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Daemons, workers e bots com o Aryel Tupinambá - PHP Conference 2016
| Date post: | 06-Jan-2017 |
| Category: |
Software |
| Upload: | aryel-tupinamba |
| View: | 108 times |
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Daemons, workers e bots com o
Aryel Tupinambá - PHP Conference 2016
Sobre o palestrante
Co-fundador e CTO da LQDI DigitalProjetos para empresas como Porto Seguro, Nestlé, Ticket, Editora FTD, Tishman Speyer e Ambev
13 anos trabalhando com PHPDesde a época que o PHPClasses era a onda :)
Aryel Tupinambá
Asynchronous? Event-driven?
Sincronismo vs. Assíncronismo
Request blocking I/O operation (file read) Response1x Thread
Blocking I/O
Sincronismo vs. Assíncronismo
Request blocking I/O operation (file read) Response1x Thread
Request blocking I/O operation (file read) Response1x Thread
Request blocking I/O operation (file read) Response1x Thread
Blocking I/O
Sincronismo vs. Assíncronismo
Request blocking I/O operation (file read) Response
1x Thread
Non-Blocking I/O
Request pool
Sincronismo vs. Assíncronismo
Request blocking I/O operation (file read) Response
1x Thread
Non-Blocking I/O
Request pool
blocking I/O operation (DB read)
blocking I/O operation (file read)
Response
Response
Sincronismo vs. Assíncronismo
Assíncrono != ParaleloAssíncrono = Execução sob demanda
Assíncrono = Menos tempo perdido aguardando retorno
Paralelismo só é possível com uma aplicação multi-thread (como seu browser)Nem NodeJS, nem PHP são multi-thread :/
Sincronismo vs. Assíncronismo
Sincronismo vs. Assíncronismo
O PHP tradicional
Apache + mod_php Nginx + PHP-FPM
O PHP tradicional - mod_php
Apache Create thread Load mod_php.dll Execute ResponseRequest
O PHP tradicional - mod_php
Apache Create thread Load mod_php.dll Execute ResponseRequest
Create thread Load mod_php.dll Execute ResponseRequest
Create thread Load mod_php.dll Execute ResponseRequest
Create thread Load mod_php.dll Execute ResponseRequest
O PHP tradicional - mod_php
Apache Create thread Load mod_php.dll Execute ResponseRequest
Create thread Load mod_php.dll Execute ResponseRequest
Create thread Load mod_php.dll Execute ResponseRequest
Create thread Load mod_php.dll Execute ResponseRequest
4 requests, 4 threads
O PHP tradicional - mod_php
Apache Create thread Load mod_php.dll Execute ResponseRequest
Create thread Load mod_php.dll Execute ResponseRequest
Create thread Load mod_php.dll Execute ResponseRequest
100 requests, 100 threads
Create thread Load mod_php.dll Execute ResponseRequest … x100
O PHP tradicional - PHP-FPM
Nginx PHP-FPM FPM Pool Execute ResponseRequest
FPM Pool
O PHP tradicional - PHP-FPM
Nginx PHP-FPM FPM Pool Execute ResponseRequest
FPM PoolRequest Execute Response
O PHP tradicional - PHP-FPM
Nginx PHP-FPM FPM Pool Execute ResponseRequest
FPM PoolRequest Execute Response
Request Execute Response
Execute ResponseRequest
O PHP tradicional - PHP-FPM
Nginx PHP-FPM FPM Pool Execute ResponseRequest
FPM PoolRequest Execute Response
Request Execute Response
Execute ResponseRequest
4 requests, 2 threads
O PHP tradicional - PHP-FPM
Nginx PHP-FPM FPM Pool Execute ResponseRequest
FPM PoolRequest Execute Response
Request Execute Response
Execute ResponseRequest
… x100
100 requests, n threads (~4 a 8 threads)(n = qtd. configurada de pools, geralmente qtd. de cores na CPU)
O problema C10K10 mil requests concorrentes
A era do async
- Programação reativa a eventos- Microservices- Queuing (enfileiramento)
Code shamelessly copied from Igor's PHPNW 2012 talk :)
I/O blocking
Code shamelessly copied from Igor's PHPNW 2012 talk :)
while(true)
O ReactPHP
- Baseado em streams (stream_select) ou libevent (PECL)- Arquitetura em camadas- Event Loop: enfileiramento para eventos assíncronos
O ReactPHP
EventLoop
Stream
Socket
HttpServer
32
EventLoop
Stream
Socket
HttpServer
33
EventLoop
Stream
Socket
HttpServer
Server
Client
34
EventLoop
Stream
Socket
HttpServer
cat cool_stuff | grep php
cat
stdin
stdout
stderr
grep
stdin
stdout
stderr
35
EventLoop
Stream
Socket
HttpServer
36
EventLoop
Stream
Socket
HttpServer
37
EventLoop
Stream
Socket
HttpServer
Problemas
- Grande maioria das funções do PHP é I/O-blocking- PDO
- File I/O
- cURL
- Como resolver:- Usar alternativas assíncronas (mysqli / mysql-ng)
- Reimplementação de forma assíncrona
- O React faz isso com o React\HttpClient e o React\DNS
- Delegar a resolução para outros workers e aguardar resposta
(modelo Promises)
Quando usar o ReactPHP
- Microservices- Serviços que precisem de throughput alto
- Serviços com chamadas assíncronas
- Serviços em tempo real (chats, notificações, etc)
- Daemons e workers- Execução de jobs enfileirados
- Interface HTTP para sistemas stateless (microcontroladores,
Raspberry PI, drones, porta serial, etc)
- Chat bots- Se encaixa perfeitamente ao modelo assíncrono de
Request/Response
Gostei, quero ver mais!
ReactPHP
http://reactphp.org/
Pushing the limits of PHP with React PHP por Christian Lückhttps://speakerdeck.com/clue/pushing-the-limits-of-php-with-react-php
How I (ab)used php with the help of ReactPHP por Stijn Vannieuwenhuysehttps://speakerdeck.com/stijnvnh/how-i-ab-used-php-with-the-help-of-reactphp
Obrigado!Dúvidas?
Telegram: @DfKimeraE-mail / Hangouts: [email protected]: http://facebook.com/aryel.tupinambaTwitter: http://twitter.com/DfKimeraLinkedIn: http://linkedin.com/in/aryeltupinamba
Slides da palestra: http://slideshare.net/aryeltupinamba
http://lqdi.net
