[SERVER-80771] Implement cluster-wide maxWireVersion discovery mechanism Created: 05/Sep/23  Updated: 19/Sep/23  Resolved: 19/Sep/23

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

Type: New Feature Priority: Major - P3
Reporter: Patrick Freed Assignee: Patrick Freed
Resolution: Won't Do Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Related
related to SERVER-81068 Support feature discovery in drivers ... Open
Participants:

 Description   

In order to ensure that gRPC-based clients can properly identify a maxWireVersion supported by the entire routing layer through a load balancer, the routers need to report it via the gRPC metadata. In order for the routing layer itself to report a consistent value, a wire version discovery mechanism needs to be implemented. See the design for more details: https://docs.google.com/document/d/1MoNt1rCEXrOZplNPQrnEYdBxIoqvSNvXUAts4z78cv8/edit#heading=h.gq89gct6uf3u



 Comments   
Comment by Patrick Freed [ 19/Sep/23 ]

Closing out in favor of SERVER-81068, which should address this issue in a transport-agnostic way.

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