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Tuesday, November 4 • 12:05 - 12:45
Pumphouse: Workload Migration and Rolling Upgrades of OpenStack Cloud

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Just when you've safely got all your applications stood up in Grizzly, bam, it's time for Havana. So you scramble, but before you finish shutting workloads down, irritating users, and getting new machines, it Icehouse! Can you stop the madness?



It's no secret that OpenStack's upgrade path is ... less than optimal.  When you're ready to make the jump, you can simply go, buy new hardware and install a brand-new shiny OpenStack cluster with one of the many tools on the market.  But what are you going to do with applications that are already installed and working in your existing cloud? How to avoid the extended downtime while you ask all your users to shut down their workloads and move to the new installation?



And how much it will cost you to install a complete set of hardware for a replacement cloud with the same capacity as the original one?



Fortunately, there's Pumphouse. Pumphouse enables you to migrate virtual servers from a legacy OpenStack cloud to a running Icehouse installation, preserving the runtime parameters and metadata of those virtual servers as much as possible, without having to duplicate your entire hardware setup.  



In this session, I plan to explain use cases we ve been trying to solve, describe the migration strategy and migration paths we ve implemented, and give an overview of major limitations and requirements of our approach. I will also give a live(ly) demo of how the application works. We'll also look at the complementary tools required to make the deployment production ready.


Oleg Gelbukh

Principal Engineer
Oleg Gelbukh is a Principal engineer and a tech lead for the Labs team at Mirantis. Oleg joined the Mirantis OpenStack research initiative shortly after it started and was an active participant. His focus was shared storage in cloud environments and network infrastructure of OpenStack... Read More →

Tuesday November 4, 2014 12:05 - 12:45
Marketplace Theater

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