[IMPALA-7300] Clean up items from KRPC milestone 1

• Type: Task
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: Impala 2.12.0, Impala 3.1.0
• Component/s: Distributed Exec
• Epic Link: Impala Scalability Improvement
• Target Version: Product Backlog
• Epic Color: ghx-label-8
• Assignee: Unassigned
• Reporter: Michael Ho
• Created: 15/Jul/18 22:59
• Updated: 15/Jul/18 22:59

Description

This is the umbrella task tracking various cleanup items from KRPC milestone 1 (IMPALA-2567).

Sub-Tasks

• Large payload going through exchange results in lots of untracked memory in the form of a string: Resolved
• Rethink data-stream sender/receiver startup sequencing: Open
• Rethink the end-to-end queuing at KrpcDataStreamReceiver: Open
• Remove shared ownership of KrpcDataStreamRecvr: Open
• DataStreamSender should transparently handle some connection reset by peer: Resolved
• DataStreamMgr::Cancel() should take a query ID instead of a finst ID: Resolved
• Better flow-control for TransmitData() with KRPC: Open