Details
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Task
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Resolution: Duplicate
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Major - P3
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None
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Description
Description
The downstream impact of this change was likely already considered as part of PM-1770, but I'm marking this as having downstream impact for completeness. Drivers need to do work to expose this feature to applications, but I believe that this work has been deferred until the 4.6 compatible driver releases. The feature should be documented, but I believe we are waiting to document it until driver support lands.
Description of Linked Ticket
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.
Scope of changes
Impact to Other Docs
MVP (Work and Date)
Resources (Scope or Design Docs, Invision, etc.)
Attachments
Issue Links
- depends on
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DRIVERS-868 Support running $out or $merge from a secondary with writes to the primary
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- Closed
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- documents
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SERVER-41455 Support running $out or $merge from a secondary with writes to the primary
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- Closed
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- duplicates
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DOCS-13479 Investigate changes in SERVER-45974: Enable $merge/$out on secondaries in non-test configurations
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- Closed
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