deb-ceilometer/install-guide/source/database/environment-nosql-database-ubuntu.rst

NoSQL database for Ubuntu

The Telemetry service uses a NoSQL database to store information. The database typically runs on the controller node. The procedures in this guide use MongoDB.

Install and configure components

1. Install the MongoDB packages:

   # apt-get install mongodb-server mongodb-clients python-pymongo

2. Edit the /etc/mongodb.conf file and complete the following actions:

   • Configure the bind_ip key to use the management interface IP address of the controller node.

     bind_ip = 10.0.0.11

   • By default, MongoDB creates several 1 GB journal files in the /var/lib/mongodb/journal directory. If you want to reduce the size of each journal file to 128 MB and limit total journal space consumption to 512 MB, assert the smallfiles key:

     smallfiles = true

     You can also disable journaling. For more information, see the MongoDB manual.

Finalize installation

• If you change the journaling configuration, stop the MongoDB service, remove the initial journal files, and start the service:

  # service mongodb stop
  # rm /var/lib/mongodb/journal/prealloc.*
  # service mongodb start