{ "description": "Direct connection to RSArbiter", "uri": "mongodb://a/?directConnection=true", "phases": [ { "responses": [ [ "a:27017", { "ok": 1, "helloOk": true, "isWritablePrimary": false, "arbiterOnly": true, "hosts": [ "a:27017", "b:27017" ], "setName": "rs", "minWireVersion": 0, "maxWireVersion": 6 } ] ], "outcome": { "servers": { "a:27017": { "type": "RSArbiter", "setName": "rs" } }, "topologyType": "Single", "logicalSessionTimeoutMinutes": null, "setName": null } } ] }