[SERVER-33408] Create a toggle FCV up and down concurrency test for sharding config schema changes Created: 20/Feb/18  Updated: 12/Dec/23

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

Type: Task Priority: Major - P3
Reporter: Dianna Hohensee (Inactive) Assignee: Backlog - Cluster Scalability
Resolution: Unresolved Votes: 1
Labels: sharding-common-backlog
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Assigned Teams:
Cluster Scalability
Participants:

 Description   

The toggle_feature_compatibility.js test shook out a fairly serious UUID upgrade/downgrade bug due to concurrency problems with createCollection (see SERVER-32851). It is no longer relevant in v4.0 and is being removed. Given its success, however, I recommend a similar test, modeled after toggle_feature_compatibilty.js, be introduced for sharding config schema changes.


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