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