Docker build a master-slave MySQL Cluster, based GTID

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MySQL to build separate read and write from the main cluster, there is not used binlogthe way, using the GTIDway of
the sour My Github https://github.com/hellxz/mysql-cluster-docker.git

Master-slave directory structure

.
├── bin
│   ├── add-slave-account-to-master.sh
│   ├── reset-slave.sh
│   ├── slave-replias-master-start.sh
│   └── stop-replicas.sh
├── config
│   ├── master.cnf
│   └── slave.cnf
├── docker-compose.yml
├── .env
├── master-data
├── show-slave-status.sh
└── slave-data

Directory / File Description:

• bin/add-slave-account-to-master.sh : Add a backup account script Master node
• config/master.cnf : MySQL Master node configuration file
• config/slave.cnf : MySQL Slave node configuration file
• docker-compose.yml : Construction docker-compose the main configuration file from the node data directory mount
• master-data : The master node position data, of course, linked to the production environment to another location
• slave-data : Data from the node positions, of course, linked to the production environment to another location
• bin/slave-replias-master-start.sh : Add the primary node from node backup account information and turn on the backup script
• bin/stop-replicas.sh : Script closed from node backup
• bin/reset-slave.sh : Reset state from node backup, restoration can not be established because the main cluster after cluster reboot problem
• .env : The environment variable file
• bin/show-slave-status.sh: View from the connection status of the main script

Build process:

1. Modify the .envfile

# default environment arguments for docker-compose.yml
# set master data dir
MASTER_DATA=./master-data
# set slave data dir
SLAVE_DATA=./slave-data
# set master & slave root password
MASTER_PASSWD=P@ssw0rd
# set slave root passwor
SLAVE_PASSWD=P@ssw0rd
# set replicas mysql account name
REPL_NAME=replicas
# set replicas mysql password
REPL_PASSWD=replicasPasswd

• MASTER_DATAMaster node directory data, to modify the position corresponding to the host, SLAVE_DATA versa.

• MASTER_PASSWDThe master node is the root password, the script in the bin directory will read the value of the variable in order to access the database
• SLAVE_PASSWDFrom the node is the root password, the script will read
• REPL_NAMEIs the name of the account you want to create the master node, node accessed from this account

• REPL_PASSWDIt is the primary node to create REPL_NAMEthe corresponding password

2. Start two nodes, performdocker-compose up -d

Examination has started

3. Go to the bin directory, execute scripts

cd bin
./add-slave-account-to-master.sh #读取mysql密码，为主节点添加备份账户
./slave-replias-master-start.sh #从节点使用备份账户连接主节点，开启备份

4. Check the cluster status, run in the bin directory./show-slave-status.sh

This set up is complete.

Failure recovery

1. Restart MySQL Cluster can not recover from node to resolve normal.

Bin directory under the Executive reset-slave.sh, after attempts to connect to the database, the problem has been resolved.

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