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="user07" dataNode="dn$1-36" rule="sharding-by-hour-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-hour-adddate"> <rule> <columns>adddate</columns> <algorithm>sharding-by-hour</algorithm> </rule> </tableRule> <function name="sharding-by-hour" class="io.mycat.route.function.LatestMonthPartion"> <property name="splitOneDay">24</property> </function>
<property name="splitOneDay">24</property>每天24份
四、启动mycat
/usr/local/mycat/bin/mycat start
查看mycat日志
STATUS | wrapper | 2018/11/23 12:54:18 | --> Wrapper Started as Daemon STATUS | wrapper | 2018/11/23 12:54:19 | Launching a JVM... INFO | jvm 1 | 2018/11/23 12:54:19 | OpenJDK 64-Bit Server VM warning: ignoring option MaxPermSize=64M; support was removed in 8.0 INFO | jvm 1 | 2018/11/23 12:54:23 | Wrapper (Version 3.2.3) http://wrapper.tanukisoftware.org INFO | jvm 1 | 2018/11/23 12:54:23 | Copyright 1999-2006 Tanuki Software, Inc. All Rights Reserved. INFO | jvm 1 | 2018/11/23 12:54:23 | INFO | jvm 1 | 2018/11/23 12:54:28 | MyCAT Server startup successfully. see logs in logs/mycat.log
五、登录MySQL查看逻辑表
mysql -uroot -pmysql -P8066 -h292.168.8.30
mysql> show databases; +----------+ | DATABASE | +----------+ | mycatdb | +----------+ 1 row in set (0.02 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 | | user07 | +-------------------+ 4 rows in set (0.01 sec) mysql> drop table if exists user07; Query OK, 0 rows affected, 1 warning (0.38 sec) mysql> create table user07( -> id int not null, -> name varchar(64), -> adddate varchar(10) -> );
六、插入测试数据
insert into user07(id,name,adddate) values(1,'steven','2018110100'); insert into user07(id,name,adddate) values(1,'steven','2018110101'); insert into user07(id,name,adddate) values(1,'steven','2018110102'); insert into user07(id,name,adddate) values(1,'steven','2018110103'); insert into user07(id,name,adddate) values(1,'steven','2018110104'); insert into user07(id,name,adddate) values(1,'steven','2018110105'); insert into user07(id,name,adddate) values(1,'steven','2018110106'); insert into user07(id,name,adddate) values(1,'steven','2018110107'); insert into user07(id,name,adddate) values(1,'steven','2018110108'); insert into user07(id,name,adddate) values(1,'steven','2018110109'); insert into user07(id,name,adddate) values(1,'steven','2018110110'); insert into user07(id,name,adddate) values(1,'steven','2018110111'); insert into user07(id,name,adddate) values(1,'steven','2018110112'); insert into user07(id,name,adddate) values(1,'steven','2018110113'); insert into user07(id,name,adddate) values(1,'steven','2018110114'); insert into user07(id,name,adddate) values(1,'steven','2018110115'); insert into user07(id,name,adddate) values(1,'steven','2018110116'); insert into user07(id,name,adddate) values(1,'steven','2018110117'); insert into user07(id,name,adddate) values(1,'steven','2018110118'); insert into user07(id,name,adddate) values(1,'steven','2018110119'); insert into user07(id,name,adddate) values(1,'steven','2018110120'); insert into user07(id,name,adddate) values(1,'steven','2018110121'); insert into user07(id,name,adddate) values(1,'steven','2018110122'); insert into user07(id,name,adddate) values(1,'steven','2018110123'); insert into user07(id,name,adddate) values(1,'steven','2018110200'); insert into user07(id,name,adddate) values(1,'steven','2018110201'); insert into user07(id,name,adddate) values(1,'steven','2018110202'); insert into user07(id,name,adddate) values(1,'steven','2018110203'); insert into user07(id,name,adddate) values(1,'steven','2018110204'); insert into user07(id,name,adddate) values(1,'steven','2018110205'); insert into user07(id,name,adddate) values(1,'steven','2018110206'); insert into user07(id,name,adddate) values(1,'steven','2018110207'); insert into user07(id,name,adddate) values(1,'steven','2018110208'); insert into user07(id,name,adddate) values(1,'steven','2018110209'); insert into user07(id,name,adddate) values(1,'steven','2018110210'); insert into user07(id,name,adddate) values(1,'steven','2018110211');
执行两次，每条数据插入两份
七、验证数据
node1
mysql> select * from testdb01.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110100 | | 1 | steven | 2018110100 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb02.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110101 | | 1 | steven | 2018110101 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb03.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110102 | | 1 | steven | 2018110102 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb04.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110103 | | 1 | steven | 2018110103 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb05.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110104 | | 1 | steven | 2018110104 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb06.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110105 | | 1 | steven | 2018110105 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb07.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110106 | | 1 | steven | 2018110106 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb08.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110107 | | 1 | steven | 2018110107 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb09.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110108 | | 1 | steven | 2018110108 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb10.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110109 | | 1 | steven | 2018110109 | +----+--------+------------+ 2 rows in set (0.01 sec) mysql> select * from testdb11.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110110 | | 1 | steven | 2018110110 | +----+--------+------------+ 2 rows in set (0.02 sec) mysql> select * from testdb12.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110111 | | 1 | steven | 2018110111 | +----+--------+------------+ 2 rows in set (0.01 sec)
node2
mysql> select * from testdb13.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110112 | | 1 | steven | 2018110112 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb14.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110113 | | 1 | steven | 2018110113 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb15.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110114 | | 1 | steven | 2018110114 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb16.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110115 | | 1 | steven | 2018110115 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb17.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110116 | | 1 | steven | 2018110116 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb18.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110117 | | 1 | steven | 2018110117 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb19.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110118 | | 1 | steven | 2018110118 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb20.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110119 | | 1 | steven | 2018110119 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb21.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110120 | | 1 | steven | 2018110120 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb22.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110121 | | 1 | steven | 2018110121 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb23.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110122 | | 1 | steven | 2018110122 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb24.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110123 | | 1 | steven | 2018110123 | +----+--------+------------+ 2 rows in set (0.00 sec)
node3
mysql> select * from testdb25.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110200 | | 1 | steven | 2018110200 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb26.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110201 | | 1 | steven | 2018110201 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb27.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110202 | | 1 | steven | 2018110202 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb28.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110203 | | 1 | steven | 2018110203 | +----+--------+------------+ 2 rows in set (0.02 sec) mysql> select * from testdb29.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110204 | | 1 | steven | 2018110204 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb30.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110205 | | 1 | steven | 2018110205 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb31.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110206 | | 1 | steven | 2018110206 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb32.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110207 | | 1 | steven | 2018110207 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb33.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110208 | | 1 | steven | 2018110208 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb34.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110209 | | 1 | steven | 2018110209 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb35.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110210 | | 1 | steven | 2018110210 | +----+--------+------------+ 2 rows in set (0.00 sec) mysql> select * from testdb36.user07; +----+--------+------------+ | id | name | adddate | +----+--------+------------+ | 1 | steven | 2018110211 | | 1 | steven | 2018110211 | +----+--------+------------+ 2 rows in set (0.00 sec)
72条记录，按照时间先后顺序分布在36个分片中，验证完毕。
注意：rule.xml中配置的一天分成24份，一份是1小时，我们共36个分片，所以插入的数据只能限制在每月月初的36小时之内，如2018100100-2018100211
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