CentOS上安裝MyCat-MySQL

時間 2019-11-19

原文原文鏈接

一、安裝JDK，要求JDK7以上。html

二、下載MyCat，地址。java

三、解壓Mycat-server-1.6-RELEASE-20161028204710-linux.tar.gz，到usr/local/Mycat目錄下。node

四、添加用戶Mycat。mysql

[root@localhost Desktop]# useradd Mycat
[root@localhost Desktop]# passwd Mycat
Changing password for user Mycat.
New password: 123456
BAD PASSWORD: it is too simplistic/systematic
BAD PASSWORD: is too simple
Retype new password: 123456
passwd: all authentication tokens updated successfully.

五、分配Mycat用戶的文件權限和用戶組。linux

[root@localhost Desktop]# chown -R Mycat.Mycat /usr/local/Mycat

六、添加環境變量。sql

　　編輯/etc/profile，在文件最後追加以下內容。mongodb

export MYCAT_HOME=/usr/local/Mycat
export JAVA_HOME=/usr/java/jdk1.8.0_71

　　執行 source /etc/profile 命令，使環境變量生效。數據庫

[root@localhost Desktop]# source /etc/profile
[root@localhost Desktop]# echo $JAVA_HOME
/usr/java/jdk1.8.0_71
[root@localhost Desktop]# echo $MYCAT_HOME
/usr/local/Mycat

七、檢查並提早準備MySQL環境。安裝參考express

192.168.208.143,root:123456,mycat_db1/mycat_db2.apache

192.168.208.145,root:123456,mycat_db3.

表結構SQL：

SET FOREIGN_KEY_CHECKS=0;

-- ----------------------------
-- Table structure for company
-- ----------------------------
DROP TABLE IF EXISTS `company`;
CREATE TABLE `company` (
  `id` int(11) NOT NULL,
  `NAME` varchar(100) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

-- ----------------------------
-- Table structure for customer
-- ----------------------------
DROP TABLE IF EXISTS `customer`;
CREATE TABLE `customer` (
  `id` int(11) NOT NULL,
  `NAME` varchar(100) DEFAULT NULL,
  `company_id` int(11) NOT NULL,
  `sharding_id` int(11) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

-- ----------------------------
-- Table structure for employee
-- ----------------------------
DROP TABLE IF EXISTS `employee`;
CREATE TABLE `employee` (
  `id` int(11) NOT NULL,
  `name` varchar(100) DEFAULT NULL,
  `sharding_id` int(11) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

-- ----------------------------
-- Table structure for goods
-- ----------------------------
DROP TABLE IF EXISTS `goods`;
CREATE TABLE `goods` (
  `id` int(11) NOT NULL,
  `NAME` varchar(200) DEFAULT NULL,
  `good_type` tinyint(4) DEFAULT NULL,
  `good_img_url` varchar(200) DEFAULT NULL,
  `good_created` date DEFAULT NULL,
  `good_desc` varchar(500) DEFAULT NULL,
  `price` double DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

-- ----------------------------
-- Table structure for hotnews
-- ----------------------------
DROP TABLE IF EXISTS `hotnews`;
CREATE TABLE `hotnews` (
  `id` int(11) NOT NULL,
  `title` varchar(400) DEFAULT NULL,
  `created_time` datetime DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

-- ----------------------------
-- Table structure for orders
-- ----------------------------
DROP TABLE IF EXISTS `orders`;
CREATE TABLE `orders` (
  `id` int(11) NOT NULL,
  `customer_id` int(11) NOT NULL,
  `sataus` int(11) DEFAULT NULL,
  `note` varchar(100) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

-- ----------------------------
-- Table structure for travelrecord
-- ----------------------------
DROP TABLE IF EXISTS `travelrecord`;
CREATE TABLE `travelrecord` (
  `id` int(11) NOT NULL,
  `user_id` varchar(100) DEFAULT NULL,
  `traveldate` date DEFAULT NULL,
  `fee` decimal(10,0) DEFAULT NULL,
  `days` int(11) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

