[SERVER-7425] distinct should run in parallel in a sharded cluster Created: 19/Oct/12 Updated: 06/Dec/22 |
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| Status: | Backlog |
| Project: | Core Server |
| Component/s: | Querying |
| Affects Version/s: | 2.2.0 |
| Fix Version/s: | None |
| Type: | Improvement | Priority: | Minor - P4 |
| Reporter: | Richard Kreuter (Inactive) | Assignee: | Backlog - Query Execution |
| Resolution: | Unresolved | 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 Execution
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| Participants: | |||||
| Description |
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It looks like the code for distinct in the mongos runs the command against the shards in series, rather than in parallel. It ought to be a win to run that one with a parallel cursor. |