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Escalando sua aplicação para milhões de visitas.

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Who am I? ● Software Developer ● Product Owner ● Leroy Merlin (Laravel) ● Keep learning http://zizaco.net Luiz Fernando / Zizaco

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"Investing in scaling before it is needed is generally not a smart business proposition; however, some forethought into the design can save substantial time and resources in the future." - Kate Matsudaira

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Medição 1.

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Medição

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Teste de carga smartmeter.io

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Cache 2.

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O que é Cache? Guardar algo temporáriamente para uso posterior.

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Por que usar Cache? Encurtar o tempo de acesso, reduzir a latência e melhorar o input/output. Caching é usado para melhorar a performance de uma aplicação.

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Laravel Request Lifecycle HTTP:// WebServer HTTP Kernel Middlewares index.php autoload Routes Controller External Services File System Databases Models / Services View

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Laravel Request Lifecycle HTTP:// WebServer HTTP Kernel Middlewares index.php autoload Routes Controller External Services File System Databases Models / Services Cache View

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APC & Zend OpCache (OpCode Cache)

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Laravel Request Lifecycle HTTP:// WebServer HTTP Kernel Middlewares index.php autoload Routes Controller External Services File System Databases Models / Services Cache View Cache

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Laravel's Route Caching "Using the route cache will drastically decrease the amount of time it takes to register all of your application's routes. In some cases, your route registration may even be up to 100x faster" php artisan route:cache

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Laravel Request Lifecycle HTTP:// WebServer HTTP Kernel Middlewares index.php autoload Routes Controller External Services File System Databases Models / Services Cache View Cache Cache

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Caching Middleware (actionCaching) HTTP Kernel Middlewares Routes Controller Database View

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Caching Middleware (actionCaching) HTTP Kernel Middlewares Routes Controller Database View HTTP Kernel Middlewares Routes Controller Database View

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Caching Middleware (actionCaching) HTTP Kernel Middlewares Routes Controller Database View HTTP Kernel Middlewares Routes Controller Database View Hard work

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Caching Middleware (actionCaching)

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Caching Middleware (actionCaching)

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Laravel Request Lifecycle HTTP:// WebServer HTTP Kernel Middlewares index.php autoload Routes Controller External Services File System Databases Models / Services Cache View Cache Cache Cache

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View Caching (fragment Caching) View Object View Object Render Render View Object Render ... @include @include

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View Caching (fragment Caching) View Object View Object Render Render View Object Render ... @include @include View Object View Object Render Render View Object @cached_include @include Render ...

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View Caching (fragment Caching) View Object View Object Render Render View Object Render ... @include @include View Object View Object Render Render View Object @include Render ... @cached_include

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View Caching (fragment Caching)

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View Caching (fragment Caching)

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Laravel Request Lifecycle HTTP:// WebServer HTTP Kernel Middlewares index.php autoload Routes Controller External Services File System Databases Models / Services Cache View Cache Cache Cache Cache

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General Caching

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General Caching

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HTTP:// WebServer Cache Laravel Request Lifecycle HTTP Kernel Middlewares index.php autoload Routes Controller External Services File System Databases Models / Services Cache View Cache Cache Cache Cache

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Internet Server(s) Application Database Reverse Proxy Internet Server(s) Proxy Application Database

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Reverse Proxy "A reverse proxy can reduce load on its origin servers by caching content [...] also known as web acceleration. Proxy caches of this sort can often satisfy a considerable number of website requests, greatly reducing the load on the origin server(s)."

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Reverse Proxy (ou CDN) Varnish Cache

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HTTP:// WebServer Cache Laravel Request Lifecycle HTTP Kernel Middlewares index.php autoload Routes Controller External Services File System Databases Models / Services Cache View Cache Cache Cache Cache Cache

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Standard HTTP Caching

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Laravel Request Lifecycle HTTP:// WebServer HTTP Kernel Middlewares index.php autoload Routes Controller External Services File System Databases Models / Services View

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Laravel Request Lifecycle HTTP:// WebServer HTTP Kernel Middlewares index.php autoload Routes Controller External Services File System Databases Models / Services Cache Cache Cache Cache View Cache Cache Cache

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Concorrência 3.

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"Twelve-factor processes are stateless and share-nothing. Never assume that anything on disk or cached in memory will be available on a future request or job."

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Storing files (Object Storage / S3 / NAS)

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Storing logs (Monolog Handlers)

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Sticky sessions should never be used or relied upon. Session state data is a good candidate for a datastore that offers time-expiration, such as Memcached or Redis.

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Centralizing sessions SESSION_DRIVER=redis

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Store config in environment variables (often shortened to env vars or env). Env vars are easy to change between deploys without changing any code

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"Build your application to be as generic and stateless as possible. If you must use a singleton, enable a voting protocol [...]" - Kyle Brown

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Preventing singleton

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Preventing singleton

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Preventing singleton

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"Lock" distribuído "In computer science, a lock is a synchronization mechanism [...] A lock is designed to enforce a mutual exclusion concurrency control policy." - Wikipedia

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"Lock" distribuído rápido, transacional e consistente

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Preventing singleton

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Topologia 4.

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DevOps: Developers partner with system administrators and operations staff to assure that software runs with a minimum of problems. - Neil Garnichaud

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Uma tarde "boa" Uma semana

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5410 requests / minuto ...

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5410 requests / minuto 90 requests / segundo 324 mil req. / hora ...

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5410 requests / minuto 90 requests / segundo 324 mil req. / hora 7.7 milhões req. / dia 233 milhões req. / mês

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Indivíduos e interações 5.

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Conway’s Law: The architecture of the system will reflect the organization that produced it. Parts of the organization that don’t talk together will likely produce software that doesn’t talk together.

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Fontes Scalable Web Architecture and Distributed Systems - Kate Matsudaira http://www.aosabook.org/en/distsys.html Top 9 rules for cloud applications - Kyle Brown and Mike Capern http://www.ibm.com/developerworks/websphere/techjournal/1404_brown/1404_brown.html The Twelve Factors App - Adam Wiggins https://12factor.net/ 5 Common Server Setups For Your Web Application - Mitchell Anicas https://www.digitalocean.com/community/tutorials/5-common-server-setups-for-your-web-application Estratégias de Caching - Zizaco https://www.youtube.com/watch?v=z8qkUITz5rU Scaling Your Web App 101: Lessons in Architecture Under Load - Hartley Brody https://blog.hartleybrody.com/scale-load/ Distributed locks with Redis - Redis.io http://redis.io/topics/distlock What Exactly is DevOps? - Neil Garnichaud http://www.drdobbs.com/architecture-and-design/what-exactly-is-devops/240009147

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Trabalhe conosco (: Back-end Front-end UX [email protected] assunto: [vaga]