[SERVER-5091] parallelize aggregating operations ($group and $sort) Created: 25/Feb/12  Updated: 06/Dec/22

Status: Backlog
Project: Core Server
Component/s: Aggregation Framework
Affects Version/s: None
Fix Version/s: None

Type: New Feature Priority: Major - P3
Reporter: Daniel Pasette (Inactive) Assignee: Backlog - Query Execution
Resolution: Unresolved Votes: 20
Labels: optimization, performance
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Depends
depends on SERVER-5088 Intra-query parallelism Backlog
Assigned Teams:
Query Execution
Participants:

 Description   

If we could scan multiple underlying extents in parallel, we could parallelize some of the aggregation operations in aggregation pipelines. The code that would combine the results of smaller parallel tasks that results could be used in both mongos and within mongod when parallel cursor scans are available.


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