[HDFS-14286] Logging stale datanode information

• Type: Improvement
• Status: Resolved
• Priority: Trivial
• Resolution: Fixed
• Affects Version/s: 3.1.2
• Fix Version/s: 3.3.0
• Component/s: hdfs
• Labels: supportability
• Assignee: Karthik Palanisamy
• Reporter: Karthik Palanisamy
• Created: 16/Feb/19 10:22
• Updated: 20/Feb/19 01:03
• Resolved: 20/Feb/19 01:03

Description

Hard us to track stale Datanode information other than Namenode metrics but this should be monitored. We need warning message at-least in the Namenode log for debugging purpose.