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这篇文章主要介绍“MyCat 分库分表实例教程”，在日常操作中，相信很多人在 MyCat 分库分表实例教程问题上存在疑惑，丸趣 TV 小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答”MyCat 分库分表实例教程”的疑惑有所帮助！接下来，请跟着丸趣 TV 小编一起来学习吧！
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、创建测试库
node1
create database testdb01;
create database testdb02;
create database testdb03;
create database testdb04;
create database testdb05;
create database testdb06;
create database testdb07;
create database testdb08;
create database testdb09;
create database testdb10;
create database testdb11;
create database testdb12;node2
create database testdb13;
create database testdb14;
create database testdb15;
create database testdb16;
create database testdb17;
create database testdb18;
create database testdb19;
create database testdb20;
create database testdb21;
create database testdb22;
create database testdb23;
create database testdb24;node3
create database testdb25;
create database testdb26;
create database testdb27;
create database testdb28;
create database testdb29;
create database testdb30;
create database testdb31;
create database testdb32;
create database testdb33;
create database testdb34;
create database testdb35;
create database testdb36;二、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= user06 dataNode= dn$1-36 rule= sharding-by-month-adddate /table
/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= dn36 dataHost= node3 database= testdb36 /
!-- 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三、配置 rule.xml
tableRule name= sharding-by-month-adddate
rule
columns adddate /columns
algorithm partbymonth /algorithm
/rule
/tableRule
function name= partbymonth > 四、启动 mycat
/usr/local/mycat/bin/mycat start
查看 mycat 日志
STATUS | wrapper | 2018/11/22 19:52:42 | -- Wrapper Started as Daemon
STATUS | wrapper | 2018/11/22 19:52:42 | Launching a JVM...
INFO | jvm 1 | 2018/11/22 19:52:42 | OpenJDK 64-Bit Server VM warning: ignoring option MaxPermSize=64M; support was removed in 8.0
INFO | jvm 1 | 2018/11/22 19:52:44 | Wrapper (Version 3.2.3) http://wrapper.tanukisoftware.org
INFO | jvm 1 | 2018/11/22 19:52:44 | Copyright 1999-2006 Tanuki Software, Inc. All Rights Reserved.
INFO | jvm 1 | 2018/11/22 19:52:44 |
INFO | jvm 1 | 2018/11/22 19:52:49 | MyCAT Server startup successfully. see logs in logs/mycat.log五、登录 MySQL 查看逻辑表
mysql -uroot -pmysql -P8066 -h292.168.8.30mysql show databases;
+----------+
| DATABASE |
+----------+
| mycatdb |
+----------+
1 row in set (0.03 sec)
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 |
+-------------------+
| user04 |
| user05 |
| user06 |
+-------------------+
3 rows in set (0.01 sec)
mysql select * from user06;
ERROR 1105 (HY000): Table testdb36.user06 doesn t exist
mysql drop table if exists user06;
Query OK, 0 rows affected, 1 warning (0.38 sec)
mysql create table user06(
- id int not null auto_increment,
- name varchar(64),
- adddate datetime,
- primary key(id)
- );
Query OK, 0 rows affected (1.73 sec)六、插入测试数据
insert into user06(id,name,adddate) values(1, steven , 2016-05-09 12:32:12
insert into user06(id,name,adddate) values(2, steven , 2016-09-09 12:32:12
insert into user06(id,name,adddate) values(3, steven , 2016-12-09 12:32:12
insert into user06(id,name,adddate) values(4, steven , 2017-05-09 12:32:12
insert into user06(id,name,adddate) values(5, steven , 2017-06-09 12:32:12
insert into user06(id,name,adddate) values(6, steven , 2017-07-09 12:32:12
insert into user06(id,name,adddate) values(7, steven , 2018-05-09 12:32:12
insert into user06(id,name,adddate) values(8, steven , 2018-05-09 12:32:12
insert into user06(id,name,adddate) values(9, steven , 2018-08-09 12:32:12
insert into user06(id,name,adddate) values(10, steven , 2018-12-09 12:32:12七、验证数据
node1
mysql select * from testdb01.user06;
Empty set (0.00 sec)
mysql select * from testdb02.user06;
