[HBASE-25311] ui throws NPE

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha-1, 2.2.3
• Fix Version/s: 3.0.0-alpha-1, 2.4.0, 2.2.7, 2.3.4
• Assignee: Bo Cui
• Reporter: Bo Cui
• Created: 20/Nov/20 09:11
• Updated: 23/Nov/20 20:24
• Resolved: 23/Nov/20 05:32

Description

https://github.com/apache/hbase/blob/eca904e0fb438461a8da3f37cea3eaf496988be9/hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java#L3624

if rs has invalid znode, and restart master, ui will throw NPE.
i encountered this problem during the upgrade.

workaround: restart HBase.

Issue Links

• links to: GitHub Pull Request #2688