[HBASE-22440] HRegionServer#getWalGroupsReplicationStatus() throws NPE

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.1.4
• Fix Version/s: 3.0.0-alpha-1, 2.2.0, 2.3.0, 2.1.5
• Component/s: regionserver, Replication
• Hadoop Flags: Reviewed
• Assignee: puleya7
• Reporter: puleya7
• Created: 17/May/19 08:15
• Updated: 14/Aug/19 02:35
• Resolved: 23/May/19 09:38

Description

Precondition:

hbase.balancer.tablesOnMaster = true

hbase.balancer.tablesOnMaster.systemTablesOnly = true

 

Open the rs page of the master throws NullPointException, because replicationSourceHandler never initialized.

HRegionServer#getWalGroupsReplicationStatus() need check [is HMaster && CAN'T host user region].