A Framework for Constraint-Based Deployment and Autonomic Management of Distributed Applications

TL;DR

This paper introduces a framework that uses declarative constraints and a solver to deploy distributed applications and autonomously adapt their configuration during execution to meet evolving goals.

Contribution

It presents a novel approach combining constraint-based deployment with autonomic management for distributed applications.

Findings

Automatic deployment based on declarative constraints

Autonomic reconfiguration during runtime

Framework ensures application goals are maintained

Abstract

We propose a framework for deployment and subsequent autonomic management of component-based distributed applications. An initial deployment goal is specified using a declarative constraint language, expressing constraints over aspects such as component-host mappings and component interconnection topology. A constraint solver is used to find a configuration that satisfies the goal, and the configuration is deployed automatically. The deployed application is instrumented to allow subsequent autonomic management. If, during execution, the manager detects that the original goal is no longer being met, the satisfy/deploy process can be repeated automatically in order to generate a revised deployment that does meet the goal.