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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1138) Datanodes that are dead for a long long time should not show up in the UI
Date Wed, 05 Sep 2007 22:53:34 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1138?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12525247

Hadoop QA commented on HADOOP-1138:


http://issues.apache.org/jira/secure/attachment/12365214/HADOOP-1138.patch applied and successfully
tested against trunk revision r573081.

Test results:   http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/693/testReport/
Console output: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/693/console

> Datanodes that are dead for a long long time should not show up in the UI
> -------------------------------------------------------------------------
>                 Key: HADOOP-1138
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1138
>             Project: Hadoop
>          Issue Type: Bug
>          Components: dfs
>            Reporter: dhruba borthakur
>            Assignee: Raghu Angadi
>             Fix For: 0.15.0
>         Attachments: HADOOP-1138.patch, HADOOP-1138.patch, HADOOP-1138.patch
> Proposal 1:
> If a include files is used, then show all nodes (dead/alive) that are listed in the includes
file. If there isn't an include file, then display only nodes that have pinged this instance
of the namenode.
> Proposal2:
> A config variable specifies the time duration. The namenode, on a restart, purges all
datanodes that have not pinged for that time duration. The default value of this config variable
can be 1 week. 

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