Dynamic Software Update from Development to Production

Tesone, Pablo; Polito, Guillermo; Bouraqadi, Noury; Ducasse, Stephane; Fabresse, Luc

Document type :

Compte-rendu et recension critique d'ouvrage

DOI :

10.5381/jot.2018.17.1.a2

Title :

Dynamic Software Update from Development to Production

Author(s) :

Tesone, Pablo [Auteur]
Centre for Digital Systems [CERI SN - IMT Nord Europe]
Polito, Guillermo [Auteur]

Centre de Recherche en Informatique, Signal et Automatique de Lille - UMR 9189 [CRIStAL]
Bouraqadi, Noury [Auteur]
Centre for Digital Systems [CERI SN - IMT Nord Europe]
Ducasse, Stephane [Auteur]

Analyses and Languages Constructs for Object-Oriented Application Evolution [RMOD]
Fabresse, Luc [Auteur]
Centre for Digital Systems [CERI SN - IMT Nord Europe]

Journal title :

The Journal of Object Technology

Pages :

1-36

Publisher :

Chair of Software Engineering

Publication date :

2018-11

ISSN :

1660-1769

English keyword(s) :

live environments
atomic
object-oriented
dynamic software update

HAL domain(s) :

Informatique [cs]/Langage de programmation [cs.PL]

English abstract : [en]

Dynamic Software Update (DSU) solutions update applications while they are executing. These solutions are typically used in production to minimize application downtime, or in integrated development environments to provide ...
Show more >Dynamic Software Update (DSU) solutions update applications while they are executing. These solutions are typically used in production to minimize application downtime, or in integrated development environments to provide live programming support. Each of these scenarios presents different challenges, forcing existing solutions to be designed with only one of these use cases in mind. For example, DSUs for live programming typically do not implement safe point detection or instance migration, while production DSUs require manual generation of patches and lack IDE integration. Also, these solutions have limited ability to update themselves or the language core libraries, and some of them present execution penalties outside the update window. We propose a DSU (gDSU) that works for both live programming and production environments. Our solution implements safe update point detection using call stack manipulation and a reusable instance migration mechanism to minimize manual intervention in patch generation. Moreover, it also offers updates of core language libraries and the update mechanism itself. This is achieved by the incremental copy of the modified objects and an atomic commit operation. We show that our solution does not affect the global performance of the application and it presents only a run-time penalty during the update window. Our solution is able to apply an update impacting 100,000 instances in 1 second. In this 1 second, only during 250 milliseconds the application is not responsive. The rest of the time the application runs normally while gDSU is looking for the safe update point. The update only requires to copy the elements that are modified.Show less >

Language :

Anglais

Popular science :

Non

Collections :

Centre de Recherche en Informatique, Signal et Automatique de Lille (CRIStAL) - UMR 9189

Source :

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