shahedbhuiyan / mysql-replication-poc

ProxySql, MySQL Replication, Spring Boot

ProxySQL, MySQL Clustering, Spring Boot

Configuration

• ProxySQL [SQL Aware LB]

  • :6032 (admin, user: admin2, pass: pass2)
  • :6033 (MySQL endpoint, user: root, pass: password)

• MySQL replication

  • master x 1
  • slave x 2
  • user: root, pass: password

Getting Started

docker-compose up -d

                      Name                                     Command               State                       Ports
-------------------------------------------------------------------------------------------------------------------------------------------
proxysql-mysql-replication-proxysql                 proxysql -f -D /var/lib/pr ...   Up      0.0.0.0:6032->6032/tcp, 0.0.0.0:6033->6033/tcp
proxysql-mysql-replication-slave1                   docker-entrypoint.sh mysqld      Up      0.0.0.0:3307->3306/tcp, 33060/tcp
proxysql-mysql-replication-slave2                   docker-entrypoint.sh mysqld      Up      0.0.0.0:3308->3306/tcp, 33060/tcp

Check status

• MySQL master

  $ docker-compose exec mysql-master sh -c "export MYSQL_PWD=password; mysql -u root sbtest -e 'show master status\G'"
  

• MySQL slave

  If slave fails to connect master, remove {master,slave}/data and restart master, then restart slave.

  $ docker-compose exec mysql-slave1 sh -c "export MYSQL_PWD=password; mysql -u root sbtest -e 'show slave status\G'"
  

• ProxySQL

  $ mysql -h 0.0.0.0 -P 6032 -u admin2 -p -e 'select * from mysql_servers'
  Enter password:
  +--------------+--------------+------+-----------+--------+--------+-------------+-----------------+---------------------+---------+----------------+---------+
  | hostgroup_id | hostname     | port | gtid_port | status | weight | compression | max_connections | max_replication_lag | use_ssl | max_latency_ms | comment |
  +--------------+--------------+------+-----------+--------+--------+-------------+-----------------+---------------------+---------+----------------+---------+
  | 10           | mysql-master | 3306 | 0         | ONLINE | 1      | 0           | 100             | 5                   | 0       | 0              |         |
  | 20           | mysql-slave1 | 3306 | 0         | ONLINE | 1      | 0           | 100             | 5                   | 0       | 0              |         |
  | 20           | mysql-slave2 | 3306 | 0         | ONLINE | 1      | 0           | 100             | 5                   | 0       | 0              |         |
  +--------------+--------------+------+-----------+--------+--------+-------------+-----------------+---------------------+---------+----------------+---------+