[COMPASS-6209] Investigate changes in PM-3014: Add concurrency to the chunk migration code Created: 17/Oct/22  Updated: 07/Dec/22  Resolved: 19/Oct/22

Status: Closed
Project: Compass
Component/s: None
Affects Version/s: None
Fix Version/s: No version

Type: Investigation Priority: Major - P3
Reporter: Backlog - Core Eng Program Management Team Assignee: Unassigned
Resolution: Done Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Depends
Epic Link: COMPASS-5986
Documentation Changes: Not Needed

 Description   
Original Downstream Change Summary

We are providing a way to add a server parameter (setParameter) to change the destination shard insert concurrency.

syntax changes -
{setParameter: { migrationConcurrency: N }}

Description of Linked Ticket

Summary

This project is for user-defined concurrency level to chunk migrations as a result of the spike tracked in PM-2740.

Motivation

During PM-2740 we implemented a proof of concept to realize a significant improvement in throughput. The purpose of this work is to productionize these changes.


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