Centos下mongoDB安装

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

Package Options¶

The 10gen repository contains four packages:

• mongo-10gen

  This package contains MongoDB tools from latest stable release. Install this package on all production MongoDB hosts and optionally on other systems from which you may need to administer MongoDB systems.

• mongo-10gen-server

  This package contains the mongod and mongos daemons from the latest stable release and associated configuration and init scripts.

• mongo18-10gen

  This package contains MongoDB tools from previous release. Install this package on all production MongoDB hosts and optionally on other systems from which you may need to administer MongoDB systems.

• mongo18-10gen-server

  This package contains the mongod and mongos daemons from previous stable release and associated configuration and init scripts.

The MongoDB tools included in the mongo-10gen packages are:

• mongo
• mongodump
• mongorestore
• mongoexport
• mongoimport
• mongostat
• mongotop
• bsondump

Installing MongoDB¶

Configure Package Management System (YUM)¶

Create a /etc/yum.repos.d/10gen.repo file to hold information about your repository. If you are running a 64-bit system (recommended,) place the following configuration in /etc/yum.repos.d/10gen.repo file:

[10gen]
name=10gen 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 isn’t recommended for production deployments, place the following configuration in /etc/yum.repos.d/10gen.repo file:

[10gen]
name=10gen Repository
baseurl=http://downloads-distro.mongodb.org/repo/redhat/os/i686
gpgcheck=0
enabled=1

Installing Packages¶

Issue the following command (as root or with sudo) to install the latest stable version of MongoDB and the associated tools:

yum install mongo-10gen mongo-10gen-server

When this command completes, you have successfully installed MongoDB! Continue for configuration and start-up suggestions.

Configure MongoDB¶

These packages configure MongoDB using the /etc/mongod.conf file in conjunction with the control script. You can find the init script at /etc/rc.d/init.d/mongod.

This MongoDB instance will store its data files in the /var/lib/mongo and its log files in /var/log/mongo, and run using the mongod user account.

Note

If you change the user that runs the MongoDB process, you will need to modify the access control rights to the /var/lib/mongo and /var/log/mongo directories.

Control MongoDB¶

Warning

With the introduction of systemd in Fedora 15, the control scripts included in the packages available in the 10gen 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.

Start MongoDB¶

Start the mongod process by issuing the following command (as root, or with sudo):

service mongod start

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

You may optionally, ensure that MongoDB will start following a system reboot, by issuing the following command (with root privileges:)

chkconfig mongod on

Stop MongoDB¶

Stop the mongod process by issuing the following command (as root, or with sudo):

service mongod stop

Restart MongoDB¶

You can restart the mongod process by issuing the following command (as root, or with sudo):

service mongod restart

Follow the state of this process by watching the output in the /var/log/mongo/mongod.log file to watch for errors or important messages from the server.

You can restart the mongod process by issuing the following command (as root, or with sudo):

Control mongos¶

As of the current release, there are no control scripts for mongos. mongos is only used in sharding deployments and typically do not run on the same systems where mongod runs. You can use the mongodb script referenced above to derive your own mongos control script.

SELinux Considerations¶

You must 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 Interfaces and Port Numbers for more information on MongoDB’s default ports.
• disable SELinux entirely. This requires a system reboot and may have larger implications for your deployment.

Using MongoDB¶

Among the tools included in the mongo-10gen package, is the mongo shell. You can connect to your MongoDB instance by issuing the following command at the system prompt:

mongo

This will connect to the database running on the localhost interface by default. At the mongo prompt, issue the following two commands to insert a record in the “test” collection of the (default) “test” database and then retrieve that document.

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

See also

“mongo” and “JavaScript Interface“