International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 99 - Number 16 |
Year of Publication: 2014 |
Authors: Mahmoud El Samad, Amer Bakhach, Mohammad Hussein |
10.5120/17461-8398 |
Mahmoud El Samad, Amer Bakhach, Mohammad Hussein . A New Protocol for Resource Discovery in Grid Systems. International Journal of Computer Applications. 99, 16 ( August 2014), 43-49. DOI=10.5120/17461-8398
Resource discovery is a real challenge in grid systems due to the dynamicity of nodes (i. e. any node can join or leave the system at any moment). This paper proposes a new protocol for resource discovery in dynamic grid systems. The hypothesis is that a grid is composed from a set of Virtual Organization (VO). The idea is to define a Distributed Hash Tables (DHTs) for each VO. The discovery inside a VO is a traditional discovery based on DHTs. The resource discovery between Virtual Organizations, i. e. between DHTs, is achieved through a new protocol enabling a persistent communication between all the VOs. The main advantage of the proposed protocol is to enable a robust global discovery between unstable VOs of a grid (any node or even VO can leave the system at any moment). We evaluate the proposed protocol by experiments showing its feasibility and benefits.