SC13 Home > SC13 Schedule > SC13 Presentation - SDQuery DSI: Integrating Data Management Support with a Wide Area Data Transfer Protocol

SCHEDULE: NOV 16-22, 2013

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SDQuery DSI: Integrating Data Management Support with a Wide Area Data Transfer Protocol

SESSION: Data Management in the Cloud


TIME: 11:00AM - 11:30AM


AUTHOR(S):Yu Su, Yi Wang, Gagan Agrawal, Rajkumar Kettimuthu


In many science areas where datasets need to be transferred or shared, rapid growth in dataset size, coupled with lack of increase in wide area data transfer bandwidth, is making it extremely hard for scientists to analyze the data. This paper addresses the current limitations by developing SDQuery DSI, a GridFTP plug-in which supports flexible server-side data subsetting over HDF5 and NetCDF data formats. The GridFTP server is able to dynamically load this tool to download any data subset. Different queries types (query over dimensions, coordinates and values) are supported by our tool. A number of optimizations for improving indexing (parallel indexing), data subsetting (performance model) and data transfer (parallel streaming) are also applied. We have extensively evaluated our implementation. We compared our GridFTP SDQuery DSI with GridFTP default File DSI and showed that in different network environments, our method can achieve better efficiency in almost all cases.

Chair/Author Details:

Erwin Laure (Chair) - KTH Royal Institute of Technology

Yu Su - Ohio State University

Yi Wang - Ohio State University

Gagan Agrawal - Ohio State University

Rajkumar Kettimuthu - Argonne National Laboratory

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The full paper can be found in the ACM Digital Library