[HDFS-12056] NPE while getting list of live nodes via jmx

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.7.3
• Assignee: Unassigned
• Reporter: Kihwal Lee
• Created: 28/Jun/17 14:01
• Updated: 28/Jun/17 14:16

Description

I saw this back in February during an upgrade. A namenode was restarted and all nodes registered, but some didn't block reported. Clicking datanodes tab in the web UI wasn't working, but other UI components were working. This got resolved later on its own.