1topology_description: 2 type: Sharded 3 servers: 4 - &1 5 address: g:27017 6 avg_rtt_ms: 5 7 type: Mongos 8 - &2 9 address: h:27017 10 avg_rtt_ms: 35 11 type: Mongos 12operation: read 13read_preference: 14 mode: Primary 15suitable_servers: 16- *1 17- *2 18in_latency_window: 19- *1