在看资料时发现最新的GT3.9.5中的数据管理部分加了个Data Replication
Service。官方网站上介绍,它的功能主要是产生本地的副本,即使用RFT把网格中需要的文件传输到本地,并自动向RLS注册副本。
下面是原文介绍:
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 source 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 various 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 included 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.

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