八、配置MyCat的/usr/local/Mycat/conf/server.xml。

<?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:server SYSTEM "server.dtd">
<mycat:server xmlns:mycat="http://io.mycat/">
    <system>
    <property name="useSqlStat">0</property>  <!-- 1爲開啓實時統計、0爲關閉 -->
    <property name="useGlobleTableCheck">0</property>  <!-- 1爲開啓全加班一致性檢測、0爲關閉 -->

        <property name="sequnceHandlerType">2</property>
      <!--  <property name="useCompression">1</property>--> <!--1爲開啓mysql壓縮協議-->
        <!--  <property name="fakeMySQLVersion">5.6.20</property>--> <!--設置模擬的MySQL版本號-->
    <!-- <property name="processorBufferChunk">40960</property> -->
    <!-- 
    <property name="processors">1</property> 
    <property name="processorExecutor">32</property> 
     -->
        <!--默認爲type 0: DirectByteBufferPool | type 1 ByteBufferArena-->
        <property name="processorBufferPoolType">0</property>
        <!--默認是65535 64K 用於sql解析時最大文本長度 -->
        <!--<property name="maxStringLiteralLength">65535</property>-->
        <!--<property name="sequnceHandlerType">0</property>-->
        <!--<property name="backSocketNoDelay">1</property>-->
        <!--<property name="frontSocketNoDelay">1</property>-->
        <!--<property name="processorExecutor">16</property>-->
        <!--
            <property name="serverPort">8066</property> <property name="managerPort">9066</property> 
            <property name="idleTimeout">300000</property> <property name="bindIp">0.0.0.0</property> 
            <property name="frontWriteQueueSize">4096</property> <property name="processors">32</property> -->
        <!--分佈式事務開關，0爲不過濾分佈式事務，1爲過濾分佈式事務（若是分佈式事務內只涉及全局表，則不過濾），2爲不過濾分佈式事務,可是記錄分佈式事務日誌-->
        <property name="handleDistributedTransactions">0</property>
        
            <!--
            off heap for merge/order/group/limit      1開啓   0關閉
        -->
        <property name="useOffHeapForMerge">1</property>

        <!--
            單位爲m
        -->
        <property name="memoryPageSize">1m</property>

        <!--
            單位爲k
        -->
        <property name="spillsFileBufferSize">1k</property>

        <property name="useStreamOutput">0</property>

        <!--
            單位爲m
        -->
        <property name="systemReserveMemorySize">384m</property>


        <!--是否採用zookeeper協調切換  -->
        <property name="useZKSwitch">true</property>


    </system>
    
    <!-- 全局SQL防火牆設置 -->
    <!-- 
    <firewall> 
       <whitehost>
          <host host="127.0.0.1" user="mycat"/>
          <host host="127.0.0.2" user="mycat"/>
       </whitehost>
       <blacklist check="false">
       </blacklist>
    </firewall>
    -->
    
    <user name="root">
        <property name="password">123456</property>
        <property name="schemas">TESTDB</property>
        
        <!-- 表級 DML 權限設置 -->
        <!--         
        <privileges check="false">
            <schema name="TESTDB" dml="0110" >
                <table name="tb01" dml="0000"></table>
                <table name="tb02" dml="1111"></table>
            </schema>
        </privileges>        
         -->
    </user>

    <user name="user">
        <property name="password">user</property>
        <property name="schemas">TESTDB</property>
        <property name="readOnly">true</property>
    </user>

</mycat:server>

九、配置MyCat的/usr/local/Mycat/conf/rule.xml。

<?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="rule1">
        <rule>
            <columns>id</columns>
            <algorithm>func1</algorithm>
        </rule>
    </tableRule>

    <tableRule name="rule2">
        <rule>
            <columns>user_id</columns>
            <algorithm>func1</algorithm>
        </rule>
    </tableRule>

