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Install MongoDB on Red Hat Enterprise, CentOS, Fedora, or Amazon Linux

Overview

Use this tutorial to install MongoDB on Red Hat Enterprise Linux, CentOS Linux, Fedora Linux, or a related system. The tutorial uses .rpm packages to install. While some of these distributions include their own MongoDB packages, the official MongoDB packages are generally more up to date.

Packages

MongoDB provides packages of the officially supported MongoDB builds in it’s own repository. This repository provides the MongoDB distribution in the following packages:

Control Scripts

The mongodb-org package includes various control scripts, including the init script /etc/rc.d/init.d/mongod.

The package configures MongoDB using the /etc/mongod.conf file in conjunction with the control scripts. See Configuration File Options for documentation of the configuration file.

As of version 2.6.4, there are no control scripts for mongos. The mongos process is used only in sharding. You can use the mongod init script to derive your own mongos control script.

Warning

With the introduction of systemd in Fedora 15, the control scripts included in the packages available in the MongoDB downloads repository are not compatible with Fedora systems. A correction is forthcoming, see SERVER-7285 for more information, and in the mean time use your own control scripts or install using the procedure outlined in Install MongoDB on Linux Systems.

Considerations

For production deployments, always run MongoDB on 64-bit systems.

The default /etc/mongodb.conf configuration file supplied by the 2.6 series .deb package has bind_ip` set to 127.0.0.1 by default. Modify this setting as needed for your environment before initializing a replica set.

Install MongoDB

1

Configure the package management system (YUM).

Create a /etc/yum.repos.d/mongodb.repo file to hold the following configuration information for the MongoDB repository:

If you are running a 64-bit system, use the following configuration:

[mongodb]
name=MongoDB Repository
baseurl=http://downloads-distro.mongodb.org/repo/redhat/os/x86_64/
gpgcheck=0
enabled=1

If you are running a 32-bit system, which is not recommended for production deployments, use the following configuration:

[mongodb]
name=MongoDB Repository
baseurl=http://downloads-distro.mongodb.org/repo/redhat/os/i686/
gpgcheck=0
enabled=1
2

Install the MongoDB packages and associated tools.

When you install the packages, you choose whether to install the current release or a previous one. This step provides the commands for both.

To install the latest stable version of MongoDB, issue the following command:

sudo yum install mongodb-org

To install a specific release of MongoDB, specify each component package individually and append the version number to the package name, as in the following example that installs the 2.6.1` release of MongoDB:

sudo yum install mongodb-org-2.6.1 mongodb-org-server-2.6.1 mongodb-org-shell-2.6.1 mongodb-org-mongos-2.6.1 mongodb-org-tools-2.6.1

You can specify any available version of MongoDB. However yum will upgrade the packages when a newer version becomes available. To prevent unintended upgrades, pin the package. To pin a package, add the following exclude directive to your /etc/yum.conf file:

exclude=mongodb-org,mongodb-org-server,mongodb-org-shell,mongodb-org-mongos,mongodb-org-tools

Previous versions of MongoDB packages use different naming conventions. See the 2.4 version of documentation for more information.

Run MongoDB

Important

You must configure SELinux to allow MongoDB to start on Fedora systems. Administrators have two options:

  • enable access to the relevant ports (e.g. 27017) for SELinux. See Configuration Options for more information on MongoDB’s default ports.
  • disable SELinux entirely. This requires a system reboot and may have larger implications for your deployment.

The MongoDB instance stores its data files in /var/lib/mongo and its log files in /var/log/mongo, and runs using the mongod user account. If you change the user that runs the MongoDB process, you must modify the access control rights to the /var/lib/mongodb and /var/log/mongodb directories.

1

Start MongoDB.

You can start the mongod process by issuing the following command:

sudo service mongod start
2

Verify that MongoDB has started successfully

You can verify that the mongod process has started successfully by checking the contents of the log file at /var/log/mongodb/mongod.log.

You can optionally ensure that MongoDB will start following a system reboot by issuing the following command:

sudo chkconfig mongod on
3

Stop MongoDB.

As needed, you can stop the mongod process by issuing the following command:

sudo service mongod stop
4

Restart MongoDB.

You can restart the mongod process by issuing the following command:

sudo service mongod restart

You can follow the state of the process for errors or important messages by watching the output in the /var/log/mongo/mongod.log file.

5

Begin using MongoDB.

To begin using MongoDB, see Getting Started with MongoDB. Also consider the Production Notes document before deploying MongoDB in a production environment.