[MCOL-5152] PP now puts data directly into EM input queue bypassing network hop Created: 2022-06-30  Updated: 2022-10-25  Resolved: 2022-07-27

Status: Closed
Project: MariaDB ColumnStore
Component/s: ExeMgr, PrimProc
Affects Version/s: 6.4.1
Fix Version/s: 22.08.1

Type: New Feature Priority: Major
Reporter: Roman Assignee: Daniel Lee (Inactive)
Resolution: Fixed Votes: 0
Labels: None

Issue Links:
Problem/Incident
is caused by MCOL-5001 Combine PrimProc and ExeMgr runtimes Closed
Sprint: 2021-17

 Description   

The local interaction b/w PP and EM now goes over a network socket and in case of a single-node installation the socket is not even compressed. This imposes extra latency working with a single-node.
This feature bypasses network hop for ByteStreams generated by BATCH_PRIMITIVE_RUN primitive jobs.

 Comments   
Comment by Roman [ 2022-07-04 ]

4QA this patch enables PP to bypass network hop sending data from PP to the local EM. It should reduce the query execution timings in general. The expected profit should be around 15%.

Comment by Daniel Lee (Inactive) [ 2022-07-27 ]

Build verified: 22.08-1 (#5095)

Passed by regression test

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