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Escalando una PHP App
con DB Sharding & Amazon Web Services
Matias Paterlini
Tuesday, November 5, 13
Objetivo de la charla
• Contar quien soy y qué hago
• Mostrar orígenes de la arquitectura, infraestructura y
escalabilidad de TFM

• Hablar de DB Sharding
• Hablar de Amazon
• Preguntas
• Cof Cof reclutar Ejem!
Tuesday, November 5, 13
• +11 años de experiencia en PHP.
• 6 años desarrollando aplicaciones sobre Redes
Sociales

• 25 empleados, + de 250 aplicaciones desarrolladas
• + 10K clientes, + 10M Usuarios
• 2 compañías construidas sobre plataformas sociales
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
20.6 M
Audiencia de nuestros
primeros 8 clientes.
Tenemos 250 en simultáneo.
Tuesday, November 5, 13
+300.000
Fans conseguidos con solo un
concurso

Tuesday, November 5, 13
Todos tenemos una
historia con PHP

Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
<?php
echo 'Hello World';
?>

Tuesday, November 5, 13
?
Tuesday, November 5, 13
Apache HTTP Server

Tuesday, November 5, 13
Tuesday, November 5, 13
Free Web Hosting

Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
OOP

Tuesday, November 5, 13
<?
class Caja{
    var $alto;
    var $ancho;
    var $largo;
    var $contenido;
    var $color;
function introduce($cosa){
    $this->contenido = $cosa;
}
function muestra_contenido(){
    echo $this->contenido;
}
}
?>
Tuesday, November 5, 13
Auto-complete
Object class reference

Tuesday, November 5, 13
Tuesday, November 5, 13
FRAMEWORKS

Tuesday, November 5, 13
Tuesday, November 5, 13
2010

Tuesday, November 5, 13
The Fan Machine

Tuesday, November 5, 13
Esto tiene que escalar!

Tuesday, November 5, 13
¿Qué sabíamos de
escalar algo en PHP?

Tuesday, November 5, 13
¿Qué sabíamos de
escalar algo a
MILLONES de usuarios
en PHP?
Tuesday, November 5, 13
0
Tuesday, November 5, 13
CERO
Tuesday, November 5, 13
Qué onda con el
NoSQL?

Tuesday, November 5, 13
Qué onda con el
Sharding?

Tuesday, November 5, 13
Cuales eran nuestros
posibles problemas?

Tuesday, November 5, 13
Escalar Rápido

Tuesday, November 5, 13
Muchos writes

Tuesday, November 5, 13
Mucha variación
en el Tráfico

Tuesday, November 5, 13
MUCHOS cambios en
el modelo de datos

Tuesday, November 5, 13
Mucho Storage

Tuesday, November 5, 13
Todo bajo SSL

Tuesday, November 5, 13
Startup = poco $$

Tuesday, November 5, 13
Como lo
solucionamos???

Tuesday, November 5, 13
Possible solutions...

Tuesday, November 5, 13
Web Server & Storage

Tuesday, November 5, 13
HORIZONTAL
SCALABILITY

Tuesday, November 5, 13
Static File Caching
Web Server 1

Web Server 2

Web Server 3

Data Caching

Database 1

Database 1

(replicated DB)
Tuesday, November 5, 13
Amazon
Azure
GoGrid
Rackspace
Vurbia - SoftLayer
Akamai
Tuesday, November 5, 13
AMAZON

Tuesday, November 5, 13
•
S3
•
EC2 - Web & Memcache
•
CloudWatch
•
CloudFront
•
ELB - SSL termination
•
Route 53

Tuesday, November 5, 13
What about the DB?

Tuesday, November 5, 13
MongoDB
Membase

Hbase

Cassandra

SimpleDB
NoSQL
BigData
CouchDB
Hipertable RaptorDB

Tuesday, November 5, 13
MongoDB
Membase

Hbase

Cassandra

SimpleDB
NoSQL
BigData
CouchDB
Hipertable RaptorDB

Tuesday, November 5, 13
NoSQL = No Trust!

Tuesday, November 5, 13
Y MySQL qué onda?

Tuesday, November 5, 13
Horizontal Scalability

Tuesday, November 5, 13
Master/Slave

Tuesday, November 5, 13
Static File Caching

Web Server
1

(Transaccional,
read-write)
Master
Database

Web Server
2

Web Server
3

Data Caching
Slave
Database

(read)
Tuesday, November 5, 13

Slave
Database

(read)
DB scalling issues...

Tuesday, November 5, 13
Static File Caching

Web Server
1

(Transaccional,
read-write)
Master
Database

Web Server
2

Web Server
3

Data Caching
Slave
Database

(read)
Tuesday, November 5, 13

Slave
Database

(read)
Tuesday, November 5, 13
CPU
Memory
Disk

Tuesday, November 5, 13
Static File Caching

Web Server
1

(Transaccional,
read-write)
Master
Database

Web Server
2

Web Server
3

Data Caching
Slave
Database

(read)
Tuesday, November 5, 13

Slave
Database

(read)
Retraso

Tuesday, November 5, 13
Tuesday, November 5, 13
• MAAAAANY Records - Storage issues

Tuesday, November 5, 13
• MAAAAANY Records - Storage issues
• Caching not enough

Tuesday, November 5, 13
• MAAAAANY Records - Storage issues
• Caching not enough
• Alters lock tables for hours!

