深入浅出MySQL(九)一看就懂的基于MYCAT的数据库分表分库案例

[root@idea-centos mycat]# wget http://dl.mycat.io/Mycat-server-1.4-beta-20150604171601-linux.tar.gz
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tar -zxvf Mycat-server-1.4-beta-20150604171601-linux.tar.gz
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vim /etc/profile
export MYCAT_HOME=/opt/mycat/mycat
export PATH=$PATH:$MYCAT_HOME/bin 
sh $MYCAT_HOME/bin/mycat start  设置mycat开机自动启动
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create database db01 if not exists db01;
    use db01;
     CREATE TABLE users ( 
        id INT NOT NULL AUTO_INCREMENT, 
        name varchar(50) NOT NULL default '', 
        indate DATETIME NOT NULL default '0000-00-00 00:00:00', 
        PRIMARY KEY (id) 
    )AUTO_INCREMENT= 1 ENGINE=InnoDB DEFAULT CHARSET=utf8; 
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create database db02 if not exists db02;
use db02;
 CREATE TABLE item ( 
    id INT NOT NULL AUTO_INCREMENT, 
    value INT NOT NULL default 0, 
    indate DATETIME NOT NULL default '0000-00-00 00:00:00', 
    PRIMARY KEY (id) 
)AUTO_INCREMENT= 1 ENGINE=InnoDB DEFAULT CHARSET=utf8;
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create database db03 if not exists db03;
    use db03;
    CREATE TABLE item ( 
        id INT NOT NULL AUTO_INCREMENT, 
        value INT NOT NULL default 0, 
        indate DATETIME NOT NULL default '0000-00-00 00:00:00', 
        PRIMARY KEY (id) 
    )AUTO_INCREMENT= 1 ENGINE=InnoDB DEFAULT CHARSET=utf8;
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<?xml version="1.0" encoding="UTF-8"?> 
<!DOCTYPE mycat:server SYSTEM "server.dtd"> 
<mycat:server xmlns:mycat="http://io.mycat/"> 
        <system> 
            <!--  
                <property name="processors">32</property> 
                <property name="processorExecutor">32</property>  
                <property name="bindIp">0.0.0.0</property>  
                <property name="frontWriteQueueSize">4096</property> 
                <property name="idleTimeout">300000</property> 
                <property name="mutiNodePatchSize">100</property> 
            --> 
                <property name="defaultSqlParser">druidparser</property> 
                <property name="mutiNodeLimitType">1</property> 
                <property name="serverPort">8066</property> 
                <property name="managerPort">9066</property>  
        </system> 
        <!-- 任意设置登陆 mycat 的用户名,密码,数据库  --> 
        <user name="test"> 
                <property name="password">test</property> 
                <property name="schemas">TESTDB</property> 
        </user> 
        <user name="user"> 
                <property name="password">user</property> 
                <property name="schemas">TESTDB</property> 
                <property name="readOnly">true</property> 
        </user> 
        <!--  
        <quarantine>  
           <whitehost> 
              <host host="127.0.0.1" user="mycat"/> 
              <host host="127.0.0.2" user="mycat"/> 
           </whitehost> 
       <blacklist check="false"></blacklist> 
        </quarantine> 
        --> 
</mycat:server> 
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<tableRule name="auto-sharding-long">
    <rule>
        <columns>id</columns>
        <algorithm>rang-long</algorithm>
    </rule>
</tableRule>
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<function name="rang-long"
    class="org.opencloudb.route.function.AutoPartitionByLong">
    <property name="mapFile">autopartition-long.txt</property>
</function>
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<?xml version="1.0" encoding="UTF-8"?>
        <!-- - - Licensed under the Apache License, Version 2.0 (the "License");
            - you may not use this file except in compliance with the License. - You
            may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0
            - - Unless required by applicable law or agreed to in writing, software -
            distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT
            WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the
            License for the specific language governing permissions and - limitations
            under the License. -->
        <!DOCTYPE mycat:rule SYSTEM "rule.dtd">
        <mycat:rule xmlns:mycat="http://io.mycat/">
            <tableRule name="role1">
                <rule>
                    <columns>id</columns>
                    <algorithm>mod-long</algorithm>
                </rule>
            </tableRule>
            <function name="mod-long" class="io.mycat.route.function.PartitionByMod">
                <!-- how many data nodes -->
                <property name="count">2</property>
            </function>
        </mycat:rule>
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<?xml version="1.0"?> 
<!DOCTYPE mycat:schema SYSTEM "schema.dtd"> 
<mycat:schema xmlns:mycat="http://io.mycat/"> 
    <!-- 设置表的存储方式.schema name="TESTDB" 与 server.xml中的 TESTDB 设置一致  --> 
    <schema name="TESTDB" checkSQLschema="false" sqlMaxLimit="100"> 
        <table name="users" primaryKey="id"  dataNode="node_db01" /> 
        <table name="item" primaryKey="id" dataNode="node_db02,node_db03" rule="role1" /> 
    </schema> 
    <!-- 设置dataNode 对应的数据库,及 mycat 连接的地址dataHost --> 
    <dataNode name="node_db01" dataHost="dataHost01" database="db01" /> 
    <dataNode name="node_db02" dataHost="dataHost01" database="db02" /> 
    <dataNode name="node_db03" dataHost="dataHost01" database="db03" /> 
    <!-- mycat 逻辑主机dataHost对应的物理主机.其中也设置对应的mysql登陆信息 ，注意writeHost 标签要闭合！--> 
    <dataHost name="dataHost01" maxCon="1000" minCon="10" balance="0" writeType="0" dbType="mysql" dbDriver="native"> 
            <heartbeat>select user()</heartbeat> 
            <writeHost host="server1" url="192.168.43.138:3306" user="root" password="123456"/> 
    </dataHost> 
</mycat:schema>
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