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