[SERVER-83218] Implement the wire protocol version switch on FCV gossip-in Created: 14/Nov/23  Updated: 24/Nov/23

Status: Backlog
Project: Core Server
Component/s: Sharding, Upgrade/Downgrade
Affects Version/s: None
Fix Version/s: None

Type: Task Priority: Major - P3
Reporter: Kaloian Manassiev Assignee: Backlog - Catalog and Routing
Resolution: Unresolved Votes: 0
Labels: 8.0-Make-All-Deployments-Sharded-Clusters
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Depends
is depended on by SERVER-83222 Implement end-to-end upgrade code pat... Backlog
Assigned Teams:
Catalog and Routing
Participants:

 Description   

This task is to implement the necessary VectorClock (and possibly MongoD-local changes) so that upon full FCV upgrade, shards can indicate to upstream routers that they are fully upgraded and that they can start advertising the new wire protocol version as per upgrade step U5.


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