[SERVER-23162] Support parallelCollectionScan in mongos Created: 15/Mar/16 Updated: 06/Dec/22 Resolved: 24/Aug/18 |
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| Status: | Closed |
| Project: | Core Server |
| Component/s: | Querying, Sharding |
| Affects Version/s: | None |
| Fix Version/s: | None |
| Type: | Improvement | Priority: | Major - P3 |
| Reporter: | Mathias Stearn | Assignee: | Backlog - Query Team (Inactive) |
| Resolution: | Done | Votes: | 1 |
| Labels: | None | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Issue Links: |
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| Assigned Teams: |
Query
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| Description |
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Now that mongos has a better implementation of cursors, it should be possible to implement this for both sharded and unsharded collections. For sharded collections an initial implementation could just use a normal find() query to each shard if we don't want to add a ShardFilterStage in parallelCollectionScan. |
| Comments |
| Comment by Asya Kamsky [ 24/Aug/18 ] |