Conference

Fourth OpenStack meetup in Paris with a fully booked amphitheater at Epita, amazing growth of the french community. As a reminder, the first meetup happened June 10, 2013 with only 18 participants. OpenStack in production envt / Behind the scene Presenters: Anne Sébastien Han (sebastien-at-enovance.com) and Razique Mahroua (razique.mahroua-at-enovance.com) both Cloud engineers and OpenStack contributors. Upgrades They both told their stories about how they’ve upgraded OpenStack from Cactus to Diablo to Essex to Folsom in a production environment. Networking and User management changed a lot from the early version to the recent ones, it was challenging to upgrade. Few advices, keep in mind to keep a devt environment to check everything before changing anything on your production environment. There is always something that you cannot anticipate. We’ve migrated around 60 instances. ...

Julien Niedergang, is a pre-sales SUSE engineer, curious about OpenStack, he presented SUSE strategy and solutions based on Crowbar, Chef and OpenStack. Look into the past 1960-1980 Time sharing Atomic bomb, end of lamps in computing. Bull in 1956 patents time sharing. Mainframes, computing is more and more necessary to achieve big projects. IBM 370 were essential for Apollo project. In 1980, big companies purchase their supercomputer and families get access to computing too. ...

Google regularly invites students and professional to Tech Talk sessions, this time I was invited in their Paris office for a talk about Testing at Google. This is one of the first Tech Talk organized in Paris. Introduction Vincent, our host, is in charge of testing You Tube search and discovery infrastructure. Opened in 2011, more than 80 engineers from then 20 countries are currently working at Google Paris. Around 500 persons works globally in France. The team isn’t dedicated to the french market, but targeted to all countries in the world. I’m glad to hear that. ...

I’ve attended the first Ceph Workshop in Amsterdam, Nov 2, 2012, with all the Ceph gurus, Sage Weil, Wildo den Hollander, Ross Turk, Gregory Farnum presenting this outstanding distributed storage technology. I’m sharing with you my notes. Keynote by Wildo den Hollander 42on (@widoth) partners of the first ever workshop day inktank - the founders providing services & support contributed 90% of ceph code 42on spinoff of European company which now focus on Ceph Dell gave gears for Demo facilities Why Ceph ? World of storage is changing everyday, now storing Petabytes of data How to store it is a lot of work Do we use proprietary systems ? How do we scale ? Does that fit in our budget Use Ceph Fully distributed without any SPoF Scales with you into the Petabytes Runs on commodity hardware Keynote by Sage Weil (@liewegas, sage@inktank.com) First ever Ceph day Unified Distributed System Why you should care diverse storage needs object storage block devices (for VMs) with snapshots, cloning shared file system with POSIX, coherent caches structured data: files, block devices, or objects ? scale terabytes, petabytes, exabytes heterogeneous hardware time ease of admin no manual data migration, load balancing painless scaling expansion and contraction seamless integration cost linear function of size, of performance incremental expansion no fork lift upgrades no vendor lock-in choice of hardware and software open What is it, what it’s for It’s a storage system that stores: Objects native API or RESTful API Blocks thin provisioning snapshots layering/cloning Files strong consistency, snapshots It’s a distributed storage system that scale from 10s to 10 000 of machines terabytes to exabytes Which is fault tolerant - no SPoF how it works - architecture - ceph object model ...