    <tableRule name="sharding-by-intfile">
        <rule>
            <columns>sharding_id</columns>
            <algorithm>hash-int</algorithm>
        </rule>
    </tableRule>
    <tableRule name="auto-sharding-long">
        <rule>
            <columns>id</columns>
            <algorithm>rang-long</algorithm>
        </rule>
    </tableRule>
    <tableRule name="mod-long">
        <rule>
            <columns>id</columns>
            <algorithm>mod-long</algorithm>
        </rule>
    </tableRule>
    <tableRule name="sharding-by-murmur">
        <rule>
            <columns>id</columns>
            <algorithm>murmur</algorithm>
        </rule>
    </tableRule>
    <tableRule name="crc32slot">
        <rule>
            <columns>id</columns>
            <algorithm>crc32slot</algorithm>
        </rule>
    </tableRule>
    <tableRule name="sharding-by-month">
        <rule>
            <columns>create_time</columns>
            <algorithm>partbymonth</algorithm>
        </rule>
    </tableRule>
    <tableRule name="latest-month-calldate">
        <rule>
            <columns>calldate</columns>
            <algorithm>latestMonth</algorithm>
        </rule>
    </tableRule>
    
    <tableRule name="auto-sharding-rang-mod">
        <rule>
            <columns>id</columns>
            <algorithm>rang-mod</algorithm>
        </rule>
    </tableRule>
    
    <tableRule name="jch">
        <rule>
            <columns>id</columns>
            <algorithm>jump-consistent-hash</algorithm>
        </rule>
    </tableRule>

    <function name="murmur"
        class="io.mycat.route.function.PartitionByMurmurHash">
        <property name="seed">0</property><!-- 默認是0 -->
        <property name="count">2</property><!-- 要分片的數據庫節點數量，必須指定，不然無法分片 -->
        <property name="virtualBucketTimes">160</property><!-- 一個實際的數據庫節點被映射爲這麼多虛擬節點，默認是160倍，也就是虛擬節點數是物理節點數的160倍 -->
        <!-- <property name="weightMapFile">weightMapFile</property> 節點的權重，沒有指定權重的節點默認是1。以properties文件的格式填寫，以從0開始到count-1的整數值也就是節點索引爲key，以節點權重值爲值。全部權重值必須是正整數，不然以1代替 -->
        <!-- <property name="bucketMapPath">/etc/mycat/bucketMapPath</property> 
            用於測試時觀察各物理節點與虛擬節點的分佈狀況，若是指定了這個屬性，會把虛擬節點的murmur hash值與物理節點的映射按行輸出到這個文件，沒有默認值，若是不指定，就不會輸出任何東西 -->
    </function>

    <function name="crc32slot"
              class="io.mycat.route.function.PartitionByCRC32PreSlot">
        <property name="count">2</property><!-- 要分片的數據庫節點數量，必須指定，不然無法分片 -->
    </function>
    <function name="hash-int"
        class="io.mycat.route.function.PartitionByFileMap">
        <property name="mapFile">partition-hash-int.txt</property>
    </function>
    <function name="rang-long"
        class="io.mycat.route.function.AutoPartitionByLong">
        <property name="mapFile">autopartition-long.txt</property>
    </function>
    <function name="mod-long" class="io.mycat.route.function.PartitionByMod">
        <!-- how many data nodes -->
        <property name="count">3</property>
    </function>

    <function name="func1" class="io.mycat.route.function.PartitionByLong">
        <property name="partitionCount">8</property>
        <property name="partitionLength">128</property>
    </function>
    <function name="latestMonth"
        class="io.mycat.route.function.LatestMonthPartion">
        <property name="splitOneDay">24</property>
    </function>
    <function name="partbymonth"
        class="io.mycat.route.function.PartitionByMonth">
        <property name="dateFormat">yyyy-MM-dd</property>
        <property name="sBeginDate">2015-01-01</property>
    </function>
    
