Paper Info
Title
A Prototype toward Japanese Virtual Observatory (JVO)
Abstract
The Japanese Virtual Observatory (JVO) aims to provide astronomers to access federated astronomical databases (especially SUBARU, Nobeyama and ALMA) and data analysis environment by using the Grid technology. We defined a unified query language to access federated astronomical databases, the JVOQL, and constructed a prototype of the JVO. We adopted Globus Tool Kit 2 (GTK2) in this prototype to see its effectiveness in VO tyoe application, especially for remote operations and file transfers, and UDDI for looking up services.We found that the system worked as we had expected, however, it took very long to initiate each Grid process. Thus we replaced the GTK2 with a tool distributed by NSF Middleware Initiative, and shortened the polling intervals of the job-manager from 30 seconds to 3 seconds. As a result, the serious problem has been partially resolved --the elapsed time for a query became about a half compared with the previous one.
Year
DOI
Venue
2004
10.1109/SAINTW.2004.1268692
SAINT Workshops
Keywords
Field
DocType
astronomical observatories,astronomy computing,distributed databases,grid computing,query languages,query processing,Globus Tool Kit 2,JVOQL,Japanese Virtual Observatory,NSF middleware initiative,UDDI,VO type application,data analysis environment,federated astronomical databases,file transfers,grid process,grid technology,job manager,polling intervals,remote operations,unified query language
Middleware,Query language,Grid computing,Computer science,Polling,Distributed database,Sextant (astronomical),Grid,Operating system,Database,Virtual observatory
Conference
Volume
ISBN
Citations 
314
0-7695-2050-2
1
PageRank 
References 
Authors
0.41
0
7
Name
Order
Citations
PageRank
Masatoshi Ohishi122.05
Yoshihiko Mizumoto221.37
Naoki Yasuda331.73
Yuji Shirasaki421.37
Masahiro Tanaka5567.00
Satoshi Honda621.37
Yoshifumi Masunaga7327414.11