[HADOOP-1846] DatanodeReport should distinguish live datanodes from dead datanodes

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.14.1
• Fix Version/s: 0.15.0
• Assignee: Hairong Kuang
• Reporter: Hairong Kuang
• Created: 06/Sep/07 17:03
• Updated: 08/Jul/09 16:42
• Resolved: 12/Sep/07 22:10

Description

DatanodeReport returns both live and dead datanodes and there is no way to distinguish live nodes from dead nodes. But some applications are interested in only live datanodes. I propose that instead of haveing one datanodeReport, dfs supports two reports: liveDatanodeReport and deadDatanodeReport.

Issue Links

• is depended upon by: HADOOP-1652 Rebalance data blocks when new data nodes added or data nodes become full