diff options
Diffstat (limited to 'specs')
| -rw-r--r-- | specs/high-availability.rst | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/specs/high-availability.rst b/specs/high-availability.rst index afe33d5b0..538bf5af5 100644 --- a/specs/high-availability.rst +++ b/specs/high-availability.rst @@ -141,9 +141,9 @@ provide network high-availability for tenant networks. [Multiple L3/DHCP Agents]: https://wiki.openstack.org/wiki/Neutron/L3_High_Availability_VRRP -Glance: Glance can use different back-ends to store OpenStack images. Examples -include Swift, Ceph, Cinder and the default filesystem back-end. Although -it is not required, it is highly recommended to use a backend that is highly +Glance: Glance can use different back ends to store OpenStack images. Examples +include Swift, Ceph, Cinder and the default filesystem back end. Although +it is not required, it is highly recommended to use a back end that is highly scalable and fault-tolerant. Just as with the rest of the OpenStack API's, HAProxy and Keepalived can @@ -162,9 +162,9 @@ hashes and shared high water marks. Cinder: As with other stateless services, HAProxy can provide high availability and scalability to cinder-api. RabbitMQ clustering and mirrored queues can provide high-availability and scalability for RPC messaging among -Cinder services. At the time of this writing, the only Cinder backend +Cinder services. At the time of this writing, the only Cinder back end supported is LVM. LVM can be made [highly-available][] or a new Cinder -backend, such as [Ceph][], can be added to Kolla which supports high +back end, such as [Ceph][], can be added to Kolla which supports high availability and scalability for tenant-facing block storage services. Due to limitations described [here][], the Cinder volume manager can not be reliably deployed in an active/active or active/passive fashion. @@ -261,7 +261,7 @@ Work Items 4. Add clustering/mirrored queue support to RabbitMQ container set. 5. Add L3/DHCP agent HA to existing Neutron agent container set. 6. Create Swift containers. -7. Add/configure the Glance backend to support HA and scalability. +7. Add/configure the Glance back end to support HA and scalability. 8. Add/configure HAproxy for services, like keystone or horizon. Testing |