OpenNebula 2.2.0 Final (Codename Cat's eye)

March, 29th 2011. The OpenNebula project announces the general availability of the final release of the OpenNebula 2.2.0 version. OpenNebula 2.2.0 is a stable version and it is targeted at production deployments. Clouds running any OpenNebula 2.0.x versions are recommended to upgrade to this release. OpenNebula 2.2.0 is backward compatible with the 2.0.x series in terms of the database schema, interfaces and API's.

Among the new features, OpenNebula 2.2.0 includes a new component, Sunstone, a web application to control your cloud with lots of eye candy. OpenNebula 2.2.0 also brings important new features in the fault tolerance and scalability areas. With this new release, the OpenNebula community continues to fulfill the promise of building a state-of-the-art open source toolkit that also addresses the scalability, flexibility and security requirements of large-scale production systems.

As usual OpenNebula releases are named after a Nebula. The Cat's Eye Nebula (NGC 6543, Caldwell 6) is a planetary nebula in the constellation of Draco.

What's New in OpenNebula 2.2.0 Final

OpenNebula 2.2.0. includes many improvements among which are:

  • Sunstone. A web application to manage and administer a cloud. This is the first public release of this new component, which levels the functionality of the command line interface tools. Next releases of OpenNebula will improve Sunstone to include more features, like user profiles or graphical representations of the cloud status.
  • Fault Tolerance (FT). OpenNebula FT has been improved in this release to automatically trigger recover actions when a physical host (or VM) fails.
  • Ganglia. Ganglia is a wide-spread monitoring system. Large deployments may benefit from the scalability of Ganglia and use it as the monitoring source for physical hosts and VMs.
  • Image support in OCCI. The OCCI cloud interface it is now integrated with the OpenNebula image repository and exposes most of its functionality.
  • Virtual Networks, have been improved to allow its dynamic modification without the need of re-create them.
  • Many bugs fixes has been solved during the OpenNebula 2.2.0 release cycle.

A complete list of issues and bug fixes for this release can be check at the development portal.

Getting OpenNebula 2.2.0

OpenNebula is released under the Apache 2 open source license. The complete source tree and binary packages for OpenNebula can be downloaded here. OpenNebula packages are also available from the official repositories of the main Linux distributions, although they may not be updated yet to OpenNebula 2.2.0.

Please report any bug or send feedback at the development portal or at the mailing list.

Documentation for OpenNebula 2.2.0

The documentation of OpenNebula 2.2.0 can be found here. The documents have been slightly re-structured to ease looking for information, so watch out!. We have also created a Community Wiki to include how-tos, installation instructions, configuration tips or any other technical information. Check the Community Wiki to get your account and contribute.

About OpenNebula

More information about the project can be found at the project web page. You may be also interested in checking the OpenNebula Ecosystem that includes many interesting projects contributed by the community to enhance or add new features to OpenNebula.


The OpenNebula project would like to thank the community for their effort and valuable contributions that made possible this release; the European Commission for founding part of the developments of this release through the StratusLab and BonFIRE research grants; and our private sponsor, C12G for supporting the community and software contributions.