[SERVER-34739] Change the default to 1 for the task executor pool Created: 27/Apr/18  Updated: 29/Oct/23  Resolved: 27/Apr/18

Status: Closed
Project: Core Server
Component/s: Networking
Affects Version/s: None
Fix Version/s: 4.0.0-rc0

Type: New Feature Priority: Major - P3
Reporter: Mira Carey Assignee: Mira Carey
Resolution: Fixed Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Documented
is documented by DOCS-11693 Docs for SERVER-34739: Change the def... Closed
Related
related to SERVER-28568 Parameter taskExecutorPoolSize is onl... Closed
related to SERVER-32270 Use shared NetworkInterfaceASIO in mo... Closed
related to SERVER-32801 Simplify connPoolStats to report stat... Closed
Backwards Compatibility: Fully Compatible
Sprint: Platforms 2018-05-07
Participants:
Case:

 Description   

This changes the default to 1 for the task executor pool (meaning we also have 1 egress connection pool for user operations in mongos).

In order to mitigate the performance hit, a targetted optimization has been added for linux which uses client-thread based polling in the ARS.



 Comments   
Comment by Githook User [ 27/Apr/18 ]

Author:

{'email': 'jcarey@argv.me', 'username': 'hanumantmk', 'name': 'Jason Carey'}

Message: SERVER-34739 Migrate to 1 connpool in ARS

Migrate to 1 connection pool in mongos.

This change involves the introduction of a transport layer baton, which
improves perf for a particular transport layer when doing local
scatter/gather operations.
Branch: master
https://github.com/mongodb/mongo/commit/4ddf18bcf4d517c3dc0f005f9222ffaab9a86ffa

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