Managing an OpenStack public cloud can be tough and building it properly is even harder.
You can not predict the workload of your platform, customers do what they want (yes they pay for this!).
So yes, cloud performance are often unpredictable!
Recent studies showed that while running a long-standing benchmark on several cloud platforms, they experienced a performance drop-down of 40% (crazy isn’t it?).
However, there are some simple facilities in OpenStack that allow you to have a better control of the resources that you offer to your customers/users.
This is what I am going to briefly explore in this article.
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The Havana cycle introduced a QoS feature on both Cinder and Nova.
Quick tour of this excellent implementation.
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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 this session was to gather ideas to improve the Ceph integration into Openstack.
Eventually, we built a draft of the Icehouse’s roadmap.
For those of you who were not attending the session and are curious to learn more about what’s going to happen in the next few months this article is for you!
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OpenStack has seen a lot of PaaS oriented project coming for the last few months.
Heat, the orchestration service was introduced during Grizzly, Havana just got the support of the Docker hypervisor and Trove the Database as a Service project is planned for Icehouse.
More recently, Manila the Distributed Filesystem as a Service and Raksha the Data Protection As Service appeared.
So, want to bring OpenStack to the next level?
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During this article, I am going to explain why I believe that CoreOS is an excellent operation system for your OpenStack controllers.
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The Havana milestone release of the Horizon dashboard brought an absolutely wonderful panel for Heat, the orchestration service and Ceilometer, the metering service.
Quick preview before the Havana’s official release.
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It has always been a huge pain to manage token in MySQL espacially with PKI token since they are larger than UUID token.
Almost a year ago I wrote an article to purge token via a script.
So finally, we have an easy option to purge all expired token.
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Recently I encountered a weird issue: the CPU load of my hosts was quite high with a load average of 20 and picks to 40.
First, I had a look at the guest system since the high load was generated by guests.
Unfortunately the VM was not doing anything, no IOPS and no CPU.
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