[SERVER-85707] Adding $changeStreamSplitLargeEvent stage fails on v6.0 mongoS Created: 25/Jan/24  Updated: 06/Feb/24

Status: Needs Merge
Project: Core Server
Component/s: None
Affects Version/s: 6.0.12, 6.0.13
Fix Version/s: None

Type: Bug Priority: Major - P3
Reporter: Romans Kasperovics Assignee: Romans Kasperovics
Resolution: Unresolved Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Operating System: ALL
Sprint: QE 2024-02-05, QE 2024-02-19
Participants:

 Description   

In PM-1950 we introduced an internal flag $_generateV2ResumeTokens which can be used only when test commands are enabled.

This flag is supposed to be only set by a change stream user while opening a change stream cursor, but it is also set erroneously internally when $changeStreamSplitLargeEvent is present in the change stream pipeline, which leads to an assertion in production setups without test commands enabled.


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