This article focuses on document databases and how to use a server called MongoDB. But before we jump into the technical details, let’s look at the use cases of document databases. You can check out our separate guide tograph databasesfor more information on them. ...
Step 3:In this step, we need to check the size of the oplog – The Oplog is an assortment in MongoDB that stores the historical backdrop of composes which were done to the MongoDB information base. MongoDB then, at that point utilizes this Oplog to reproduce the keeps in touch with ...
How to monitor self-managed MongoDB instances:Commands such asrs.status()for replica sets andsh.status()for sharded clusters provide a high level status of the cluster. Use MongoDB’s built-infree monitoringfeature to get information on Operation Execution Times, Memory Usage, CPU Usage, and ...
application is small enough now that these differences won’t be very overt, but it’s something to keep in mind when working with more complex storage needs. Note: For a deeper look at MongoDB from a .NET developer’s perspective, check out this column’s 201 three-part series on ...
1. Start the MongoDB Shell in the terminal: mongosh The prompt changes to the MongoDB shell in test mode (test>). Note:If you can't access the MongoDB Shell, check whether the MongoDB service is active withsudo systemctl status mongodb. The output should confirm that the service isac...
The MongoDB shell allows you to access a database as long as you already have access to the server on which MongoDB is running. However, a command line interface isn’t always ideal for working with a database, as it may not be clear how one can find or analyze their data. Some ma...
Note:On a fresh connection, the MongoDB shell will connect to thetestdatabase by default. You can safely use this database to experiment with MongoDB and the MongoDB shell. Alternatively, you could switch to another database to run all of the example commands given in this tutorial. To ...
Check if a Collection Exists in MongoDB Using NodeJS To find if a collection exists, we first need to connect with the MongoDB server, and then we need to query like this: dbs.collection("Your_collection_name").find().toArray(function(err, res) { if ( res.length > 0 ) { console...
How to check email address already exist in MongoDB database ? How to check for duplicate? How to check for same value in collection of objects How to check if a window.locaton.href is successful loaded? How to check if form authentication cookie has expired in your custom authorize How ...
7. Check the Docker volumes: docker volume ls 8. Use the Mongo client application to log in to one of the config server replicas: mongosh mongodb://[ip_address]:[port] As a result, the MongoDB shell command prompt appears: 9. Initiate the replicas in MongoDB by using thers.initiate...