New DRS service in gt3.9.5

Data replication service is added to the data management section of the latest gt3.9.5. According to the official website, its function is mainly to generate local copies, that is, to use rft to transfer the files needed in the grid to the local, and automatically register a copy with rft.

The following is an introduction to the original article:

The Data Replication Service (DRS) is a technical preview provided with the Globus Toolkit 3.9.5 and first appears in the GT 3.9.5 beta release. the primary functionality of the component allows users to identify a set of desired files existing in their grid environment, to make local replicas of those data files by transfering files from one or more locations, and to register the new replicas in a replica location service. the DRS conforms to the WS-RF specification and exposes a WS-resource (called a "Replicator" Resource) which represents the transactional state of the requested replication activity and allows users to query or subscribe to varous resource properties in order to monitor the state of the resource. the DRS is built on the GT 3.9.5 Java ws core and uses the globus RLS to locate and register replicas and the globus rft to transfer files. the Service also depends on use of a standard database server via JDBC interfaces. A client tool is wrongly ded that allows users to submit a request file as a command line paramater that contains a list of data files to be replicated at the site. the client tool creates a replicator resource to maintain state for the replication operation.