A Novel Service Composition Approach for Application Migration to Cloud

Abstract

Migrating business applications to cloud can be costly, laborintensive, and error-prone due to the complexity of business applications, the constraints of the clouds, and the limitations of existing migration techniques provided by migration service vendors. However, the emerging software-as-aservice offering model of migration services makes it possible to combine multiple migration services for a single migration task. In this paper, we propose a novel migration service composition approach to achieve a costeffective migration solution. In particular, we first formalize the migration service composition problem into an optimization model. Then, we present an algorithm to determine the optimal composition solution for a given migration task. Finally, using synthetic trace driven simulations, we validate the effectiveness and efficiency of the proposed optimization model and algorithm.

Graph Similarity based Cloud Migration Service Composition Pattern Discovery

“…We take the service composition solutions generated by the approach discussed in (Wang et al, 2013) as the input and then propose an approach to find patterns out of these solutions based on graph similarity analysis. Our approach includes following steps: solution collection, service similarity measurement, graph similarity calculation and pattern identification.…”

“…The similar services in two graphs usually indicate the meaningful candidate node mapping. Beside the service parameters, in the Cloud migration there are three types of context, or service interaction, in the service composition: I/O, dependency and conditional (Wang et al, 2013). The I/O denotes the intermediate state of the component set passed between two services.…”

“…It is an inductive approach but different from the bottom-up approaches. The requests only include a clear initial status and the intent target status without transition information like the sandbox approach in (Wang et al, 2013). In our redefined sandbox, we discover not only the cost effective solution but also other acceptable solutions.…”

“…In response to the huge migration demands, many migration service vendors have emerged in recent years, offering services based on a diverse set of migration techniques. In general, these techniques can be categorized into three major types: image-based migration, application-centric migration, and migration to virtualized containers (Wang et al, 2013). Most of vendors expose their migration ability as web services.…”

“…However, migrating existing on-premises enterprise applications to cloud is a costly, laborintensive, and error-prone activity due to the complexity of the applications, the constraints of the clouds, and the limitations of existing migration techniques provided by migration service vendors (Frey and Hasselbring, 2010). To address these challenges, a recent paper presented an approach to find out the most cost effective solution by composing multiple migration services from different vendors together to complete one migration task (Wang et al, 2013). We call it the sandbox approach because it only provides a one-off solution by calculating without verified precedent.…”