Title :
A Highly Available Grid Metadata Catalog
Author :
Jensen, Henrik Thostrup ; Kleist, Josva
Author_Institution :
Dept. of Comput. Sci., Aalborg Univ., Aalborg
Abstract :
This article presents a metadata catalog, intended for use in grids. The catalog provides high availability, by replication across several hosts. The replicas are kept consistent using a replication protocol based on the Paxos algorithm. A majority of the replicas must be available in order for the system to function. The data model used in the catalog is RDF, which allows users to create their own name spaces and schemas. Querying is performed using SPARQL. Additionally the catalog can be used as a synchronization mechanism, by utilizing a compare and swap operation. The catalog is accessed using HTTP with proxy certificates, and uses GACL for flexible access control. The performance of the catalog is tested in several ways, including a distributed setup between geographically separated sites.
Keywords :
authorisation; cataloguing; data models; grid computing; meta data; query processing; synchronisation; transport protocols; Paxos algorithm; data model; flexible access control; grid metadata catalog; proxy certificates; replication protocol; synchronization mechanism; Application software; Availability; Computer science; Data models; Databases; Grid computing; Protocols; Resonance light scattering; Resource description framework; Testing; data management; distributed concenseus; grid;
Conference_Titel :
Advanced Information Networking and Applications, 2009. AINA '09. International Conference on
Conference_Location :
Bradford
Print_ISBN :
978-1-4244-4000-9
Electronic_ISBN :
1550-445X
DOI :
10.1109/AINA.2009.108
