Release 3.0.0
Released:
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April 22, 2014
The DuraCloud 3.0.0 release is the first step towards allowing DuraCloud to be run in a more distributed and efficient manner. Towards that end, the services framework has been removed in favor of handling the same tasks (primarily duplication between providers and bit integrity checking) through a scalable processing engine which is run outside of the DuraCloud instances themselves. This provides for better performance on the instances and better performance for the services, as well as less effort for DuraCloud users.
The primary features of release 3.0.0 are:
- Users of DuraCloud no longer need to manage services. The service framework has been replaced by backend a back-end task processing system that leverages the massively parallel processing capabilities of the cloud..
- Library updates, to keep the primary components of DuraCloud software up-to-date. Examples: Upgraded from Maven 2 build system to Maven 3. Upgraded the Spring Framework version from All DuraCloud modules have been upgraded from Spring Framework 2.5 to 4.0.2.
- Auditing framework dependencies on The auditing framework's use of ActiveMQ have been removed in favor of a more pluggable architecture allowing us to tie into any using an external queuing system. Audit Audit event logging are is now being handled by the same task processing framework (DuraCloud Mill)that is managing duplication and bit integrity checks.
- Media streaming capabilities updated to continue to work just as before, but without the need for the Media Streamer service.
Release 2.4.0
Released: September 20, 2013
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- A new Retrieval Tool, a companion to the existing Sync Tool, which is a command-line tool for the retrieving content from DuraCloud spaces.
- A new Bulk Bit Integrity Checker service, which can be run over content stored in Amazon to create a listing of checksums calculated for each file. This new service pairs well with the Bit Integrity Checker service (previously known as the Fixity Service), allowing the heavy processing to be handled in parallel using Hadoop on an Amazon EC2 cluster, and the simpler checks and comparisons to be handled by the DuraCloud instance.
- A new Duplicate on Demand service, which can be used to copy files from the primary Amazon store into another storage provider. This service pairs well with the Duplicate on Upload service (previously known as the Replication Service) by performing the large up-front copy using Hadoop on an Amazon EC2 cluster, then allowing Duplicate on Upload to watch for and add new files as they are uploaded.
- Integration of a new storage provider: Microsoft Windows Azure.
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