Dps10ReleaseNotes

From CEDPS

Data Placement Service

The Data Placement Service (DPS) presents a layered architecture of reusable components. Within the DPS architecture, the Bulk Transfer Service (BuTrS) is a low-level, fundamental component for managing bulk data transfers. BuTrS is the first component of DPS to be released.

1 Overview
2 Features
3 Dependencies
4 Downloads
5 Installation
6 Interface Guide
7 Architecture

Overview

The Bulk Transfer Service (BuTrS) is a lightweight, simple, efficient utility for bulk data transfer with priorities.

Lightweight
- Distributed in a single Java archive
- Minimal third-party dependencies
- 1-step installation (Add jar to classpath) with no configuration required
Simple
- Zero administrative overhead (no containers, daemons, or databases)
- Conventional, easy-to-use Java API (no RPC overhead)
- Familiar callback style notification of transfer results
Efficient
- Concurrent transfers on all pairwise combinations of transfer endpoints
- Low constant overhead, linear-time algorithms for inserting, deleting, and reprioritizing bulk transfers
- In-memory data structures to avoid database or file IO overhead

Features

Features in this BuTrS release:

Create bulk transfers
Destroy bulk transfers
Change priority of individual data transfer
Find data transfer object by (source, sink) URL pair
Find data transfer objects by transfer status
Callback notification of transfer status change
Supports GridFTP third-party transfers
Supports most GridFTP transfer options
Retries failed transfers up to defined maximum

Dependencies

BuTrS depends on the following components

Downloads

BuTrS is available in the following formats:

Installation

If you downloaded the Java archive, add it to your classpath and make sure the depenencies are properly installed. If you downloaded the GPT source package, you will need a recent version of Grid Packaging Tools (GPT) such as the version distributed with the Globus Toolkit 4.0.x. To install, issue the command "$GPT_LOCATION/sbin/gpt-build globus_butrs_service-0.0.tar.gz".