Towards Grid Monitoring and deployment in Jade, using ProActive

This document describes our current effort to gridify Jade, a java-based environment for the autonomic management of clustered J2EE application servers, developed in the INRIA SARDES research team. Towards this objective, we use the java ProActive grid technology. We first present some of the challenges to turn such an autonomic management system initially dedicated to distributed applications running on clusters of machines, into one that can provide self-management capabilities to large-scale systems, i.e. deployed on grid infrastructures. This leads us to a brief state of the art on grid monitoring systems. Then, we recall the architecture of Jade, and consequently propose to reorganize it in a potentially more scalable way. Practical experiments pertain to the use of the grid deployment feature offered by ProActive to easily conduct the deployment of the Jade system or its revised version on any sort of grid

UNE APPROCHE À COMPOSANT POUR L'ORCHESTRATION DE SERVICES À LARGE ÉCHELLE

This thesis focuses on the distributed orchestration of services, resulting (1) from an explicit decomposition of an orchestration into sub-orchestrations, located on physical remote sites to ensure protection of data for example, or (2) from a constructive approach whereby existing and possibly heterogeneous orchestrations are coupled in order to build a global and still distributed orchestration. Service orchestrations reflect business processes, sometimes lasting long, which thus have to be reconfigurable at runtime. This thesis introduces an execution support for distributed, heterogenous, dynamically reconfigurable orchestrations, while enabling a global management. A service orchestration can be considered along its two associated dimensions : temporal reflecting the chain of service invocations during time, spatial which makes it explicit which services are needed to be invoked in order for the orchestration to take place. We thus promote a new model, based upon a software component approach, for service oriented applications, inspired partly from SCA and SCA/BPEL, but allowing to represent and manipulate these two dimensions at once. Our approach grounds upon a model for software components which are distributed and dynamically adaptable, thus inheriting from these qualities of distribution and dynamic reconfiguration. We describe an implementation of our model using the "Grid Component Model" reference implementation on top of the distributed active objects library named "ProActive". We validate experimentally our approach through a servicebased application for the installation and management of a park of OSGi gateways.Cette thèse s'intéresse à l'orchestration de services répartie, résultat (1) d'une approche explicite de découpage d'une orchestration en sous-orchestrations localisées sur des sites physiques distants à des fins de protection de données par exemple, ou (2) d'une approche constructive issue du regroupement d'orchestrations existantes potentiellement hétérogènes, afin de constituer une orchestration globale mais répartie. Les orchestrations de services reflètent des processus métiers, souvent de longue durée, et qui doivent donc pouvoir être adaptables dynamiquement à l'exécution. Cette thèse propose un support d'exécution pour des orchestrations réparties, hétérogènes, dynamiquement reconfigurables, et permettant une administration globale. Une orchestration de services peut être abordée selon ses deux dimensions : temporelle qui reflète l'enchainement des services dans le temps, spatiale qui reflète les services que l'orchestration a besoin d'invoquer afin de s'exécuter. Nous proposons ainsi un nouveau modèle à composants pour les applications orientées services, inspiré en partie de SCA et de SCA/BPEL, mais permettant de représenter ces deux dimensions. Notre approche se fonde sur un modèle de composants logiciels répartis et dynamiquement reconfigurables, et hérite donc des qualités de répartition et de reconfiguration dynamique. Nous décrivons une mise en oeuvre au dessus de l'implémentation du modèle "Grid Component Model" sur la plateforme de programmation répartie à objets actifs "ProActive". Nous validons notre approche expérimentalement via une application à services d'installation et d'administration d'un parc de passerelles basées sur OSGi