gLite sur Grid'5000: vers une plate-forme d'expérimentation à taille réelle pour les grilles de production
Abstract
The Grid has become a huge and important instrument, playing a key role in the everyday work of many researchers. A large amount of software is being developed both to manage the grid infrastructure itself (gLite middleware), to facilitate the task of grid users (e.g workflow managers, pilot job managers, etc.), and to run the computations. That software must be designed to handle network and services outages in a highly distributed environment, while still providing the expected performance. It is inconvenient to test software using the production infrastructure, since (1) it might not exhibit the behaviour that is required to test extreme conditions (services are unlikely to crash as often as required when testing fault tolerance); (2) it might not be possible to replace key parts of the infrastructure without degrading the user experience; (3) experiments are not easily reproduced in production conditions. In this paper, we present our ongoing work on deploying the gLite middleware on the Grid'5000 testbed, a scientific instrument designed to support research on parallel, large-scale and distributed computing. Tools were written to automatize the deployment of the gLite middleware on several sites and clusters, resulting in a deployment of 5 sites and 8 clusters on 441 machines in less than an hour. This provides a solid basis for future experiments on the gLite middleware and on software that interact with the middleware.
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glite-grid5000-slides.pdf (785.3 Ko)
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