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OpenStack Havana: So many changes, so little time

on October 9, 2013

The Havana release of OpenStack is just over one week away, and as the community prepares to send it out into the world, users, developers, administrators, operators, and everyone else in the ecosystem are trying to get their heads around what’s coming.

It’s no surprise. The upcoming OpenStack Havana release will see the addition of a staggering 393 implemented blueprints, each of which represents a new feature or change in the way OpenStack works.  Even the release notes, which distill the list down to just the essentials, lists 34 new features just for Nova!

In fact, at the time of this writing, only a few projects — OpenStack Identity (Keystone), OpenStack Compute (Nova), OpenStack Orchestration (Heat), and OpenStack Documentation — had completed their release notes, but there’s already a lot to be excited about.

A sampling of OpenStack Havana additions

Some of the new features listed include:

  • Cells capabilities have been greatly expanded.  Extensions to the Nova API include the ability to determine the available RAM in a cell, and the cell scheduler has brand new features to bring it conceptually closer to host scheduling.  Live migration is also supported within cells.

  • The default quota can now be edited, and administrators can set quotas on a per-user basis, rather than just a per-tenant basis.

  • A Cinder volume attached to an instance can be transparently swapped out, with no loss or corruption of data.

  • The backend for a Cinder volume can be swapped out, enabling you to change the physical drive type hosting a volume as your needs change.

  • Keystone can store credentials such as tokens in a separate backend.

  • Deployers can create a custom Keystone provider interface

That’s just a tiny fraction of the new capabilities that OpenStack’s Havana brings, and it doesn’t even mention the addition of two completely new projects that were not part of the integrated release for Grizzly, OpenStack Orchestration (Heat) which provides the ability to automatically scale a cluster up or down based on templates, and OpenStack Metering (Ceilometer), which provides a way to measure the usage and activity of your cluster, for billing or monitoring.

It’s a lot to take in and in the weeks to come we’ll be looking at some of the new features in advance of a webinar I will be giving with Oleg Gelbukh, “What’s New in OpenStack Havana: A Technical Overview”, on October 29 at 1:00pm EDT.  At that webinar, we’ll look at some of the most important changes, and what they mean to you and your OpenStack cloud.


5 Responses

  1. Raghavendra Lad

    The Openstack Havana release with OpenStack Ceilometer (Billing) and OpenStack Orchestration (Heat) which provides the ability to automatically scale a cluster up or down based on templates hope many additional features also would be supported and H is not just a “Hype”. H-3 and finally ICEHOUSE preparations are on.. only upon usage and stability it can be guaged.. happy stacking..!!! it is informative article hope to see more details in teh next article.

    October 11, 2013 03:03
    • Nick Chase

      Thanks, Raghavendra, you’re so right. “H” is definitely not for “Hype”! Glad you enjoyed it; we’ll cover some individual topics in a few posts between now and then — I’ve just posted the next one, about improved support — and of course we’ll be diving relatively deep in the webinar itself. And thanks for the comment, we love to hear what’s important to you!

      October 18, 2013 09:06

Continuing the Discussion

  1. OpenStack Havana: So many changes, so little time – Mirantis for OpenStack. | OpenStackうぉっち

    [...] OpenStack Havana: So many changes, so little time – Mirantis for OpenStack.. 共有:TwitterFacebookGoogleいいね:いいね 読み込み中… カテゴリー: クラウド全般   タグ: Havana   作成者: ntamaoki   この投稿のパーマリンク [...]

    October 9, 201319:38
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    [...] OpenStack Havana版本进展情况 [...]

    October 15, 201302:15
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    [...] OpenStack Havana版本进展情况 [...]

    October 18, 201300:22

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