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Type:
Task
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Resolution: Works as Designed
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Priority:
Minor - P4
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None
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Affects Version/s: None
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Component/s: None
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None
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Query Optimization
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0
In the existing design cursors remain alive even if the collection they refer to is dropped. Idle cursors are cleaned up periodically. This leads to a prospective corner case uncovered by BF-33889. The config fuzzer uncovered a case where despite dropping a collection, existing cursor over the collection may still return results, due to caching in the 'AsyncResultsMerger'.
In this ticket:
- Reevaluate the consistency guarantees for data access after dropping collection.
- Examine the importance of the corner case that led to this problem. Specifically, 'internalQueryFindCommandBatchSize' parameter setting strategy and the possibility this setting leading to an incident.
- Design and implement a new strategy to set, use and restrict values for batch size values for both mongoS and mongoD.
- related to
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SERVER-92085 Skip tailable cursor invalidation test for config fuzzer
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- Closed
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