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  1. Documentation
  2. DOCS-13605

Investigate changes in SERVER-41455: Support running $out or $merge from a secondary with writes to the primary


      Downstream Change Summary

      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.)

            Unassigned Unassigned
            backlog-server-pm Backlog - Core Eng Program Management Team
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              4 years, 8 weeks, 2 days ago