Empty set (0.00 sec)
mysql select * from testdb03.user06;
Empty set (0.00 sec)
mysql select * from testdb04.user06;
Empty set (0.01 sec)
mysql select * from testdb05.user06;
+----+--------+---------------------+
| id | name | adddate |
+----+--------+---------------------+
| 1 | steven | 2016-05-09 12:32:12 |
+----+--------+---------------------+
1 row in set (0.00 sec)
mysql select * from testdb06.user06;
Empty set (0.01 sec)
mysql select * from testdb07.user06;
Empty set (0.01 sec)
mysql select * from testdb08.user06;
Empty set (0.01 sec)
mysql select * from testdb09.user06;
+----+--------+---------------------+
| id | name | adddate |
+----+--------+---------------------+
| 2 | steven | 2016-09-09 12:32:12 |
+----+--------+---------------------+
1 row in set (0.00 sec)
mysql select * from testdb10.user06;
Empty set (0.00 sec)
mysql select * from testdb11.user06;
Empty set (0.00 sec)
mysql select * from testdb12.user06;
+----+--------+---------------------+
| id | name | adddate |
+----+--------+---------------------+
| 3 | steven | 2016-12-09 12:32:12 |
+----+--------+---------------------+
1 row in set (0.00 sec)node2
mysql select * from testdb13.user06;
Empty set (0.00 sec)
mysql select * from testdb14.user06;
Empty set (0.00 sec)
mysql select * from testdb15.user06;
Empty set (0.00 sec)
mysql select * from testdb16.user06;
Empty set (0.00 sec)
mysql select * from testdb17.user06;
+----+--------+---------------------+
| id | name | adddate |
+----+--------+---------------------+
| 4 | steven | 2017-05-09 12:32:12 |
+----+--------+---------------------+
1 row in set (0.00 sec)
mysql select * from testdb18.user06;
+----+--------+---------------------+
| id | name | adddate |
+----+--------+---------------------+
| 5 | steven | 2017-06-09 12:32:12 |
+----+--------+---------------------+
1 row in set (0.01 sec)
mysql select * from testdb19.user06;
+----+--------+---------------------+
| id | name | adddate |
+----+--------+---------------------+
| 6 | steven | 2017-07-09 12:32:12 |
+----+--------+---------------------+
1 row in set (0.00 sec)
mysql select * from testdb20.user06;
Empty set (0.01 sec)
mysql select * from testdb21.user06;
Empty set (0.00 sec)
mysql select * from testdb22.user06;
Empty set (0.00 sec)
mysql select * from testdb23.user06;
Empty set (0.00 sec)
mysql select * from testdb24.user06;
Empty set (0.01 sec)node3
mysql select * from testdb25.user06;
Empty set (0.00 sec)
mysql select * from testdb26.user06;
Empty set (0.00 sec)
mysql select * from testdb27.user06;
Empty set (0.00 sec)
mysql select * from testdb28.user06;
Empty set (0.01 sec)
mysql select * from testdb29.user06;
+----+--------+---------------------+
| id | name | adddate |
+----+--------+---------------------+
| 7 | steven | 2018-05-09 12:32:12 |
| 8 | steven | 2018-05-09 12:32:12 |
+----+--------+---------------------+
2 rows in set (0.00 sec)
mysql select * from testdb30.user06;
Empty set (0.01 sec)
mysql select * from testdb31.user06;
Empty set (0.01 sec)
mysql select * from testdb32.user06;
+----+--------+---------------------+
| id | name | adddate |
+----+--------+---------------------+
| 9 | steven | 2018-08-09 12:32:12 |
+----+--------+---------------------+
1 row in set (0.00 sec)
mysql select * from testdb33.user06;
Empty set (0.00 sec)
mysql select * from testdb34.user06;
Empty set (0.01 sec)
mysql select * from testdb35.user06;
Empty set (0.01 sec)
mysql select * from testdb36.user06;
+----+--------+---------------------+
| id | name | adddate |
+----+--------+---------------------+
| 10 | steven | 2018-12-09 12:32:12 |
+----+--------+---------------------+
1 row in set (0.00 sec)到此，关于“MyCat 分库分表实例教程”的学习就结束了，希望能够解决大家的疑惑。理论与实践的搭配能更好的帮助大家学习，快去试试吧！若想继续学习更多相关知识，请继续关注丸趣 TV 网站，丸趣 TV 小编会继续努力为大家带来更多实用的文章！
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