If not provided, use database name from connection string. My MongoDB connection is using no username, password, or custom port. Connection pools. I am able to interact with one instance of MongoDB.

Adjust the pool size using your connection options: ... connection pooling, replicas, etc. Each connection, whether created with mongoose.connect or mongoose.createConnection are all backed by an internal configurable connection pool defaulting to a size of 5. This object defines the Sql Server information.

There are two ways of establishing a Mongoose connection, using the default connection or a named connection.
This module allows you to maintain an arbitrary number of changing Mongoose connections. Example for Connection Pooling in an Express App. The most common connection pooling problem we see results from applications that create a MongoClient object way too often, sometimes on each database request.

How I … The Connection() function accepts the config object. [options.bufferCommands=true] «Boolean» Mongoose specific option. There is often quite a lot of confusion about how best to set up a database connection with Mongoose. I am on node environment and using mongoose package for interaction with MongoDB. 3. mongoose.connect(...) In test.js.

Each time your Node JS code makes a query, if possible, it'll use one of the already-open 10 connections to make this request -- this way you can avoid the overhead of opening a new database connection for each query.

Example: {keepalive_interval, 30}. If you need to set these options or any other option during connection, I suggest reviewing the Mongoose Documentation on connecting.

I would like to know how to check the status of that connection from within my test. Here is the proper syntax: {server, {Type, Host, Port, DBName, Username, Password, SSL}}.

Set to false to disable buffering; on all models associated with this connection. The rest of this tutorial shows how to define and access the Mongoose schema and models for the LocalLibrary website example..

Running multiple queries at same time. Next, I open a connection to a database that I've called mongoose_basics using the connect function.
Mongoose-Connection-Pool.

This app creates a Mongoose connection. It was designed for applications in which an unknown number of MongoDB databases contain similar collections. Before you jump in and start coding the models, it's worth taking a few minutes to think about what data we need to store and the relationships between the different objects. The solution is to create 10 connection and run each query in a different connection. The Connection instance of name dbConn is declared using Connection() function of the sql object. The connect() function call returns a promise object.

These options allow applications to configure the connection pool when connecting to the MongoDB deployment.

Default: undefined; MySQL and PostgreSQL SSL connection setup. Some drivers do not support connection pools. This modified text is an extract of the original Stack Overflow Documentation created by following contributors and released under CC BY-SA 3.0 2. console.log(mongoose.connection.readyState); How to access the app.js connection? It was designed for applications in which an unknown number of MongoDB databases contain similar collections. [options.dbName] «String» The name of the database we want to use. Maintaining a connection pool is essentially maintaining an array of db connection objects, and picking unused ones for every query.

Contribute to RaghavPrabhu/mongoose-connection-pool development by creating an account on GitHub. Connection Pool Options¶ Most drivers implement some kind of connection pool handling. All queries in MySQL connection are done one after another. I want to make connection pooling on MongoDB. With a successful connection, let's move on to define a Mongoose Schema.


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