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The scaling requirements of storage for OpenStack

 

Hi there,

Given Openstack's mission of being massively scalable, should the likes of Cassandra and Riak be considered for storage? I see that the desirable properties for storage are horizontal scaling with no single point of failure. I therefore wonder if the existing document and SQL stores ultimately compromise the Openstack mission in this regard.

Thanks in advance for your thoughts on this topic.

Kind regards,
Christopher