[SERVER-32347] Improve efficiency of cross-collection joins though co-locating chunks by shard key across collections Created: 14/Dec/17 Updated: 05/Oct/23 |
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| Status: | Investigating |
| Project: | Core Server |
| Component/s: | Sharding |
| Affects Version/s: | None |
| Fix Version/s: | None |
| Type: | Improvement | Priority: | Major - P3 |
| Reporter: | Kaloian Manassiev | Assignee: | Matt Panton |
| 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: |
Sharding EMEA
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| Participants: | |||||
| Description |
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This ticket is meaningful in the context of sharded $lookup and distributed transactions, when these features are eventually available. The idea is to minimize the number of distributed rounds for 2 phase commit and/or minimizing the amount of data which needs to travel on the network in order to answer a $lookup. |