项目环境： 192.168.8.30 mycat 192.168.8.31 node1 192.168.8.32 node2 1
项目环境：
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
<?xml version="1.0"?>
<!DOCTYPE mycat:schema SYSTEM "schema.dtd">
<mycat:schema xmlns:mycat="Http://io.mycat/">
<schema name="mycatdb" checksqlschema="false" sqlMaxLimit="100">
<table name="user02" primaryKey="id" type="global" dataNode="dn$1-35" />
<table name="user01" dataNode="dn$1-35" rule="sharding-by-intfile-mycatdb-kk_user" />
</schema>
<!-- <dataNode name="dn1$0-743" dataHost="localhost1" database="db$0-743"
/> -->
<dataNode name="dn1" dataHost="node1" database="testdb01" />
<dataNode name="dn2" dataHost="node1" database="testdb02" />
<dataNode name="dn3" dataHost="node1" database="testdb03" />
<dataNode name="dn4" dataHost="node1" database="testdb04" />
<dataNode name="dn5" dataHost="node1" database="testdb05" />
<dataNode name="dn6" dataHost="node1" database="testdb06" />
<dataNode name="dn7" dataHost="node1" database="testdb07" />
<dataNode name="dn8" dataHost="node1" database="testdb08" />
<dataNode name="dn9" dataHost="node1" database="testdb09" />
<dataNode name="dn10" dataHost="node1" database="testdb10" />
<dataNode name="dn11" dataHost="node1" database="testdb11" />
<dataNode name="dn12" dataHost="node1" database="testdb12" />
<dataNode name="dn13" dataHost="node2" database="testdb13" />
<dataNode name="dn14" dataHost="node2" database="testdb14" />
<dataNode name="dn15" dataHost="node2" database="testdb15" />
<dataNode name="dn16" dataHost="node2" database="testdb16" />
<dataNode name="dn17" dataHost="node2" database="testdb17" />
<dataNode name="dn18" dataHost="node2" database="testdb18" />
<dataNode name="dn19" dataHost="node2" database="testdb19" />
<dataNode name="dn20" dataHost="node2" database="testdb20" />
<dataNode name="dn21" dataHost="node2" database="testdb21" />
<dataNode name="dn22" dataHost="node2" database="testdb22" />
<dataNode name="dn23" dataHost="node2" database="testdb23" />
<dataNode name="dn24" dataHost="node2" database="testdb24" />
<dataNode name="dn25" dataHost="node3" database="testdb25" />
<dataNode name="dn26" dataHost="node3" database="testdb26" />
<dataNode name="dn27" dataHost="node3" database="testdb27" />
<dataNode name="dn28" dataHost="node3" database="testdb28" />
<dataNode name="dn29" dataHost="node3" database="testdb29" />
<dataNode name="dn30" dataHost="node3" database="testdb30" />
<dataNode name="dn31" dataHost="node3" database="testdb31" />
<dataNode name="dn32" dataHost="node3" database="testdb32" />
<dataNode name="dn33" dataHost="node3" database="testdb33" />
<dataNode name="dn34" dataHost="node3" database="testdb34" />
<dataNode name="dn35" dataHost="node3" database="testdb35" />
<!--<dataNode name="dn4" dataHost="sequoiadb1" database="SAMPLE" />
<dataNode name="jdbc_dn1" dataHost="jdbchost" database="db1" />
<dataNode name="jdbc_dn2" dataHost="jdbchost" database="db2" />
<dataNode name="jdbc_dn3" dataHost="jdbchost" database="db3" /> -->
<dataHost name="node1" maxCon="1000" minCon="10" balance="1"
writeType="0" dbType="mysql" dbDriver="native" switchType="1" slaveThreshold="100">
<heartbeat>select user()</heartbeat>
<!-- can have multi write hosts -->
<writeHost host="192.168.8.31" url="192.168.8.31:3306" user="root" passWord="mysql"></writeHost>
</dataHost>
<dataHost name="node2" maxCon="1000" minCon="10" balance="1"
writeType="0" dbType="mysql" dbDriver="native" switchType="1" slaveThreshold="100">
<heartbeat>select user()</heartbeat>
<!-- can have multi write hosts -->
<writeHost host="192.168.8.32" url="192.168.8.32:3306" user="root" password="mysql"></writeHost>
</dataHost>
<dataHost name="node3" maxCon="1000" minCon="10" balance="1"
writeType="0" dbType="mysql" dbDriver="native" switchType="1" slaveThreshold="100">
<heartbeat>select user()</heartbeat>
<!-- can have multi write hosts -->
<writeHost host="192.168.8.33" url="192.168.8.33:3306" user="root" password="mysql"></writeHost>
</dataHost>
</mycat:schema>
二、配置server.xml
<user name="root" defaultAccount="true">
<property name="password">mysql</property>
<property name="schemas">mycatdb</property>
</user>
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。
--结束END--
本文标题: MyCat分库分表--实战03--全局表
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