DuraCloud 3.2 Release

[Bill Branan]

Hello Everyone,

I am happy to announce the release of DuraCloud version 3.2.0. This release is part one of a two-phase release; part two will include the updated DuraCloud Mill project, which handles much of the back-end processing for the DuraCloud hosted service. 

Below is a copy of the release notes, which describes the major focus points of this release. A more formal notice will be sent out to the larger community once the Mill release is completed. In the meantime, there is no requirement to use the Mill with the latest DuraCloud software, so if you are running DuraCloud locally, I would encourage you to pick up the new version and give it a spin!

Happy Holidays!

Bill Branan

DuraCloud Technical Lead

DuraSpace

Released: December 17, 2014

The DuraCloud 3.2.0 release is focused on two main themes: Integration with DPN, and integration with the DuraCloud Mill.

• DPN Integration: A new Snapshot Storage Provider was added to DuraCloud, which is used to integrate with Chronopolis, allowing DuraCloud and Chronopolis to function together as a single DPN node.
• DuraCloud Mill Integration: The back end of DuraCloud, where all of the bits are processed, has moved into system called the DuraCloud Mill. This system manages the audit processing, manifest generation, duplication, and bit integrity functions of the DuraCloud hosted service. This version of DuraCloud transitioned many of those functions to the Mill, and added REST API and UI components which allow users to interact with the Mill to retrieve things like space audit logs and manifest files.

Beyond the two major themes, this release includes significant housekeeping work as well. The full set of project dependencies were reviewed, updated, and significantly pruned. Each piece of the DuraCloud software was reviewed to ensure its configuration and dependency set were up-to-date and correct. Much of this was in preparation for the DuraCloud software being hosted by Sonatype, which means that the 3.2.0 release is the first DuraCloud release to be available in Maven Central. This makes the DuraCloud software much easier to reuse in other Java projects.

Also notable is a new "jump start" feature in the DuraCloud SyncTool which enables users to dramatically increase their throughput for first time uploads of large numbers of small files.  See DuraCloud Sync Tool or DuraCloud Sync Tool - Command Line for details.

To see the list of housekeeping tasks and bug fixes in release 3.2.0, see the JIRA issue tracker. The work completed on the DuraCloud Mill is maintained in a stand-alone JIRA project. The work on the Chronopolis integration is also in a stand-alone JIRA project.