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OpenStack for Architects by Ben Silverman, Michael Solberg

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OpenStack service specifics

In this section, we'll walk through each of the OpenStack services and outline the H/A strategy for them. While most of the services can be configured as Active/Active behind a load balancer, some of them must be configured as Active/Passive and others may be configured as Active/Passive. Some of the configuration is dependent on a particular version of OpenStack as well, especially, Ceilometer, Heat, and Neutron. The following details are current as of the Liberty release of OpenStack.

OpenStack web services

As a general rule, all of the web services and the Horizon dashboard may be run Active/Active. These include the API services for Keystone, Glance, Nova, Cinder, Neutron, Heat, and Ceilometer. The scheduling services ...

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