Oficina de escalabilidade para aplicações web dada na Campus Party 5 (2012)

1. Escalar
aplicações
PHP
Augusto Pascutti
Wednesday, February 8, 2012

2. @augustohp
Wednesday, February 8, 2012

3. HTTP
=
Stateless
(Share
Nothing)
Wednesday, February 8, 2012

4. Escalar?
Wednesday, February 8, 2012

5. !=
Velocidade
Wednesday, February 8, 2012

6. ~=
quanBdade
Wednesday, February 8, 2012

7. Escalabilidade
=
Arquitetura
Wednesday, February 8, 2012

8. Nosso
ambiente
Wednesday, February 8, 2012

9. Wednesday, February 8, 2012

10. Level
1
Wednesday, February 8, 2012

11. Internet
Wednesday, February 8, 2012

12. Índices
Wednesday, February 8, 2012

13. Um
índice
muito
grande
é
INÚTIL.
Índices
Wednesday, February 8, 2012

14. CREATE TABLE compras (
id INT AUTO_INCREMENT,
data DATE NOT NULL,
valor FLOAT NOT NULL,
PRIMARY KEY (id)
INDEX data_compra(data)
) Índices
Wednesday, February 8, 2012

15. SELECT *
FROM compras
WHERE
TO_DAYS(data)-TO_DAYS(data) <= 7
Índices
Wednesday, February 8, 2012

16. SELECT *
FROM compras
WHERE
data <= CURRENT_DATE() - INTERVAL 7 DAY
Índices
Wednesday, February 8, 2012

17. SELECT *
FROM compras
WHERE
data <= ‘2012-01-07’ - INTERVAL 7 DAY
Índices
Wednesday, February 8, 2012

18. ParBcionamento
VerBcal
Wednesday, February 8, 2012

19. CREATE TABLE usuarios (
id INT AUTO_INCREMENT,
login VARCHAR(50) NOT NULL,
nascimento DATE NOT NULL
) ENGINE=InnoDB
PARTITION BY RANGE (id) (
PARTITION a VALUES LESS THAN (1000),
PARTITION b VALUES LESS THAN (2000),
PARTITION z VALUES LESS THAN MAXVALUE
);
ParBcionamento
VerBcal
Wednesday, February 8, 2012

20. CREATE TABLE usuarios (
id INT AUTO_INCREMENT,
login VARCHAR(50) NOT NULL,
nascimento DATE NOT NULL,
pais INT NOT NULL
) ENGINE=InnoDB
PARTITION BY LIST (pais) (
PARTITION america VALUES IN (1,2,3),
PARTITION europa VALUES IN (4,5,6),
...
); ParBcionamento
VerBcal
Wednesday, February 8, 2012

21. CREATE TABLE usuarios (
id INT AUTO_INCREMENT,
login VARCHAR(50) NOT NULL,
nascimento DATE NOT NULL,
grupo INT NOT NULL
) ENGINE=InnoDB
PARTITION BY HASH (grupo)
PARTITIONS 4;
ParBcionamento
VerBcal
Wednesday, February 8, 2012

22. CREATE TABLE usuarios (
id INT AUTO_INCREMENT,
login VARCHAR(50) NOT NULL,
nascimento DATE NOT NULL,
grupo INT NOT NULL
) ENGINE=InnoDB
PARTITION BY HASH (grupo) INT
PARTITIONS 4;
ParBcionamento
VerBcal
Wednesday, February 8, 2012

23. CREATE TABLE usuarios (
id INT AUTO_INCREMENT,
login VARCHAR(50) NOT NULL,
nascimento DATE NOT NULL,
grupo INT NOT NULL
) ENGINE=InnoDB
PARTITION BY HASH (MONTH(nascimento))
PARTITIONS 12;
ParBcionamento
VerBcal
Wednesday, February 8, 2012

24. CREATE TABLE usuarios (
id INT AUTO_INCREMENT,
login VARCHAR(50) NOT NULL,
nascimento DATE NOT NULL,
grupo INT NOT NULL
) ENGINE=InnoDB
PARTITION BY KEY (login)
PARTITIONS 4;
ParBcionamento
VerBcal
Wednesday, February 8, 2012

