Investigate fetching metadata from the CSRS using hedged reads

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    • Type: Task
    • Resolution: Won't Do
    • Priority: Major - P3
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      In a CSRS, and particularly in a config shard, it is common to experience lagged replica set nodes.

      If the lagged node is the nearest to a request, a refresh can time out while waiting to satisfy the afterClusterTime.

      The goal of this ticket is to make a proposal to exclusively use hedged reads when fetching metadata from CSRS for installing filtering or routing information, in order to be resilient to nearest lagged secondaries.

              Assignee:
              Unassigned
              Reporter:
              Pol Pinol
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