How to Install MongoDB
The MongoDB software package includes an executable file called mongod. This daemon process handles database processes like accessing, retrieving, and updating the data. When you use the mongod executable, it requires a data directory that it can write to.
The installation process configures mongod as a systemd service, which means that you can manage it using standard systemctl commands. You can also add authentication and remote access support.
How to install
MongoDB is a popular NoSQL database system that is good for storing unstructured data. It is also widely used for web application development and real-time storage. Its main benefit is that it allows for the update of databases on the fly without requiring schema migrations. This makes it very easy to scale.
If you are using a Windows machine, you can install MongoDB by downloading the msi file from the official website. The msi package is a complete installation of the Community server version of MongoDB. After the installation, you can start it by typing mongod at the system prompt.
If you are on a Linux machine, you can install MongoDB by adding the repository to your apt sources. This will allow you to install mongodb-org, which provides a meta-package that automatically points to the latest version of MongoDB. You will need a gpg key for authentication. If your deployment uses LDAP, you must configure SELinux to allow access to the tcontext=system_u:system_r:ldap_port_t:s0 LDAP ports.
You can control MongoDB at runtime either directly from the mongod or mongos command line or using a configuration file. In both cases, the configuration file is preferred since it prevents the user from overwriting configuration settings. The MongoDB configuration file uses ASCII encoding and supports Boolean values, although it does not support UTF-8.
If set to true, enables database authentication for users connecting from remote hosts. If mongod is running on a Windows machine, it can use the system-provided Kerberos ticket to authenticate to the database. If not set, it will use the local host defaults for the AuthenticationSecurityMethod value.
If shardsvr is enabled, this parameter specifies one or more configuration servers for a sharded cluster. If more than one config server is specified, the first config server is read by all mongos instances. If not set, the default configdb server is the first server in the list. This setting only affects mongos processes.
MongoDB installers for Windows are available in 32-bit and 64-bit versions. The 32-bit installers are good for development and testing environments. However, for production environments, you should use the 64-bit installer. This will avoid the limitation of memory mapped files in the 32-bit version.
You can install MongoDB Community Edition on supported Linux systems using a variety of packaging tools. For Red Hat Enterprise and related Linux systems, these instructions will install the official MongoDB Community Edition rpm packages from the MongoDB distribution repository. If you are running Ubuntu, these instructions will install the mongodb-org package that is maintained by MongoDB Inc. This will avoid conflicts with the mongodb package provided by Ubuntu, which is not maintained by MongoDB Inc.
Starting with version 4.4.1, the msi installer includes MongoDB Database Tools. See Using the Database Tools for more information.
After the installation process is complete, you can start MongoDB as a Windows service. This will make it run automatically when your system restarts. The service will run under the user mongodb.
To install MongoDB on Linux, add its dedicated repository and use apt to install the application. If you want to use a different folder path, change the INSTALLLOCATION parameter in the command. Ensure that the mnt_data and logs directories are accessible by the mongodb process. To do so, you may need to configure ulimits or set a higher recursion limit.
Before installing MongoDB, be sure to back up your databases and log files. This process is not reversible and will remove all data from your system. If you want to upgrade an existing deployment, follow the Upgrade Procedures section instead. MongoDB is available in two editions: Community and Enterprise. The Community edition is free and is suitable for development and production use. The Enterprise edition is commercial and provides advanced features such as monitoring, real-time server stats, LDAP support, and document validation.