[HBASE-23275] Track active master server name in ActiveMasterManager

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha-1
• Fix Version/s: 3.0.0-alpha-1, 2.3.0, 1.7.0
• Component/s: master
• Assignee: Bharath Vissapragada
• Reporter: Bharath Vissapragada
• Created: 10/Nov/19 00:10
• Updated: 07/Apr/21 07:16
• Resolved: 20/Nov/19 19:46

Description

We already track whether the cluster has an active master, it is just another RPC to the zookeeper to fetch the active master's hostname. Tracking it helps load balance client requests to fetch the active master information.

Issue Links

• blocks: HBASE-23304 Implement RPCs needed for master based registry
• links to: GitHub Pull Request #812
• links to: GitHub Pull Request #1096