what's new in openstack ocata
Post on 11-Apr-2017
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$ whoami
- Sa Pham | sapd@vccloud.vn- System Engineer at VCCloud- R&D about Openstack, Docker Container EcoSystem- At VCCloud We have
- Private and Public Cloud based on Openstack from 2013- With 150+ nodes compute in production- 4+ PB Data
Ocata Release
- 4 months after Newton version (earlier 2 months)- Key themes:
- Stabilization- Scalability- User Experience- Manageability
"In the Ocata cycle, Cells v2 has now moved to the required deployment model for model," - Johnathan Bryce, Executive Director of the OpenStack Foundation
"By default, an Ocata deployment now needs to configure at least one new Cell V2," the release notes state.
Nova in change
At a basic level, Nova cells creates a hierarchy of Nova installs, each with its own database, message queue backend, scheduler, and compute nodes.
So… What is Cells?
- Require create cell when deploy
nova-manage cell_v2 create_cell --name cell1
nova-manage cell_v2 discover_hosts
Nova in change
Nova in change
- Nova-placement-api used to track resource provider inventories and usage- Compute node- Share storage pool- External IP pool- DPDK, SR-IOV
- In Ocata Release, nova-placement-api was separated from nova-api code and running service under Apache
- Compute service need placement credentials at placement section- In the future, maybe it will be separated and become a new project with
name: Quota as a Service.
Glance?
- New method to share image: community- Users can now create “community” images, making them available for
everyone else to use.
What’s about Cinder?
- Before, cinder-volume service only accepts Active/Passive High Availability configurations
- Now, Active/Active HA Cinder can run in clustered mode (not verified)
Neutron?
- Support for Routed Provider Networks in Neutron - Nova scheduler uses this inventory as a hint to place instances based on
IPv4 address availability in routed network segments.
Others but not verified- Magnum now supports DC/OS as a cluster type as well as Kubernetes on
Suse- Zaqar can now use Swift as a storage option, providing built-in replication
capabilities.
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