How do you check is MongoDB connected or not?

How do you check is MongoDB connected or not?

Testing the network connection to the MongoDB Rest Service server

1. Start a terminal in the server that runs the federation server.
2. Issue the following command: telnet < mongodb_server_name > 28017. If the connection is successful, you will receive the following similar output from the command. Trying 9.30.

How do I close all connections in MongoDB?

open(function (err, db) { db. close(); }); // Open another connection db. open(function (err, db) { db. close(); });

How do I monitor queries in MongoDB?

MongoDB Performance Monitoring Tools

1. mongostat Command. mongostat is used to get a quick overview of the status of your MongoDB server instance.
2. mongotop Command. mongotop tracks the amount of time a MongoDB instance spends reading and writing data per collection.
3. rs. status() Command.
4. db.
5. dbStats Command.
6. collStats Command.

Do we need to close MongoDB connection?

This means, ideally, you should have one Mongo Client instance per JVM. So, the application’s client uses a connection from the pool and returns it back to the connection pool after its usage. There is no need for closing the connection explicitly.

What to do if you have trouble connecting to a MongoDB database?

If you have created a user and are having trouble authenticating, try the following: Check that you are using the correct username and password for your database user, and that you are connecting to the correct database deployment. Check that you are specifying the correct authSource database in your connection string.

Why is my Atlas server not connecting to MongoDB?

Atlas sets limits for concurrent incoming connections to a database deployment. For clusters, this is based on the cluster tier. If you try to connect when you are at this limit, MongoDB displays an error stating connection refused because too many open connections.

Do you need to authenticate as a user in MongoDB?

If you have enabled access control for your deployment, you must authenticate as a user with the required privileges specified in each section. A user administrator with the userAdminAnyDatabase role, or userAdmin role in the specific databases, provides the required privileges to perform the operations listed in this tutorial.

What are the privileges to connect to mongod?

Connect to mongod or mongos with the privileges specified in the Prerequisites section. The following procedure uses the myUserAdmin created in Enable Access Control. The myUserAdmin has privileges to create roles in the admin as well as other databases. mongostatRole has privileges that act on the cluster resource.