Uma visão do caminho que o MySQL está seguindo em sua evolução, apresentando funcionalidades NoSQL (Document Store), replicação ativo-ativo para InnoDB, escalabilidade horizontal de leitura e escrita, ideal para ambientes Cloud.

1. MySQL 5.7
Visão e Roadmap
Airton Lastori
airton.lastori@oracle.com
Fevereiro-2017

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Visão
apresentada no Oracle Open World 2016 em San Francisco, CA
2

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Scale-Out
Ease-of-Use
Out-of-Box
Solution
MySQL

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Read Scale-Out
Async Replication + Auto Failover
Write Scale-Out
Sharding
S1
S2
S3
S4
MySQL Vision – 4 Steps
Timeline
MySQL Document Store
Relational & Document Model
MySQL HA
Out-Of-Box HA

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Read Scale-Out
Async Replication + Auto Failover
Write Scale-Out
Sharding
S1
S2
S3
S4
MySQL Vision – S1
Timeline
MySQL Document Store
Relational & Document Model
MySQL HA
Out-Of-Box HA

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http://db-engines.com/en/ranking_trend (jan-2017)

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http://db-engines.com/en/ranking_categories
183NoSQL
12categorias

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Usa MySQL como NoSQL
eng.uber.com/schemaless-part-one

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Usa MySQL como NoSQL
eng.uber.com/schemaless-part-one

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Exemplo CRUD Document API
MySQL 5.7.12+

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Banco de Dados Híbrido: Confiabilidade + Flexibilidade
MySQL 5.7
Document Store
Suporte JSON
Nova API
BDs Relacionais
Tecnologia madura,
comprovadamente segura.
Transações, queries, JOINs
complexos e conjunto
extenso de ferrametnas
operacionais
NoSQL
Flexibilidade. Escalabilidade
horizontal e facilidade de
uso, schemaless, document
store (JSON)
Aplicações Modernas
Agile + DevOps com
proteção robusta dos
dados
Banco de Dados Híbrido
Melhor dos mundos, sem
trade-offs. Propriedades ACID
& confiabilidade de SGBDR +
flexibilidade de document store

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Exemplo Modelo híbrido: Schema + Schemaless
19
mysql> CREATE DATABASE product_hybrid_test;
mysql> USE product_hybrid_test;
mysql> CREATE TABLE product_info_hybrid (
product_id INT NOT NULL PRIMARY KEY,
description VARCHAR(60) NOT NULL,
price FLOAT NOT NULL,
attributes JSON NOT NULL
);

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Exemplo CRUD modelo híbrido
MySQL 5.7.12+

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CREATE 1
mysql> INSERT INTO product_info_hybrid VALUES (
9,
't-shirt',
20.0,
'{
"size" : "M",
"color" : "red",
"fabric" : "cotton"
}');
Query OK, 1 row affected (0.01 sec)
21

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CREATE 2
mysql> INSERT INTO product_info_hybrid VALUES (
10,
'socks',
15.0,
'{
"size" : "40"
}');
Query OK, 1 row affected (0.01 sec)
22

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READ
mysql> SELECT * FROM product_info_hybrid;
+------------+-------------+-------+---------------------------------------------------+
| product_id | description | price | attributes |
+------------+-------------+-------+---------------------------------------------------+
| 9 | t-shirt | 20 | {"size": "M", "color": "red", "fabric": "cotton"} |
| 10 | socks | 15 | {"size": "40"} |
+------------+-------------+-------+---------------------------------------------------+
2 rows in set (0.00 sec)
23

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READ com filtro
mysql> SELECT * FROM product_info_hybrid WHERE attributes->"$.size"="40";
+------------+-------------+-------+----------------+
| product_id | description | price | attributes |
+------------+-------------+-------+----------------+
| 10 | socks | 15 | {"size": "40"} |
+------------+-------------+-------+----------------+
1 row in set (0.00 sec)
24

