[Openstack] Cells use cases

Tim Bell Tim.Bell at cern.ch
Thu Oct 3 15:53:48 UTC 2013

At CERN, we're running cells for scalability. When you go over 1000 hypervisors or so, the general recommendation is to be in a cells configuration.

Cells are quite complex and the full functionality is not there yet so some parts will need to wait for Havana.


From: Dmitry Ukov [mailto:dukov at mirantis.com]
Sent: 03 October 2013 16:38
To: openstack at lists.openstack.org
Subject: [Openstack] Cells use cases

Hello all,
I've really interested in  cells but unfortunately i can't find any useful use cases of them.
For instance I have 4 DCs and I need single entry point for them. In this case cells are  a bit complicated  solution. It's better to use multiple regions in keystone instead

The only one good reason for cells, which I've found, is to organize so-called failure domains, i.e. scheduling on another DCs in case of failures.

Does anyone have different use cases or vision on cells usage?
Thanks in advance.

Kind regards
Dmitry Ukov
IT Engineer
Mirantis, Inc.

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