[HBASE-28377] Fallback to simple is broken for blocking rpc client

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.6.0, 2.4.18, 2.5.8, 3.0.0-beta-2
• Component/s: IPC/RPC
• Labels: pull-request-available
• Hadoop Flags: Reviewed
• Assignee: Duo Zhang
• Reporter: Duo Zhang
• Created: 18/Feb/24 07:28
• Updated: 21/Feb/24 19:48
• Resolved: 19/Feb/24 15:13

Description

Found this when implementing HBASE-28321, we do not have a test for fallback to simple with blocking rpc client...

Issue Links

• blocks: HBASE-28321 RpcConnectionRegistry is broken when security is enabled and we use different principal for master and region server
• links to: GitHub Pull Request #5690