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UPDATE
mysql> UPDATE product_info_hybrid SET attributes = '{"size": "42"}' WHERE
product_id=10;
Query OK, 1 row affected (0.00 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql> SELECT * FROM product_info_hybrid;
+------------+-------------+-------+---------------------------------------------------+
| product_id | description | price | attributes |
+------------+-------------+-------+---------------------------------------------------+
| 9 | t-shirt | 20 | {"size": "M", "color": "red", "fabric": "cotton"} |
| 10 | socks | 15 | {"size": "42"} |
+------------+-------------+-------+---------------------------------------------------+
2 rows in set (0.00 sec)
25

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DELETE
mysql> DELETE FROM product_info_hybrid WHERE attributes->"$.size"="42";
Query OK, 1 row affected (0.01 sec)
mysql> SELECT * FROM product_info_hybrid;
+------------+-------------+-------+---------------------------------------------------+
| product_id | description | price | attributes |
+------------+-------------+-------+---------------------------------------------------+
| 9 | t-shirt | 20 | {"size": "M", "color": "red", "fabric": "cotton"} |
+------------+-------------+-------+---------------------------------------------------+
1 row in set (0.00 sec)
26

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Coluna
• Mais integridade no schema,
independente da aplicação
• Schema torna a aplicação mais fácil de
manter no longo prazo, pois há maior
controle nas mudanças
– Espera-se uma maior qualidade dos dados
– Permite aplicação de algumas validações
automáticas sobre os dados
JSON
• Mais liberdade para representar dados
(ex. Campos custom)
• Denormalização natural, registro auto-
contido (ex. facilita escalabilidade
horizontal via sharding)
• Protótipos rápidos, comece armazenar
dados imediatamente
• Menor preocupação na definição de
Tipos de Dados
• Menos dor-de-cabeça para aplicar
mudanças no modelo de dados
Oracle Confidential – Internal/Restricted/Highly Restricted 27
Coluna ou JSON? Você escolhe!

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Read Scale-Out
Async Replication + Auto Failover
Write Scale-Out
Sharding
S1
S2
S3
S4
MySQL Vision – S1
Timeline
MySQL Document Store
Relational & Document Model
MySQL HA
Out-Of-Box HA

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Read Scale-Out
Async Replication + Auto Failover
Write Scale-Out
Sharding
S1
S2
S3
S4
MySQL Vision – S2
Timeline
MySQL Document Store
Relational & Document Model
MySQL HA
Out-Of-Box HA

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MySQL Connector
Application
MySQL Connector
Application
MySQL Shell
MySQL Connector
Application
MySQL Connector
Application
MySQL InnoDB Cluster – Architecture – S2
MySQL
InnoDB
cluster
MySQL Enterprise Monitor
…

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MySQL
InnoDB
cluster
MySQL InnoDB Cluster – Architecture – S2
M
M M
MySQL Connector
Application
MySQL Router
MySQL Connector
Application
MySQL Router
MySQL Shell
HA
Group Replication

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Master
Primário
MySQL Replication
Slave
Réplica

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Falhou!
MySQL Replication
Novo Master

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Sem perda de dados e failover facilitado com replicação Semi-síncrona
Topologias resilientes com Múltiplos Slaves
34
Master Slave 1 (local)
Primeira opção de failover
(sempre mais atualizado)
Slave 2 (remoto)
Segunda opção de failover

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Componentes para Roteamento de conexões
MySQL Connectors
• Funcionalidades
nativas de Failover
ou Load Balancing
MySQL Router(novo )
• Middleware leve
• Roteamento
baseado nas
conexões
• Failover para o
primeiro disponível
ou Load Balancing
MySQL Utilities
• mysqlfailover –
monitora a
replicação, promove
novo master e
redireciona slaves

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Arquitetura: replication + router + mysqlfailover
Router
App
VIP
mysqlfailover
Read-write
Read-only

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DC 1 - ativo
Arquitetura: replication + router + mysqlfailover
Router
App
VIP
mysqlfailover
Read-write
Read-only
DC 2 - standby
Router
App
VIP
mysqlfailover
semisync semisync
async

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MySQL Group Replication
Grupo
3+ primários atuando como 1
Primário Réplica

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High-Availability
1 membro falhou!
Grupo continua disponível

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High-Availability
2 membros falharam
Modo Somente Leitura

