项目环境：
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192.168.8.30 mycat
192.168.8.31 node1
192.168.8.32 node2
192.168.8.33 node3
三个节点MySQL均为单实例
一、配置schema.xml
select user()
select user()
select user()
二、配置server.xml
mysql
mycatdb
三、创建测试库
node1
create database testdb01;
create database testdb02;
create database testdb03;
node2
create database testdb13;
create database testdb14;
create database testdb15;
node3
create database testdb25;
create database testdb26;
create database testdb27;
四、启动mycat
/usr/local/mycat/bin/mycat start
查看mycat日志
STATUS | wrapper | 2018/11/22 10:58:17 | --> Wrapper Started as Daemon
STATUS | wrapper | 2018/11/22 10:58:18 | Launching a JVM...
INFO | jvm 1 | 2018/11/22 10:58:18 | OpenJDK 64-Bit Server VM warning: ignoring option MaxPermSize=64M; support was removed in 8.0
INFO | jvm 1 | 2018/11/22 10:58:20 | Wrapper (Version 3.2.3) http://wrapper.tanukisoftware.org
INFO | jvm 1 | 2018/11/22 10:58:20 | Copyright 1999-2006 Tanuki Software, Inc. All Rights Reserved.
INFO | jvm 1 | 2018/11/22 10:58:20 |
INFO | jvm 1 | 2018/11/22 10:58:24 | MyCAT Server startup successfully. see logs in logs/mycat.log
五、登录MySQL查看全局表
mysql -uroot -pmysql -P8066 -h292.168.8.30
mysql> use mycatdb
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> show tables;
+-------------------+
| Tables in mycatdb |
+-------------------+
| user01 |
| user02 |
+-------------------+
2 rows in set (0.01 sec)
mysql> drop table user02;
ERROR 1105 (HY000): Unknown table 'testdb11.user02'
mysql> select * from user02;
ERROR 1146 (HY000): Table 'testdb01.user02' doesn't exist
mysql> drop table if exists user02;
Query OK, 0 rows affected, 1 warning (0.40 sec
建表user02并插入三条记录
mysql> create table user02(
-> id INT(10) NOT NULL AUTO_INCREMENT,
-> name varchar(30),
-> PRIMARY KEY ( id )
-> );
Query OK, 0 rows affected (1.74 sec)
mysql> insert into user02(name) values('steven');
Query OK, 1 row affected (0.29 sec)
mysql> insert into user02(name) values('steven');
Query OK, 1 row affected (0.33 sec)
mysql> insert into user02(name) values('steven');
Query OK, 1 row affected (0.31 sec)
六、数据验证
node1
mysql> select * from testdb01.user02;
+----+--------+
| id | name |
+----+--------+
| 1 | steven |
| 2 | steven |
| 3 | steven |
+----+--------+
3 rows in set (0.00 sec)
mysql> select * from testdb05.user02;
+----+--------+
| id | name |
+----+--------+
| 1 | steven |
| 2 | steven |
| 3 | steven |
+----+--------+
3 rows in set (0.01 sec)
mysql> select * from testdb12.user02;
+----+--------+
| id | name |
+----+--------+
| 1 | steven |
| 2 | steven |
| 3 | steven |
+----+--------+
3 rows in set (0.00 sec)
node2
mysql> select * from testdb16.user02;
+----+--------+
| id | name |
+----+--------+
| 1 | steven |
| 2 | steven |
| 3 | steven |
+----+--------+
3 rows in set (0.00 sec)
mysql> select * from testdb19.user02;
+----+--------+
| id | name |
+----+--------+
| 1 | steven |
| 2 | steven |
| 3 | steven |
+----+--------+
3 rows in set (0.00 sec)
mysql> select * from testdb22.user02;
+----+--------+
| id | name |
+----+--------+
| 1 | steven |
| 2 | steven |
| 3 | steven |
+----+--------+
3 rows in set (0.00 sec)
node3
mysql> select * from testdb25.user02;
+----+--------+
| id | name |
+----+--------+
| 1 | steven |
| 2 | steven |
| 3 | steven |
+----+--------+
3 rows in set (0.00 sec)
mysql> select * from testdb30.user02;
+----+--------+
| id | name |
+----+--------+
| 1 | steven |
| 2 | steven |
| 3 | steven |
+----+--------+
3 rows in set (0.00 sec)
mysql> select * from testdb33.user02;
+----+--------+
| id | name |
+----+--------+
| 1 | steven |
| 2 | steven |
| 3 | steven |
+----+--------+
可以看到每个node的每个database存的数据都一模一样，全局表验证完毕。
网页标题：MyCat分库分表--实战03--全局表
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