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From "Raghu Angadi (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-1138) Datanodes that are dead for a long long time should not show up in the UI
Date Wed, 05 Sep 2007 21:37:34 GMT

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

Raghu Angadi updated HADOOP-1138:
---------------------------------

    Attachment: HADOOP-1138.patch


Earlier patch did not show the nodes that were listed in exlude file (dfs.hosts.exlude). But
this broke TestDecommission. The current patch treats these nodes just like the normal dead
nodes.

> 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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