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MySQL Group Replication: O que é?
• Replicação multi-master para InnoDB
– permite escrita em qualquer nó do cluster
– recuperação automática (failover, switchover e
failback)
– Inspirado no protocolo PAXOS: consenso da
maioria
• Plug-in disponível no MySQL 5.7.17+ GA
– Suportado em todas plataformas MySQL
• Linux, Windows, Solaris, OSX, FreeBSD
41
M
M M
MySQL Connector
Application
MySQL Router
MySQL Connector
Application
MySQL Router
HA
Group Replication

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MySQL Group Replication: O que fornece?
• Uma camada de banco de dados distribuída, simples de usar e com
alta disponibilidade
– Topologias Ativo-Ativo, escreva em qualquer nó
• Detecção e resolução automática de conflitos
– Reconfiguração automática ao adicionar, remover nós, crashes e falhas
– Distribuído e tolerante a falhas
– Arquitetura shared-nothing , sem necessidade de storage compartilhado
– Compatível com InnoDB
– Modos de operação single-primary ou multi-primary
42

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Master-Slave Replication
Replication vs. Group Replication
Group Replication
Router RouterRouter
App AppApp
VIP
mysqlfailover
Read-write
Read-only

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MySQL Group Replication: Casos de Uso
• Replicação Elástica
– Ambientes que exigem uma infra-estrutura de replicação fluida, onde o número de
servidores tem de crescer ou encolher dinamicamente e com a menor esforço
possível.
• Alternativa a topologias Master-Slave
– Um único servidor Master pode ser um gargalo ou ponto único de falha.
– Escrever em um grupo de nós pode ser mais escalável em certas circunstâncias.
• Sharding com Alta Disponibilidade
– O MySQL Group Replication pode implementar shards altamente disponíveis em um
sistema com escalabilidade horizontal.
44

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Read Scale-Out
Async Replication + Auto Failover
Write Scale-Out
Sharding
S1
S2
S3
S4
MySQL Vision – S3
Timeline
MySQL Document Store
Relational & Document Model
MySQL HA
Out-Of-Box HA

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S1 S2 S3 S4 S…
M
M M
MySQL Connector
Application
MySQL Router
MySQL Connector
Application
MySQL Router
MySQL Shell
HA
MySQL InnoDB Cluster – Architecture - S3 MySQL
InnoDB
cluster
Read-Only Slaves

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Read Scale-Out
Async Replication + Auto Failover
Write Scale-Out
Sharding
S1
S2
S3
S4
MySQL Vision – 4 Steps
Timeline
MySQL Document Store
Relational & Document Model
MySQL HA
Out-Of-Box HA

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S1 S2 S3 S4 S…
M
M M
MySQL Connector
Application
MySQL Router
MySQL Connector
Application
MySQL Router
MySQL Shell
HA
ReplicaSet(Shard1)
S1 S2 S3 S4 S…
M
M M
MySQL Connector
Application
MySQL Router
HA
ReplicaSet(Shard2)
S1 S2 S3
M
M M
H
ReplicaSet(Shard3)
MySQL Connector
Application
MySQL Router
MySQL InnoDB Cluster – Architecture - S4 MySQL
InnoDB
cluster
…

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• Community (GPL)
– Database (InnoDB, MyISAM, MEMORY, etc)
– Cluster (NDB)
• Comercial
– Standard
– Enterprise
– Cluster CGE
– OEM/ISV
• Oracle Cloud
– MySQL Cloud Service
Ofertas MySQL

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Enterprise Edition
Escalabilidade
Autenticação
Firewall
Auditoria
novo TDE
Criptografia
MySQL Enterprise Monitor
Oracle EM for MySQL
Plug-ins
Suporte
Hot
Backup
Monitor &
Workbench

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+
MySQL Enterprise Edition

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• Simples & Automatizado
• Integrado
• Oracle Premier Support
• Enterprise Backup, Monitor, Security
54
Novo! MySQL Cloud Service

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Treinamentos e Certificações
MySQL 5.6 Database
Administrator
MySQL 5.6 Developer
education.oracle.com/mysql

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Obrigado!
airton.lastori@oracle.com