OpenStack Summit Barcelona with a Ceph flavour


By Yelena Jetpyspayeva | December 06, 2016 | OpenStack, Ceph, OpenStack Summit



openstack_banner.jpgA few months have passed since the must-attend cloud computing event — OpenStack Summit Barcelona — rocked the Spanish autumn and brought together a truly international crowd ready to enjoy the grueling schedule and benefit from all activities the organizers had lined up. We wanted to share our take-aways from the event.

For several days, we woke early to rush to the keynote sessions, attend breakouts, wander the huge expo hall, discover new solutions, and meeting good old industry peers, all the while learning from the OpenStack Academy and enjoying the Design / Ops Summit.

Filled with enthusiasm and the positivity you feel at a great community event, and armed with the latest news and updates on OpenStack developments, we headed home, eager to find the time to review the 361 videos available in the OpenStack Summit playlist on YouTube, and catch up on the sessions we had missed.

The Internet is packed with posts and recaps (here’s a summary of summaries), and we are still flipping through our photo album to recall the nice memories of our time in Barcelona.

We’ve asked one of the Bright attendees for their feedback and overall feel of the summit. Here’s what Piotr Wachowicz, Bright Computing's Cloud Team Lead, had to say.

“In the back rooms there has been a lot of talk about the failure of the big tent and BS-as-a-Service. There’s also been talk about some parts of OpenStack community trying to do too much in the “hip” areas of OpenStack without putting enough needed focus on its core components, which are by now stable (and, to some developers, boring).

559px-Gartner_Hype_Cycle.svg.pngThose discussions are healthy, and needed. They are a confirmation of OpenStack finally cresting the so called “peak of inflated expectations”, going through the “trough of disillusionment” and heading full speed towards the “plateau of productivity”. This is definitely good news for anyone already on board the OpenStack hype train and running OpenStack in production”.

Image source — Wikipedia.


Worth reading

“Users are aligning around OpenStack as its APIs have become the standard for enterprise Infrastructure-as-a-Service”, — says OpenStack User Survey, published just in time for the event.

It’s the seventh survey of the OpenStack’s community and users since April 2013, with a goal of better understanding attitudes, organizational profiles, use cases, and technology choices across the community’s various deployment stages and sizes.

The survey report analyzes respondents who completed or updated the survey during a three-week period in February 2016 and represents a snapshot of 1,603 community members and 405 user deployments provided voluntarily.

Insights are intended to provide feedback to the broader community and to arm technical leaders and contributors with better data to make decisions regarding the roadmap and feature enhancements, which is very interesting to follow. We wrote a short user survey recap, which you can find here.

Worth watching

Save time on the 361 videos available, by starting with - in our opinion - the most interesting talks on the playlist.

Here is our TOP 5 (and a bonus — sixth):

  1. Ceph, Now and Later - Our Plan for Open Unified Cloud Storage
  2. RabbitMQ at scale, lessons learned
  3. Magnum is Not the OpenStack Containers Service? How about Zun?
  4. Heat and Its Alternatives - Application Deployment in OpenStack
  5. Dockerizing the Hard Services - Neutron & Nova
  6. OVN - Moving into Production

Pragmatic guide to Ceph OSD hardware — talk by Piotr Wachowicz

1015767.pngThis year, the Bright team arrived at the OpenStack Summit in Barcelona not just as participants, but as an official conference speaker.

Piotr Wachowicz, Cloud Integration Lead at Bright Computing, is passionate about cloud computing, networking, and all things software-defined. He’s been working with OpenStack for several years, and his daily focus is to oversee the deployment process, and management/monitoring of Bright OpenStack.

At OpenStack Summit 2016 in Barcelona, Piotr talked about selecting hardware for Ceph OSD in a pragmatic manner. And here is why.

“As you might know, designing well-performing Ceph clusters is hard. If you throw OpenStack into the mix, it gets even harder. — says Piotr — There are many different ways in which a Ceph cluster can be (mis)configured. Same goes for selecting the appropriate hardware for your Ceph cluster. In my talk I decided to give a solid start into the world hardware for Ceph (in the context of OpenStack) for those who is interested but have no idea where to start”.

In the 45 minutes it takes to watch the video, you will learn all the lessons learned the hard way when operating two Ceph clusters over the past several years. Also included are all necessary recommendations on picking the right hardware for Ceph, as well as some tips on optimizing the deployed Ceph cluster for OpenStack.

Piotr explains what to consider when creating your very own Ceph cluster, and what the common problems are with Ceph to be aware of. He talks about fat nodes vs thin nodes, what’s the best SSD for journal (spoiler alert: one does not exist) and, last but not least, what the pragmatic sweet spot is between storage density, price, and performance.

The session offers a good blend of high level information and various useful technical details which we’ve learned the hard way, so that you don’t have to.

The session description is here along with slides.

It's worth mentioning that while Ceph is a hot topic, there is a lack of competent discussion around it. That's likely to be one of the reasons why our presentation topic was selected not just for OpenStack Summit Barcelona, but also for OpenStack Day UK earlier in Bristol (tweet) and again for Montreal at OpenStack Day Canada this November.