Performance does matter When speaking about cloud infrastructures, many think about the amount of servers, storage or number of virtual machines to be used. More than the quantity of hardware you select, the efficiency of your global solution is the key to get a powerful platform. This first article will be about defining why you should understand, check and diagnose… Read more →
eDeploy At eNovance, eDeploy is our in-house solution for maintaining and deploying production systems. It comes with some interesting features like the ability to do a hardware inventory just before deploying the system. This way we can detect an unexpected configuration or associate a specific configuration to a given role, for example, “storage” role for a 4TiB machine. Fred Lepied,… Read more →
Asynchronous programming is hard. In the past, the Nova project used Tornado, then Twisted and it is now using eventlet which also became the defacto standard in OpenStack. Eventlet is not perfect, we will explain why we consider that eventlet has major flaws. We will then introduce the asyncio module of Python 3.4, how we plan to use it in… Read more →
Python 3 has been around for about 5 years, and we have excellent reasons to make sure OpenStack runs well on it. Unfortunately, this is not the case. In this article, we’ll see what works, what doesn’t, and what you can do to help. Note that we are targetting the latest released version, Python 3.3. Python Clients OpenStack provides a… Read more →
For reference, this is an extension of my initial post to the foundation mailing list discussion initiated by Thierry Carrez. I thought that I could be a little clearer here in what I really think about the subject of Core and interoperability in OpenStack. Having been part of the defcore committee until the end of January, I must say that… Read more →
Introduction eDeploy is a new generation tool to manage baremetal deployments, virtual image creations and upgrades of Linux based systems in general. Upgrades have been the main focus with the possibility to rollback upgrades if needed. For those in a hurry wanting to see the source code, eDeploy is released under the Apache release at https://github.com/enovance/edeploy. In this article, we… Read more →
A few days ago we published a blog post called OpenStack Swift as backend for Git – part 1 where we explained what could be the advantages of using Swift as backend for Git and gave you some details about what happens in Git (server side) when a client pushes or fetches objects. In this second blog post, we will… Read more →
As we are working on our Software Factory product, one of the challenges we were facing was whether we could provide a scalable backend to Git. Traditionally, Git is installed using a file system as a backend, which means that out growing your file system means moderately complex operations to make it larger, which are manual and require some downtime…. Read more →
Python 3 is usually seen as the new Python version which breaks compatibility and raises new Unicode issues. Python 3 is much more than that. It’s a new clean language which has a more consistent syntax. It has many new features, not less than 15 new modules. Python 3 is already well supported by major Linux distributions, whereas Python 2.7… Read more →
During our investigation for the next update of the CloudWatt platform, we identified a recent patch that has been merged in Swift that introduces discoverable capabilities, allowing clients to retrieve configuration info programmatically. The info published is akin to which middlewares are installed or what version of Swift is running. In this article I will describe how it works, how… Read more →
I have just come back from the OpenStack summit in Hong Kong. As always it was a blast talking to lot of people and listening to presentations or designing the future of the software we all love. While chatting with different people there was a recurrent question coming up to me: people wanted to know whether “Ceph is better than… Read more →
The summit was exciting and full of good things and announcements. We had great Cinder sessions and an amazing Ceph/OpenStack integration session. I’ve led the Ceph/OpenStack integration session with Josh Durgin (Inktank). We had a good participation from the audience. I would like to specially thank Sage Weil, Haomai Wang, Edward Hope-Morley for their good inputs. The main purpose of… Read more →
Neutron as SDN controller ? That was probably to hottest topic during the summit. Beyond this topic the question was: neutron shouldn’t be responsible of all the things related to the API and delegated the management of flows to an external SDN controller. Some of neutron’s sessions attendees think that it is too complex to address things like scalability and… Read more →
As part of our OpenStack Professional Services and Managed Services entities, the need to have a DNS as a service has been growing for a while now. As you all already know (I hope! :)), eNovance is a major contributor to the different Openstack projects, no need to argue about that. One of our latest recruits is Designate, formerly known… Read more →
At eNovance we have a lot of devs and engineers at the current OpenStack summit in Hong Kong and we are striving to share with you the discussion going on here, today we bring you the summit view from Fabien, the discussions he had with the other OpenStackers at the design summit. My day was almost only focused on Swift… Read more →