[SERVER-44734] Implement large document optimization for agg MR Created: 19/Nov/19  Updated: 29/Oct/23  Resolved: 05/Dec/19

Status: Closed
Project: Core Server
Component/s: None
Affects Version/s: None
Fix Version/s: 4.3.3

Type: Task Priority: Major - P3
Reporter: Ted Tuckman Assignee: James Wahlin
Resolution: Fixed Votes: 0
Labels: qopt-team
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Depends
is depended on by SERVER-42511 Remove query knob internalQueryUseAgg... Closed
Backwards Compatibility: Fully Compatible
Sprint: Query 2019-12-02, Query 2019-12-16
Participants:
Linked BF Score: 21

 Description   

The old MR had an optimization here that would only reduce 16MB of documents at a time. We need to implement this in $internalJsReduce.

 

Caught by mr_bigobject.js



 Comments   
Comment by Githook User [ 04/Dec/19 ]

Author:

{'email': 'james.wahlin@mongodb.com', 'name': 'James Wahlin', 'username': 'jameswahlin'}

Message: SERVER-44734 Implement large document optimization for agg MR
Branch: master
https://github.com/mongodb/mongo/commit/0ac857c06f5a2f210f0ce102bf8c71763cf0b358

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