[DOCS-13381] Investigate changes in SERVER-44508: Add maxAwaitTimeMS and topologyVersion to isMaster command Created: 31/Jan/20  Updated: 13/Nov/23  Due: 01/May/20  Resolved: 27/Apr/20

Status: Closed
Project: Documentation
Component/s: manual, Server
Affects Version/s: None
Fix Version/s: 4.3.3, Server_Docs_20231030, Server_Docs_20231106, Server_Docs_20231105, Server_Docs_20231113

Type: Task Priority: Major - P3
Reporter: Backlog - Core Eng Program Management Team Assignee: Kay Kim (Inactive)
Resolution: Fixed Votes: 0
Labels: docs-administration
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Documented
documents SERVER-44508 Add maxAwaitTimeMS and topologyVersio... Closed
Participants:
Days since reply: 3 years, 41 weeks, 2 days ago
Epic Link: DOCS: 4.4 Server Release Work

 Description   

Description

Downstream Change Summary

The isMaster response includes topologyVersion: {processId: <objectID>, counter: <long>}. The processId is constant for the process's lifetime. The counter increments on significant topology changes such as stepdown, stepup, reconfig, featureCompatibilityVersion change, or anything else that changes the isMaster response.

This isMaster command accepts two new fields topologyVersion (same type as above) and maxAwaitTimeMS. When these fields are supplied, the isMaster command waits up to maxAwaitTimeMS for the server's topologyVersion to exceed the client's requested topologyVersion. I'm not certain we should document these fields, since they are only expected to be used by mongos and drivers.

Description of Linked Ticket

Also return a dummy topologyVersion field in the isMaster reply.

Scope of changes

Impact to Other Docs

MVP (Work and Date)

Resources (Scope or Design Docs, Invision, etc.)



 Comments   
Comment by Githook User [ 27/Apr/20 ]

Author:

{'name': 'Kay Kim', 'email': 'kay.kim@10gen.com', 'username': 'kay-kim'}

Message: DOCS-13381: isMaster.topologyVersion
Branch: master
https://github.com/mongodb/docs/commit/27cda1b34a677db46f4569e27dd969c496c77b69

Comment by Ravind Kumar (Inactive) [ 31/Jan/20 ]

Note as per docs description, this might be a NO-OP. Discuss before starting work.

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