5548.txt
>
>
> We saw in both the web/ui and cli tools:
> {noformat}
> Cluster Summary (Heap Size is 11.7 GB/13.37 GB)
> Maps  Reduces Total       Nodes  Map Task  Reduce Task  Avg.     Blacklisted 
>               Submissions        Capacity   Capacity   Tasks/Node Nodes
> -971  0       133         434     1736        1736      8.00        0
> {noformat}

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