[SERVER-78943] Test LRUCache eviction behavior for large queryStats entries Created: 13/Jul/23 Updated: 29/Oct/23 Resolved: 08/Aug/23 |
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| Status: | Closed |
| Project: | Core Server |
| Component/s: | None |
| Affects Version/s: | None |
| Fix Version/s: | 7.1.0-rc0 |
| Type: | Task | Priority: | Major - P3 |
| Reporter: | Naama Bareket | Assignee: | Maddie Zechar |
| Resolution: | Fixed | Votes: | 0 |
| Labels: | None | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Issue Links: |
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| Assigned Teams: |
Query Optimization
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| Backwards Compatibility: | Fully Compatible | ||||||||||||||||||||
| Sprint: | QO 2023-08-07 | ||||||||||||||||||||
| Participants: | |||||||||||||||||||||
| Description |
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Investigate what would happen if a query was 16MB, since this is the max a BSONObj can hold. This is a concern in terms of if the query shape is then larger and the BSONObj refuses to grow. In addition, once the query stats store partitions are capped at 16MB, the entry may be larger than that cap and therefore evict all entries in the partition. |
| Comments |
| Comment by Githook User [ 08/Aug/23 ] |
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Author: {'name': 'madelinezec', 'email': 'mez2113@columbia.edu', 'username': 'madelinezec'}Message: |
| Comment by Maddie Zechar [ 26/Jul/23 ] |
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is this ticket looking for jstest coverage of large queries? or sys-perf coverage? or possibly both? |