Open Stack

We've just committed a first set of patches to gerrit that address this blueprint:

https://blueprints.launchpad.net/swift/+spec/cluster-federation

Quoting from that page: "The goal of this work is to enable account contents to be dispersed across multiple clusters, motivated by (a) accounts that might grow beyond the remaining capacity of a single cluster and (b) clusters offering differentiated service levels such as different levels of redundancy or different storage tiers. Following feedback at the Portland summit, the work is initially limited to dispersal at the container level, i.e. each container within an account may be stored on a different cluster, whereas every object within a container will be stored on the same cluster."

It is work in progress, but we'd welcome feedback on this thread, or in person for anyone who might be at the hackathon in Austin next week.

The bulk of the new features are in this patch:
https://review.openstack.org/51236 (Middleware module for container forwarding.)

There's a couple of patches refactoring/adding support to existing modules:
https://review.openstack.org/51242 (Refactor proxy/controllers obj & base http code)
https://review.openstack.org/51228 (Store x-container-attr-* headers in container db.)

And some tests...
https://review.openstack.org/51245 (Container-forwarding unit and functional tests)

Regards,
Alistair Coles, Eric Deliot, Aled Edwards

HP Labs, Bristol, UK
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