[HDFS-2985] Improve logging when replicas are marked as corrupt

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.23.0
• Fix Version/s: 0.23.2
• Component/s: namenode
• Target Version/s: 0.23.2
• Hadoop Flags: Reviewed
• Assignee: Todd Lipcon
• Reporter: Todd Lipcon
• Created: 22/Feb/12 21:03
• Updated: 28/Mar/12 09:23
• Resolved: 23/Feb/12 01:23

Description

Currently in 0.23 and trunk, there is no logging which indicates why a replica has been marked corrupt, only that it has been marked corrupt. Because corruption can be a serious problem (and should be very rare), it's worth logging more detail whenever a block is added to the corrupt replica map.