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From "dhruba borthakur (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-1138) Datanodes that are dead for a long long time should not show up in the UI
Date Wed, 21 Mar 2007 22:39:32 GMT
Datanodes that are dead for a long long time should not show up in the UI
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                 Key: HADOOP-1138
                 URL: https://issues.apache.org/jira/browse/HADOOP-1138
             Project: Hadoop
          Issue Type: Bug
          Components: dfs
            Reporter: dhruba borthakur
         Assigned To: dhruba borthakur


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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