[HBASE-26172] Deprecate MasterRegistry

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.5.0, 3.0.0-alpha-2
• Component/s: Client
• Hadoop Flags: Reviewed
• Release Note: MasterRegistry is deprecated. Please use RpcConnectionRegistry instead.
• Assignee: Duo Zhang
• Reporter: Duo Zhang
• Created: 05/Aug/21 09:37
• Updated: 15/Nov/23 08:29
• Resolved: 19/Aug/21 08:31

Description

Maybe in some environment we still want to use master as registry endpoint, but this should be controlled at cluster side, not client side.

 

The implementation of MasterRegistry is almost the same with RpcConnectionRegistry except that it uses getMasters instead of getBootstrapNodes to refresh the ‘bootstrap’ nodes connected to. So we could add configs in server side to control what nodes we want to return to client in getBootstrapNodes, i.e, master or region server, then the RpcConnectionRegistry can fully replace the old MasterRegistry. As part of this change, we deprecate the MasterRegistry.

==== Update ====
We send out an email to mailing list, and there is no objections on not returning masters as registry endpoints, so here we decide to just deprecated MasterRegistry.

Issue Links

• links to: GitHub Pull Request #3566