Install MongoDB

Install MongoDB

 

Packages

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

• mongodb-org
  This package is a metapackage that will automatically install the four component packages listed below.
  
• mongodb-org-server
  This package contains the mongod daemon and associated configuration and init scripts.
  
• mongodb-org-mongos
  This package contains the mongos daemon.
  
• mongodb-org-shell
  This package contains the mongo shell.
  
• mongodb-org-tools
  This package contains the following MongoDB tools: mongoimport bsondump, mongodump, mongoexport, mongofiles, mongooplog, mongoperf, mongorestore, mongostat, and mongotop.
  
  
  

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

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 -y 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 -y 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

Start MongoDB.

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

sudo service mongod start

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 for a line reading

[initandlisten] waiting for connections on port <port>

where <port> is the port configured in /etc/mongod.conf, 27017 by default.
You can optionally ensure that MongoDB will start following a system reboot by issuing the following command:

sudo chkconfig mongod on

Stop MongoDB.

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

sudo service mongod stop

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/mongodb/mongod.log file.

The MongoDB instance stores its data files in /var/lib/mongo and its log files in /var/log/mongodb by default, and runs using the mongod user account. You can specify alternate log and data file directories in /etc/mongodb.conf. See systemLog.path and storage.dbPath for additional informatio

 Check MongoDB Version and Test Setup

Use following command to check installed mongodb version

# mongo --version

MongoDB shell version: 2.6.0

Connect MongoDB using command line and execute some test commands for checking proper working.

# mongo
> db.test.save( { a: 1 } )
> db.test.find()

  { "_id" : ObjectId("52b0dc8285f8a8071cbb5daf"), "a" : 1 }

Ref : http://docs.mongodb.org/manual/tutorial/install-mongodb-on-red-hat-centos-or-fedora-linux/