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components in openstack architecture

asked 2013-10-23 10:28:22 -0500

Zaino gravatar image

updated 2013-10-25 16:35:23 -0500

smaffulli gravatar image

In Openstack Cloud Administration Guide page number 41 following statement is written:

A "cloud controller" contains many of these components, and it represents the global state and interacts with all other components.

What does it means ?

If we have deployed different services on different nodes i-e one node for quantum, one node for glance, 4 nodes for compute (nova), one node for cinder etc then still cloud controller will contain all components e.g glance, cinder, quantum, nova etc

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answered 2013-10-24 16:50:33 -0500

marcelodieder gravatar image

Hello, a cloud controller is a suggestion architecture. You can install your Openstack all-in-one or one component per host.

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Agreed but i have different question. If you deploy openstack mutinode then still cloud controller will contain many of components e.g glance,quantum etc to maintain global state ?

Zaino gravatar imageZaino ( 2013-10-27 07:18:37 -0500 )edit

Exact. The multinode means that you have many nova and quantum distribuited between each node. But if you will need separate the Cloud Controller, per example to a HA solution, you need distribute many components with HA of the Cloud Controller. I hope this answer helped you.

marcelodieder gravatar imagemarcelodieder ( 2013-10-28 21:35:54 -0500 )edit

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Asked: 2013-10-23 10:28:22 -0500

Seen: 239 times

Last updated: Oct 25 '13