[SERVER-10087] provide index hinting within MapReduce Created: 03/Jul/13  Updated: 06/Dec/22  Resolved: 04/Feb/22

Status: Closed
Project: Core Server
Component/s: MapReduce
Affects Version/s: 2.4.4
Fix Version/s: None

Type: Improvement Priority: Major - P3
Reporter: Marc Schwering Assignee: Backlog - Query Optimization
Resolution: Done Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Duplicate
is duplicated by SERVER-38974 How to force a mongodb mapreduce quer... Closed
Related
Assigned Teams:
Query Optimization
Participants:

 Description   

Index hinting can speed up specific queries, especially for queries which will return a lot of documents (120M+) out of a large dataset (3x avail RAM+).

Index hinting is currently requested for the aggregation framework (SERVER-7944) but would speed up MapReduce jobs as well.



 Comments   
Comment by Esha Bhargava [ 04/Feb/22 ]

Closing these tickets as part of the deprecation of mapReduce.

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