Open Stack

I'm pleased to announce that Swift 1.7.5 has been released. This
release is the work of twenty-seven contributors and includes several
important new features and bug fixes.

You can get a tarball of this release at
https://github.com/openstack/swift/archive/1.7.5.tar.gz. Like all
Swift releases, you can upgrade your currently running clusters to
this version with no client downtime.

The (https://github.com/openstack/swift/blob/master/CHANGELOG) is also
available with the source.

This release would not have been possible without the hard work of the
many contributors and core developers who spent time submitting and
reviewing patches. With the addition of the nine new contributors in
this release, Swift has eighty-four total contributors. You can see
the full list of contributors at
https://github.com/openstack/swift/blob/master/AUTHORS.

I'd like to highlight a few of the bigger changes to Swift that have
gone into this release.

CORS

Swift now supports setting CORS (http://en.wikipedia.org/wiki/Cross-
origin_resource_sharing headers on your data. This allows HTML5 forms,
browser uploads, and JavaScript to work between your website and your
Swift storage. Users can set `X-Container-Meta-Access-Control-Allow-
Origin`, `X-Container-Meta-Access-Control-Max-Age`, and `X-Container-
Meta-Access-Control-Allow-Headers` on their containers to allow CORS
support.

Custom log handlers

Custom log handlers allow depoyers to more easily integrate with
external log processors. This mechanism provides the ability to add
your own handler to the log messages that Swift generates. The full
docs are at
http://docs.openstack.org/developer/swift/admin_guide.html#custom-log-handlers.

Multi-Range GETs

Swift has always supported single range requests, but the HTTP spec
allows for requesting multiple ranges of a resource at once. Swift now
supports this feature on standard objects, and support against large
object manifests should be available in a later release.

Configurable constraints

Deployers can set the client limits in a config file. These limits
include the maximum object size, the maximum number of items returned
in listings, and the limits on metadata. You can read the fully-
commented sample config file at
https://github.com/openstack/swift/blob/master/etc/swift.conf-sample.

Replicators can run against a specific partition or device

Replicators can now replicate a specific partition or device. This
feature allows deployers to prioritize data replication for data that
may not be fully replicated. For example, although Swift detects
missing replicas automatically, a deployer can choose to replicate a
specific set of data before the automatic systems detect the error.


--John


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