---
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: Primary
tags:
- {}
candidate_servers: []
eligible_servers: []
suitable_servers: []
in_latency_window: []