openstack/nova
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Sandy Walsh 2011-04-08 15:45:42 -03:00
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doc/source/devref/zone.rst
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@ -17,7 +17,7 @@
Zones
=====
A Nova deployment is called a Zone. At the very least a Zone requires an API node, a Scheduler node, a database and RabbitMQ. Pushed further a Zone may contain many API nodes, many Scheduler, Volume, Network and Compute nodes as well as a cluster of databases and RabbitMQ servers. A Zone allows you partition your deployments into logical groups for load balancing and instance distribution.
A Nova deployment is called a Zone. At the very least a Zone requires an API node, a Scheduler node, a database and RabbitMQ. Pushed further a Zone may contain many API nodes, many Scheduler, Volume, Network and Compute nodes as well as a cluster of databases and RabbitMQ servers. A Zone allows you to partition your deployments into logical groups for load balancing and instance distribution.
The idea behind Zones is, if a particular deployment is not capable of servicing a particular request, the request may be forwarded to (child) Zones for possible processing. Zones may be nested in a tree fashion.