DevOps patterns to scale web applications using cloud services

This article was accepted to publication at SPLASH 2013Wavefront Experience track.

Scaling a web applications can be easy for simple CRUD software running when you use Platform as a Service Clouds (PaaS). But if you need to deploy a complex software, with many components and a lot users, you will need have a mix of cloud services in PaaS, SaaS and IaaS layers. You will also need knowledge in architecture patterns to make all these software components communicate accordingly.

In this article, we share our experience of using cloud services to scale a web application. We show usage examples of load balancing, session sharing, e-mail delivery, asynchronous processing, logs processing, monitoring, continuous deployment, realtime user monitoring (RUM). These are a mixture of development and system operations (DevOps) that improved our application availability, scalability and performance.
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SPLASH (antiga OOPSLA)

OOPSLA

Em 1985, um grupo de 4 pioneiros em programação orientada a objetos decidiu organizar nos EUA uma conferência sobre programação de sistemas orientados a objetos. No grupo estavam Adele Goldberg, Tom Love, David Smith, and Allen Wirfs-Brock, e a conferência foi chamada de OOPSLA (Object-Oriented Programming, Systems, Languages, and Applications). A primeira OOPSLA aconteceu no Hotel Marriott, em Portland, Oregon, em novembro de 1986. Cerca de 600 pessoas participaram, 50 artigos foram apresentados e os participantes ouviram sobre Smalltalk, Lisp, Flavors, CommonLoops, Emerald, Trellis/Owl, Mach, Prolog, ABCL/1, prototypes, e programação concorrente e distribuída de pessoas como Danny Bobrow, Gregor Kiczales, Rick Rashid, Andrew Black, Dave Ungar, Henry Lieberman, Ralph Johnson, Dan Ingalls, Ward Cunningham, Kent Beck, Ivar Jacobson e Bertrand Meyer.

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