# Driver doesn't validate maxStalenessSeconds for mongos
---
heartbeatFrequencyMS: 10000
topology_description:
type: Sharded
servers:
-
address: a:27017
type: Mongos
avg_rtt_ms: 5
lastUpdateTime: 0
maxWireVersion: 5
lastWrite:
-
address: b:27017
type: Mongos
avg_rtt_ms: 50 # Too far.
lastUpdateTime: 0
maxWireVersion: 5
lastWrite:
read_preference:
mode: Nearest
maxStalenessSeconds: 1 # OK for sharding.
suitable_servers:
- *1
- *2
in_latency_window:
- *1