Tuesday, November 5, 13
• MAAAAANY Records - Storage issues
• Caching not enough
• Alters lock tables for hours!
• Maintenance Issues

Tuesday, November 5, 13
• MAAAAANY Records - Storage issues
• Caching not enough
• Alters lock tables for hours!
• Maintenance Issues
• Too much response time
Tuesday, November 5, 13
Cluster Computing

Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Table Partitioning

Tuesday, November 5, 13
Tuesday, November 5, 13
THE approach

Tuesday, November 5, 13
The Friendfeed
approach

Tuesday, November 5, 13
MySQL

Tuesday, November 5, 13
Sharded MySQL
databases

Tuesday, November 5, 13
MySQL emulating
NoSQL over Sharded
Databases

Tuesday, November 5, 13
Documents = Entities

Tuesday, November 5, 13
One Table for entities,
many tables for
indexes.

Tuesday, November 5, 13
The Model
index_user
index_promo
entities

index_participant
index_vote
index_fan_conversion

Tuesday, November 5, 13
The Model
index_user
index_promo
entities

index_participant
index_vote
index_fan_conversion

Tuesday, November 5, 13
entities table
added_id
id
body
class
created
updated
deleted

Tuesday, November 5, 13
Entities Table

CREATE TABLE `entities` (
`added_id` int(11) NOT NULL AUTO_INCREMENT,
`id` char(32) NOT NULL DEFAULT '',
`updated` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE
CURRENT_TIMESTAMP,
`deleted` timestamp NULL DEFAULT NULL COMMENT
`body` mediumtext,
`class` varchar(50) DEFAULT NULL,
`created` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
PRIMARY KEY (`added_id`),
UNIQUE KEY `id` (`id`),
KEY `updated` (`updated`),
KEY `class` (`class`),
KEY `created` (`created`)
) ENGINE=InnoDB AUTO_INCREMENT=1692491 DEFAULT CHARSET=utf8 |

Tuesday, November 5, 13
users index table

entity_id
fb_uid

Tuesday, November 5, 13
user index table
CREATE TABLE `index_user` (
`entity_id` char(32) NOT NULL DEFAULT '',
`uid` bigint(20) NOT NULL,
PRIMARY KEY (`entity_id`,`uid`),
UNIQUE KEY `uid` (`uid`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8

Tuesday, November 5, 13
How do we scale it?

Tuesday, November 5, 13
File Caching
Web Server
1

Web Server
2

Web Server
3

Data Caching

DB Server 1

Shard 1 Shard 4 Shard 7 Shard 10
Shard 2 Shard 5 Shard 8 Shard 11
Shard 3 Shard 6 Shard 9 Shard 12
Database Backups
Tuesday, November 5, 13

}

Databases
Static File Caching
Web Server
1

Web Server
2

Web Server
3

Web Server
3

DB
Server
1

DB
Server
2

DB
Server
3

DB
Server
4

Shard 1
Shard 2
Shard 3

Shard 4
Shard 5
Shard 6

Shard 7
Shard 8
Shard 9

Shard 10
Shard 11
Shard 12

Database Backups per Shard
Tuesday, November 5, 13
THE Benefits...

Tuesday, November 5, 13
• Bases de datos más pequeñas son más
fáciles de manejar

• Bases de datos más chicas son más rápidas
• El sharding puede reducir costos

Tuesday, November 5, 13
• Server maintenance per db-server
• Data Maintenance Per db-shard
• NO ALTERS on tables
• Easy recovery and replication with MultiAZ
• Easy scaling
• Easy migration to other No-SQL data
engines

Tuesday, November 5, 13
¿When is DB sharding
Appropiate?

Tuesday, November 5, 13
High transaction Applications
Write-intensive transactions

Tuesday, November 5, 13
Cómo repartimos
entre los shards?

Tuesday, November 5, 13
Driver

Programmatic

Tuesday, November 5, 13

DB
DB Driver
DB
Server
1

DB
Server
2

DB
Server
3

DB
Server
4

Shard 1
Shard 2
Shard 3

Shard 4
Shard 5
Shard 6

Shard 7
Shard 8
Shard 9

Shard 10
Shard 11
Shard 12

memory cache

Driver DB
Tuesday, November 5, 13
DB driver table

shard_id
email

Tuesday, November 5, 13
Progamatic Driver

Tuesday, November 5, 13
Cómo usamos el driver

Fetchear la entidad de un usuario:

Tuesday, November 5, 13
Cómo usamos el driver

Crear o actualizar una promo:

Tuesday, November 5, 13
otra forma de guardar...

Tuesday, November 5, 13
y se utiliza así en un helper:

Tuesday, November 5, 13
Amazon Web Services

Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Tuesday, November 5, 13
Como evolucionamos
en Amazon...

Tuesday, November 5, 13
Un servidor LAMP, S3
DNS externo

Tuesday, November 5, 13
Amazon Linux AMI

Tuesday, November 5, 13
Memcache

Tuesday, November 5, 13
Balancer

Tuesday, November 5, 13
Route 53

Tuesday, November 5, 13
Que aprendimos??

Tuesday, November 5, 13
OJO con las public
AMIs!!!

Tuesday, November 5, 13
Cuando estopeas una
instancia.... CHAN

Tuesday, November 5, 13
PERDES LA IP
ELASTICA

Tuesday, November 5, 13
SE TE CAMBIA LA
DNS PUBLICA

Tuesday, November 5, 13
Clonar es super simple
pero no super rápido

Tuesday, November 5, 13
Tener stopeada una
instancia sale.... casi
nada!!

Tuesday, November 5, 13
DNS...

Tuesday, November 5, 13
SSL Termination

Tuesday, November 5, 13
Límite de certificados
de ssl

Tuesday, November 5, 13
Questions?
Matias Paterlini
matias@thefanmachine.com
Te estamos buscando!!
jobs@thefanmachine.com

Tuesday, November 5, 13

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