[HADOOP-1138] Datanodes that are dead for a long long time should not show up in the UI

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Fix Version/s: 0.15.0
• Assignee: Raghu Angadi
• Reporter: Dhruba Borthakur
• Created: 21/Mar/07 22:37
• Updated: 08/Jul/09 16:42
• Resolved: 20/Sep/07 23:54

Description

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.