- What is mongo and mongo Express?
- What does mongo Express do?
- How does MongoDB integrate with Express?
- What is the difference between MongoDB and mongoose?
- What database does express use?
- What are the drawbacks in MongoDB?
- Does MongoDB MapReduce lock the database?
- How does MongoDB store data?
- What is config servers in MongoDB?
How do I use mongo Express Docker?
Go to the “mongodb” folder and run the docker-compose up command to start the MongoDB container. The -d operator runs the detached container as a background process. The up command will pull the mongo image from the docker registry and create the container using the given parameters in the docker-compose. yml file.
What is mongo and mongo Express?
mongo-express is a web-based MongoDB admin interface written in Node. js, Express. js, and Bootstrap3. github.com/mongo-express/mongo-express.
What does mongo Express do?
Mongo Express is a lightweight web-based administrative interface deployed to manage MongoDB databases interactively. It is authored using Node. js, Express and Bootstrap packages.
How does MongoDB integrate with Express?
- Install Node. js.
- Install the MongoDB Node. js Driver.
- Create a free MongoDB Atlas cluster and load the sample data. Next, you’ll need a MongoDB database.
- Get your cluster’s connection info.
- Import MongoClient.
- Create our main function.
- List the databases in our cluster.
- Save Your File.
What is the difference between MongoDB and mongoose?
js. In terms of Node. js, mongodb is the native driver for interacting with a mongodb instance and mongoose is an Object modeling tool for MongoDB. Mongoose is built on top of the MongoDB driver to provide programmers with a way to model their data.
What database does express use?
Express apps can use any database supported by Node (Express itself doesn’t define any specific additional behavior/requirements for database management). There are many popular options, including PostgreSQL, MySQL, Redis, SQLite, and MongoDB.
What are the drawbacks in MongoDB?
Off the top of my head, the main disadvantages of MongoDb are the following: Data consumption is generally high due to de-normalization. Joins on data are not supported. There is no default transaction support; you need to handle this yourself. Map/Reduce is somewhat slow; other offerings are faster.
Does MongoDB MapReduce lock the database?
By default nonAtomic is false, and the map-reduce operation locks the database during post-processing. If nonAtomic is true, the post-processing step prevents MongoDB from locking the database: during this time, other clients will be able to read intermediate states of the output collection.
How does MongoDB store data?
MongoDB stores the data on the disk as BSON in your data path directory, which is usually /data/db. There should be two files per collection there, collection.0, which stores the data (and that integer is then incremented as needs be) and collection.ns which stores the namespacing metadata for the collection.
What is config servers in MongoDB?
Config Server is a Mongo instance which stores metadata information and configuration details of cluster. MongoDB requires the config server to be deployed as a replica set. MongoDB cluster consists of a number of replica sets.