Embed Size (px)
Citation preview
High Availability in OpenStack
from DevOops! side
Emilien Macchi, Sébastien HanCloud Engineers @ eNovance
whoarewe
Seb
- DevOps- Ceph Specialist- Blogger
Emile
- DevOps- Doc Contributor- Quantum Fanatic
ContributionsPacemaker Resource AgentsOfficial DocumentationPuppet Modules
ExperiencesMedium Public CloudLarge Public Cloud
Look further
Agenda
Contributions
- Essex / Folsom / Grizzly- Covers SPOF services- Future: no future
Pacemaker Resource Agents
Download them all!https://github.com/madkiss/openstack-resource-agents
- Active / Passive mode- MySQL- RabbitMQ- OpenStack APIs- Need contributors- Future: Active / Active
Official Documentation
RTFM !http://docs.openstack.org/trunk/openstack-ha/
- Update modules for Grizzly - Nova | Cinder | Quantum are HA aware
- Make modules for HA deployments (Work in Progress)
Puppet Labs
Experiences
Use case #1: Medium-Size Public Cloud
coming soon
✓ Easy and fast deployment (with Puppet)✓ Enough for our needs
✗ Not scalable enough✗ Split brains risks✗ DRBD?
Can be improved:Migrate to Grizzly, change for active / active...
Feedback
Use case #2: Large-Size Public Cloud
✓ Highly scalable✓ Maintenance✓ The Network scheduler allows us to scale L3
✗ Networking: L3 is not HA✗ OVS plugin does not scale (L2 isolation)
In progress : testing cells
Feedback
To infinity... and beyond
- Nova-conductor (horizontal scaling)- Ceilometer improvements- Quantum Load Balancing & Metadata agents
Newcomers
Des questions ?
E-mail : [email protected] : EmilienMTwitter : @EmilienMacchiBlog : http://my1.fr/blog
E-mail : [email protected] : lesebTwitter : @sebastien_hanBlog: http://sebastien-han.fr/blog