25. CREATE TABLE usuarios (
id INT AUTO_INCREMENT,
login VARCHAR(50) NOT NULL,
nascimento DATE NOT NULL,
grupo INT NOT NULL
) ENGINE=InnoDB
PARTITION BY KEY (login) =D
PARTITIONS 4;
ParBcionamento
VerBcal
Wednesday, February 8, 2012

26. Level
2
Wednesday, February 8, 2012

27. Gravação Leitura
Replicação
Wednesday, February 8, 2012

28. Level
3
Wednesday, February 8, 2012

29. Gravação Leitura
Replicação
Wednesday, February 8, 2012

30. Gravação Leitura
Replicação
MySql
Proxy
Wednesday, February 8, 2012

31. Wednesday, February 8, 2012

32. Level
1
Wednesday, February 8, 2012

33. Internet
Wednesday, February 8, 2012

34. MulB
Processing
Modules
Wednesday, February 8, 2012

35. Internet
Wednesday, February 8, 2012

36. Level
2
Wednesday, February 8, 2012

37. Wednesday, February 8, 2012

38. •mod_proxy
•mod_proxy_hWp
•mod_proxy_balancer
Wednesday, February 8, 2012

39. •mod_proxy
•mod_proxy_hWp
•mod_proxy_balancer
ProxyPass / balancer://vila-chaves
<Proxy balancer://vila-chaves>
BalancerMember http://chaves.test.org
BalancerMember http://kiko.test.org
BalancerMember http://nhonho.test.org
</Proxy>
Wednesday, February 8, 2012

40. SESSION
Wednesday, February 8, 2012

41. ProxyPass / balancer://vila-chaves
stickysession=PHPSESSIONID
<Proxy balancer://vila-chaves>
BalancerMember http://chaves.test.org
BalancerMember http://kiko.test.org
BalancerMember http://nhonho.test.org
</Proxy>
SESSION
Wednesday, February 8, 2012

42. Level
3
Wednesday, February 8, 2012

43. Gravação Leitura
Wednesday, February 8, 2012

44. •mod_rewrite
Gravação Leitura
Wednesday, February 8, 2012

45. •mod_rewrite
RewriteEngine On
RewriteCond ${REQUEST_METHOD} ^(POST|PUT|DELETE)$
RewriteRule ^/(.*)$ escrita.test.org$1 [P]
Gravação Leitura
RewriteCond ${REQUEST_METHOD} ^(GET|HEAD|OPTIONS)$
RewriteRule ^/(.*)$ leitura.test.org$1 [P]
Wednesday, February 8, 2012

46. •mod_rewrite
RewriteEngine On
RewriteCond ${REQUEST_METHOD} ^(POST|PUT|DELETE)$
RewriteRule ^/(.*)$ balancer://escrita$1 [P]
Gravação Leitura
RewriteCond ${REQUEST_METHOD} ^(GET|HEAD|OPTIONS)$
RewriteRule ^/(.*)$ balancer://leitura$1 [P]
Wednesday, February 8, 2012

47. Wednesday, February 8, 2012

48. Banco
de
Dados
Wednesday, February 8, 2012

49. Front
Controller
Wednesday, February 8, 2012

50. SESSION
Wednesday, February 8, 2012

51. CREATE TABLE `session` (
`id` char(32),
`data` text,
PRIMARY KEY (`id`)
);
SESSION
Wednesday, February 8, 2012

52. session_set_save_handler
("open","close","read",
"write","destroy","gc");
SESSION
Wednesday, February 8, 2012

53. function open($path,$name)
{
return true;
}
function close() {
return true;
} SESSION
Wednesday, February 8, 2012

54. function read($id) {
$sql = "SELECT data
FROM session
WHERE id = '{$id}'";
$data = array(); // query, fetchAll
return $data;
}
SESSION
Wednesday, February 8, 2012

55. function write($id, $data) {
$data = serialize($data);
$sql = "INSERT INTO session (id, data)
VALUES ('{$id}', '{$data}')";
// Insert
return true;
}
SESSION
Wednesday, February 8, 2012

56. function destroy($id) {
$sql = "DELETE FROM session
WHERE id = '{$id}'";
// delete
return $sql;
}
SESSION
Wednesday, February 8, 2012

57. function gc($maxlifetime) {
// =D
return true;
}
SESSION
Wednesday, February 8, 2012

58. @alganet
Wednesday, February 8, 2012

59. slideshare.net/augustopascutti
Wednesday, February 8, 2012