[DRIVERS-868] Support running $out or $merge from a secondary with writes to the primary Created: 03/Jun/19  Updated: 27/May/22  Resolved: 03/May/21

Status: Closed
Project: Drivers
Component/s: None
Fix Version/s: None

Type: Task Priority: Major - P3
Reporter: Bernie Hackett Assignee: Unassigned
Resolution: Duplicate Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Depends
depends on SERVER-41455 Support running $out or $merge from a... Closed
is depended on by DOCS-13479 Investigate changes in SERVER-45974: ... Closed
is depended on by DOCS-13605 Investigate changes in SERVER-41455: ... Closed
Duplicate
duplicates DRIVERS-823 Support $merge and $out executing on ... Implementing
Driver Changes: Not Needed
Server Compat: 4.4

 Description   

It should be possible to perform reads from a secondary node and send the writes to the primary. If the read part of a pipeline is expensive but the write is not so expensive, this could help decrease load on the primary.


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