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Computational Grids have the capability to provide the main execution platform for high performance distributed applications. Grid resources having heterogeneous architectures, being geographically distributed and interconnected via unreliable network media are extremely complex and prone to different kinds of errors, failures and faults. Grid is a layered architecture and most of the fault tolerant...
Grid environment has significant challenges due to diverse failures encountered during job execution. Computational grids provide the main execution platform for long running jobs. Such jobs require long commitment of grid resources. Therefore fault tolerance in such an environment cannot be ignored. Most of the grid middleware have either ignored failure issues or have developed adhoc solutions....
This paper presents a critical review of the existing fault tolerance mechanism in grid computing and the overhead involved in terms of reprocessing or rescheduling of jobs, if in case a fault arisen. For this purpose we suggested the parallel shadow image server (PSIS) copying techniques in parallel to the resource manager for having the check points for rescheduling of jobs from the nearest flag,...
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