[SERVER-80659] Add section on read preference in repl arch guide Created: 31/Aug/23  Updated: 09/Nov/23  Resolved: 09/Nov/23

Status: Closed
Project: Core Server
Component/s: None
Affects Version/s: None
Fix Version/s: 7.3.0-rc0

Type: Task Priority: Major - P3
Reporter: Kaitlin Mahar Assignee: Ali Mir
Resolution: Fixed Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Assigned Teams:
Replication
Backwards Compatibility: Fully Compatible
Sprint: Repl 2023-09-18, Repl 2023-10-02, Repl 2023-10-16, Repl 2023-10-30, Repl 2023-11-13
Participants:

 Description   

Right now read preference is very briefly mentioned in the intro the arch guide. It is also briefly discussed in mongo/src/client/README.md. But it would be good to expand on this and discuss things like:

  • how and when external clients communicate read preference (possibly include links to driver specs where appropriate)
  • how and when internal clients, including mongos, communicate read preference 
  • how we handle race conditions with server state changing after it is selected based on a read preference


 Comments   
Comment by Githook User [ 09/Nov/23 ]

Author:

{'name': 'Ali Mir', 'email': 'ali.mir@mongodb.com', 'username': 'ali-mir'}

Message: SERVER-80659 Add read preference section in replication architecture guide
Branch: master
https://github.com/mongodb/mongo/commit/7df3b0d8292ffde9e061754c5c038021ec18c166

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