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2014-04-02 12:02:04 -0500 answered a question glance image list failing after adding second control node

Can you try this:

  1. Get token from keystone through your vip? It seems you got token from keystone through one controller other than vip above.

  2. Use the token to access glance service through vip

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2014-04-01 09:32:36 -0500 answered a question When creating a volume from an image, openstack always uses root disk space?

Can you supply more info: 1. Which cinder driver are you using? 2. How much free space is left on your backend storage?

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2014-03-28 22:07:15 -0500 asked a question Question about Nova cells and Global Cinder

I am confused about reading the original BP ([1]) and operation guide of nova-cells, the question as follows:

One aim of nova-cells is to allow additional scaling and (geographic) distribution without complicated database or message queue clustering, and OpenStack Compute cells are designed to allow running the cloud in a distributed fashion without having to use more complicated technologies, or being invasive to existing nova installations.

The typical use case for cells is a cloud with two independent sites with a single API endpoint.

However, take cinder into account, it will require Cinder act as a shared service for the two sites?

For two independent sites with existing cloud installations, in order to upgrade to cells later, we must make sure the storage networks of these sites connected to each other as early as building the two sites?

In order to provide shared service for two sites, we must use the storage with geographic distribution? Among current Cinder backend drivers, it seems there are only glusterfs and ceph?

Furthermore, I think Cinder need to provide the "site-affinity“ filter for this scenario, does it?

Is my understanding correct?

[1] (

2014-03-26 20:22:14 -0500 commented answer Failure to create instance via `nova boot` & creating cinder volume simalteniously on F20 RDO Havana

So, from the cinder log, it seems your database cannot be connected by cinder.