[HADOOP-5780] Fix slightly confusing log from "-metaSave" on NameNode

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.20.0
• Fix Version/s: 0.21.0
• Assignee: Raghu Angadi
• Reporter: Raghu Angadi
• Created: 06/May/09 21:19
• Updated: 24/Aug/10 20:37
• Resolved: 12/May/09 23:03

Description

After HADOOP-4103, "-metaSave" on NameNode prints "MISSING" in the line for a block that does not have any good replicas left.

e.g. :

Metasave: Blocks waiting for replication: 1
blk_6735500019364591152_0 (replicas: l: 0 d: 0 c: 2 e: 0 MISSING) 74.6.132.200:50010 :  192.168.0.107:50010 :

"0 MISSING" in the log might imply to the user that there is no missing block, though it implies "e(xcess replicas) : 0".

We should fix that. Also as part of this I would like to indicate which datanodes are decommissioned or contain the corrupt replicas.