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MONGODB / MongoDB-v1.4.5 / t / data / SS / server_selection / ReplicaSetNoPrimary / read / Nearest_non_matching.yml 
---
topology_description:
  type: ReplicaSetNoPrimary
  servers:
  - address: b:27017
    avg_rtt_ms: 5
    type: RSSecondary
    tags:
      data_center: nyc
  - address: c:27017
    avg_rtt_ms: 100
    type: RSSecondary
    tags:
      data_center: nyc
operation: read
read_preference:
  mode: Nearest
  tag_sets:
  - data_center: sf
suitable_servers: []
in_latency_window: []