{ "description": "Host list differs from seeds", "uri": "mongodb://a/?replicaSet=rs", "phases": [ { "responses": [ [ "a:27017", { "ok": 1, "helloOk": true, "isWritablePrimary": true, "setName": "rs", "hosts": [ "b:27017" ], "minWireVersion": 0, "maxWireVersion": 6 } ] ], "outcome": { "servers": { "b:27017": { "type": "Unknown", "setName": null } }, "topologyType": "ReplicaSetNoPrimary", "logicalSessionTimeoutMinutes": null, "setName": "rs" } } ] }