基于容器搭建percona-xtradb-cluster集群

作者：【吴业亮】

博客：https://wuyeliang.blog.csdn.net/

相关代码：

https://hub.docker.com/r/percona/percona-xtradb-cluster/

创建网络

创建容器网络

docker network create pxc-network

Bootstrap集群，创建第一个节点

docker run -d \
  -e MYSQL_ROOT_PASSWORD=root \
  -e CLUSTER_NAME=cluster1 \
  --name=node1 \
  --net=pxc-network \
  percona/percona-xtradb-cluster:5.7

加入第二个节点

docker run -d \
  -e MYSQL_ROOT_PASSWORD=root \
  -e CLUSTER_NAME=cluster1 \
  -e CLUSTER_JOIN=node1 \
  --name=node2 \
  --net=pxc-network \
  percona/percona-xtradb-cluster:5.7

加入第三个节点

docker run -d \
  -e MYSQL_ROOT_PASSWORD=root \
  -e CLUSTER_NAME=cluster1 \
  -e CLUSTER_JOIN=node1 \
  --name=node3 \
  --net=pxc-network \
  percona/percona-xtradb-cluster:5.7

验证

docker exec -it node1 /usr/bin/mysql -uroot -proot
mysql@node1>
View the wsrep status variables:

mysql@node1> show status like 'wsrep%';
+------------------------------+-------------------------------------------------+
| Variable_name                | Value                                           |
+------------------------------+-------------------------------------------------+
| wsrep_local_state_uuid       | 625318e2-9e1c-11e7-9d07-aee70d98d8ac            |
...
| wsrep_local_state_comment    | Synced                                          |
...
| wsrep_incoming_addresses     | 172.18.0.2:3306,172.18.0.3:3306,172.18.0.4:3306 |
...
| wsrep_cluster_conf_id        | 3                                               |
| wsrep_cluster_size           | 3                                               |
| wsrep_cluster_state_uuid     | 625318e2-9e1c-11e7-9d07-aee70d98d8ac            |
| wsrep_cluster_status         | Primary                                         |
| wsrep_connected              | ON                                              |
...
| wsrep_ready                  | ON                                              |
+------------------------------+-------------------------------------------------+
59 rows in set (0.02 sec)