[HDFS-1636] If dfs.name.dir points to an empty dir, namenode format shouldn't require confirmation

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.23.0
• Fix Version/s: 0.23.0
• Component/s: namenode
• Hadoop Flags: Reviewed
• Release Note: If dfs.name.dir points to an empty dir, namenode -format no longer requires confirmation.
• Assignee: Harsh J
• Reporter: Todd Lipcon
• Created: 23/Feb/11 19:16
• Updated: 02/Jun/11 17:43
• Resolved: 01/Jun/11 21:58

Description

Right now, running namenode -format when dfs.name.dir is configured to a dir which exists but is empty still asks for confirmation. This is unnecessary since it isn't blowing away any real data.