[SERVER-64049] Investigate read behavior of unsharded/sharded collections during yields Created: 28/Feb/22  Updated: 06/Dec/22  Resolved: 02/Mar/22

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

Type: Bug Priority: Major - P3
Reporter: Eric Cox (Inactive) Assignee: [DO NOT USE] Backlog - Sharding Team
Resolution: Duplicate Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Depends
depends on SERVER-64128 Investigate behavior when query again... Open
Assigned Teams:
Sharding
Participants:

 Description   

The owner of this ticket should investigate if the critical section is checked during a yield. It seems that there are no such checks baked into the query plan. Suppose a collection begins unsharded, a query runs then yields and then becomes sharded. On yield recovery what is the behavior of the system in this scenario?


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