Article Directory
Environmental preparation
| Node name | ip address |
|---|---|
| node1 | 192.168.130.20 |
| node2 | 192.168.130.19 |
| node2 | 192.168.130.21 |
/etc/hosts（node1、node2、node3）
192.168.130.20 hello001
192.168.130.19 hello002
192.168.130.21 hello003
Configuration
Create data directories (node1, node2, node3)
mkdir -p /root/mysql-cluster/data && chmod 777 /root/mysql-cluster/data
The default listening port of the pxc node:
3306: The port number for external services of the database
4444: Request SST, which works when a new node joins
4567: Port for communication between group members
4568: IST is transmitted, the node is offline, and works when restarting join
start up
node1
docker rm -f mysql-pxc-node1
docker run -d --network=host --name=mysql-pxc-node1 \
-e MYSQL_ROOT_PASSWORD=hello \
-e CLUSTER_NAME=helloPXC \
-e XTRABACKUP_PASSWORD=hello123456 \
-e TZ=Asia/Shanghai \
-v /root/mysql-cluster/data:/var/lib/mysql \
percona/percona-xtradb-cluster:5.7.31
node2
docker rm -f mysql-pxc-node2
docker run -d --network=host --name=mysql-pxc-node2 \
-e MYSQL_ROOT_PASSWORD=hello \
-e CLUSTER_NAME=helloPXC \
-e CLUSTER_JOIN=192.168.130.20 \
-e XTRABACKUP_PASSWORD=hello123456 \
-e TZ=Asia/Shanghai \
-v /root/mysql-cluster/data:/var/lib/mysql \
percona/percona-xtradb-cluster:5.7.31
node3
docker rm -f mysql-pxc-node3
docker run -d --network=host --name=mysql-pxc-node3 \
-e MYSQL_ROOT_PASSWORD=hello \
-e CLUSTER_NAME=helloPXC \
-e CLUSTER_JOIN=192.168.130.20 \
-e XTRABACKUP_PASSWORD=hello123456 \
-e TZ=Asia/Shanghai \
-v /root/mysql-cluster/data:/var/lib/mysql \
percona/percona-xtradb-cluster:5.7.31
View cluster status
docker exec -it mysql-pxc-node1 /usr/bin/mysql -uroot -phello
mysql> show status like 'wsrep%';
....
wsrep_incoming_addresses
...
wsrep_incoming_addresses whether all node addresses have been added