[IMPALA-4670] Add RpcMgr to interface between Impala and KRPC library

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Impala 2.8.0
• Fix Version/s: Impala 2.11.0
• Component/s: Distributed Exec
• Target Version: Product Backlog
• Assignee: Michael Ho
• Reporter: Henry Robinson
• Created: 15/Dec/16 17:46
• Updated: 06/Oct/17 17:44
• Resolved: 06/Oct/17 17:44

Description

Add the necessary abstractions to integrate KRPC into Impala's codebase. Particularly, add an RpcMgr that allows:

• acceptor threads to be started on a port
• service (de)registration
• proxy construction

This replaces ThriftServer and ThriftClient / ConnectionCache for backend services.