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  1. Drivers
  2. DRIVERS-1955

CRUD spec for $out/$merge on secondaries should consider load balancers

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    • Type: Icon: Improvement Improvement
    • Resolution: Duplicate
    • Priority: Icon: Unknown Unknown
    • None
    • Component/s: CRUD
    • None
    • Needed

      The specification says:

      If a pre-5.0 mongos or a load balancer backing a pre-5.0 mongos is selected, the effective read preference is {“mode”: “primary” }``.

      The problem is that for a load balancer, drivers don’t do SDAM so they don’t have a wire version during server selection to compare against.

      It would be reasonable to assume load balancers are only backing 5.0+ servers, and specify that behavior in the CRUD spec.

            Assignee:
            Unassigned Unassigned
            Reporter:
            jeff.yemin@mongodb.com Jeffrey Yemin
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              Created:
              Updated:
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