[SERVER-57579] DocumentSourceSequentialCache doesn't clone, ruining non-correlated $lookup pipeline caching in sharded deployments Created: 09/Jun/21 Updated: 15/Jun/21 Resolved: 15/Jun/21 |
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| Status: | Closed |
| Project: | Core Server |
| Component/s: | None |
| Affects Version/s: | 4.4.0, 5.0.0-rc0 |
| Fix Version/s: | None |
| Type: | Bug | Priority: | Major - P3 |
| Reporter: | Charlie Swanson | Assignee: | Ted Tuckman |
| Resolution: | Duplicate | Votes: | 0 |
| Labels: | None | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Issue Links: |
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| Operating System: | ALL | ||||||||||||||||||||||||||||||||||||||||||||
| Sprint: | Query Optimization 2021-06-28 | ||||||||||||||||||||||||||||||||||||||||||||
| Participants: | |||||||||||||||||||||||||||||||||||||||||||||
| Description |
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As outlined in The impact of this problem is quite large. It means that your performance of a non-correlated $lookup might degrade when you move from a replica set to a sharded cluster. |
| Comments |
| Comment by Ted Tuckman [ 15/Jun/21 ] |
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Closing this in favor of fixing clone() under |