[SERVER-57354] [v5.0] Disable background validation on capped collections in FCV 4.4 Created: 02/Jun/21  Updated: 29/Oct/23  Resolved: 02/Jun/21

Status: Closed
Project: Core Server
Component/s: None
Affects Version/s: None
Fix Version/s: 5.0.0-rc1

Type: Bug Priority: Major - P3
Reporter: Gregory Wlodarek Assignee: Gregory Wlodarek
Resolution: Fixed Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Depends
Backwards Compatibility: Fully Compatible
Operating System: ALL
Sprint: Execution Team 2021-06-14
Participants:
Linked BF Score: 32

 Description   

Capped collections perform un-timestamped writes to delete expired documents in FCV <= 4.4, but all documents will have had an assigned timestamp when first inserted. This breaks contracts with the storage engine regarding mixed-use timestamps and means that point-in-time reads do not work correctly on capped collections.

As a result, background validation when reading documents that have just been deleted.



 Comments   
Comment by Githook User [ 02/Jun/21 ]

Author:

{'name': 'Gregory Wlodarek', 'email': 'gregory.wlodarek@mongodb.com', 'username': 'GWlodarek'}

Message: SERVER-57354 Disable background validation on capped collections in FCV 4.4
Branch: v5.0
https://github.com/mongodb/mongo/commit/d9ac430abdc7958dd8b3acd8dfc25a86d31e6df5

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