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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