问当远程数据库中的insertOne超时时缓冲超时

EN

{"t":{"$date":"2020-12-21T15:57:30.022+00:00"},"s":"I",  "c":"ACCESS",   "id":20250,   "ctx":"conn102","msg":"Successful authentication","attr":{"mechanism":"SCRAM-SHA-256","principalName":"test_user","authenticationDatabase":"admin","client":"x.x.x.x:56604"}}

[nodemon] starting `node ./dist/server.js`
Express server listening on port 3000
MongoDB connected
createUser
----------
err MongooseError: Operation `users.insertOne()` buffering timed out after 10000ms
    at Timeout.setTimeout (C:\Users\_jmvelasco\Documents\node-mongodb-setup-test\node_modules\mongoose\lib\drivers\node-mongodb-native\collection.js:184:20)
    at ontimeout (timers.js:436:11)
    at tryOnTimeout (timers.js:300:5)
    at listOnTimeout (timers.js:263:5)
    at Timer.processTimers (timers.js:223:10)
user data undefined
----------

{"t":{"$date":"2020-12-21T15:57:29.083+00:00"},"s":"W",  "c":"NETWORK",  "id":4615610, "ctx":"conn90","msg":"Failed to check socket connectivity","attr":{"error":"The operation completed successfully."}}
{"t":{"$date":"2020-12-21T15:57:29.083+00:00"},"s":"I",  "c":"-",        "id":20883,   "ctx":"conn90","msg":"Interrupted operation as its client disconnected","attr":{"opId":92120}}
{"t":{"$date":"2020-12-21T15:57:29.084+00:00"},"s":"I",  "c":"NETWORK",  "id":22989,   "ctx":"conn90","msg":"Error sending response to client. Ending connection from remote","attr":{"error":{"code":6,"codeName":"HostUnreachable","errmsg":"Connection reset by peer"},"remote":"x.x.x.x:56530","connectionId":90}}
{"t":{"$date":"2020-12-21T15:57:29.084+00:00"},"s":"I",  "c":"NETWORK",  "id":22944,   "ctx":"conn90","msg":"Connection ended","attr":{"remote":"x.x.x.x:56530","connectionId":90,"connectionCount":17}}

private mongoSetup(): void {
    var options = {
        useNewUrlParser: true,
        useUnifiedTopology: true,
        keepAlive: true,
    };
    mongoose.connect(this.mongoUrl, options, function (err, db) {
        if (err) {
            console.log('MongoDB connect error:', err);
        } else {
            console.log('MongoDB connected');
        }
    });
}


* mongoUrl = 'mongodb://test_user:xxxx@x.x.x.x:27017/' +
        env.getDBName() +
        '?authSource=admin'