(ve):Set up MongoDB on CentOS

This page was last modified on February 2, 2011, at 10:29.

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Overview

MongoDB (from "humongous") is an open source, scalable, high-performance, schema-free, document-oriented database written in the C++ programming language. The database is document-oriented so it manages collections of JSON-like documents. Many applications can, thus, model data in a more natural way, as data can be nested in complex hierarchies and still be query-able and index-able.

Development of MongoDB began in October 2007 by 10gen. The first public release was in February 2009.

Instructions

Add the 10gen repository: We're going to tell yum to use another repository for our MonogoDB. This is referenced from the MongoDB website. First, create a file called 10gen.repo in
```
pico /etc/yum.repos.d/10gen.repo
```
Add the following:
```
[10gen]
name=10gen Repository
baseurl=http://downloads.mongodb.org/distros/centos/5.4/os/x86_64/
gpgcheck=0
```
Reference: http://www.mongodb.org/display/DOCS/CentOS+and+Fedora+Packages
Update: Update yum, using the following command this may take awhile.
```
yum update
```
Search: See what versions of Mongo are available by typing, see Figure 1:
```
yum search mongo
```
Figure 1: Sample output.
Install (STABLE): We're going to install the stable server based on the 64bit architecture, see Figure 2. Run the following:
```
yum install mongo-stable-server.x86_64
```
Figure 2
If you're curious to know if your server is 64bit or 32bit, type
```
uname -a
```
By default, (ve) Servers are 64bit.
If you want more insight as to what was installed, type:
```
yum info mongo-stable-server.x86_64
```
Start Mongo: Mongo needs to be started in the shell, before it can be used. See Figure 3 and 4. There's a number of ways you can do this. One way is: In another terminal type:
```
mongod
```
Figure 3

Figure 4

Close the terminal.
For advanced procedures regarding stopping and starting MongoDB, please see the MongoDB documentation.
DONE!