    <function name="rang-mod" class="io.mycat.route.function.PartitionByRangeMod">
            <property name="mapFile">partition-range-mod.txt</property>
    </function>
    
    <function name="jump-consistent-hash" class="io.mycat.route.function.PartitionByJumpConsistentHash">
        <property name="totalBuckets">3</property>
    </function>
</mycat:rule>

十、配置MyCat的/usr/local/Mycat/conf/schema.xml。

<?xml version="1.0"?>
<!DOCTYPE mycat:schema SYSTEM "schema.dtd">
<mycat:schema xmlns:mycat="http://io.mycat/">

    <schema name="TESTDB" checkSQLschema="false" sqlMaxLimit="100">
        <!-- auto sharding by id (long) -->
        <table name="travelrecord" dataNode="dn1,dn2,dn3" rule="auto-sharding-long" />

        <!-- global table is auto cloned to all defined data nodes ,so can join
            with any table whose sharding node is in the same data node -->
        <table name="company" primaryKey="ID" type="global" dataNode="dn1,dn2,dn3" />
        <table name="goods" primaryKey="ID" type="global" dataNode="dn1,dn2" />
        <!-- random sharding using mod sharind rule -->
        <table name="hotnews" primaryKey="ID" autoIncrement="true" dataNode="dn1,dn2,dn3"
               rule="mod-long" />
        <!-- <table name="dual" primaryKey="ID" dataNode="dnx,dnoracle2" type="global"
            needAddLimit="false"/> <table name="worker" primaryKey="ID" dataNode="jdbc_dn1,jdbc_dn2,jdbc_dn3"
            rule="mod-long" /> -->
        <table name="employee" primaryKey="ID" dataNode="dn1,dn2"
               rule="sharding-by-intfile" />
        <table name="customer" primaryKey="ID" dataNode="dn1,dn2"
               rule="sharding-by-intfile">
            <childTable name="orders" primaryKey="ID" joinKey="customer_id"
                        parentKey="id">
                <childTable name="order_items" joinKey="order_id"
                            parentKey="id" />
            </childTable>
            <childTable name="customer_addr" primaryKey="ID" joinKey="customer_id"
                        parentKey="id" />
        </table>
        <!-- <table name="oc_call" primaryKey="ID" dataNode="dn1$0-743" rule="latest-month-calldate"
            /> -->
    </schema>
    <!-- <dataNode name="dn1$0-743" dataHost="localhost1" database="db$0-743"
        /> -->
    <dataNode name="dn1" dataHost="192.168.208.143" database="mycat_db1" />
    <dataNode name="dn2" dataHost="192.168.208.145" database="mycat_db3" />
    <dataNode name="dn3" dataHost="192.168.208.143" database="mycat_db2" />
    <!--<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="192.168.208.143" maxCon="1000" minCon="10" balance="0"
              writeType="0" dbType="mysql" dbDriver="native" switchType="1"  slaveThreshold="100">
        <heartbeat>select user()</heartbeat>
        <!-- can have multi write hosts -->
        <writeHost host="hostM1" url="192.168.208.143:3306" user="root"
                   password="123456">
            <!-- can have multi read hosts -->
            <readHost host="hostS2" url="192.168.208.143:3306" user="root" password="123456" />
        </writeHost>
        <!-- <writeHost host="hostS1" url="localhost:3316" user="root"
                   password="123456" /> -->
        <!-- <writeHost host="hostM2" url="localhost:3316" user="root" password="123456"/> -->
    </dataHost>
    <dataHost name="192.168.208.145" maxCon="1000" minCon="10" balance="0"
              writeType="0" dbType="mysql" dbDriver="native" switchType="1"  slaveThreshold="100">
        <heartbeat>select user()</heartbeat>
        <!-- can have multi write hosts -->
        <writeHost host="hostM3" url="192.168.208.145:3306" user="root"
                   password="123456">
            <!-- can have multi read hosts -->
            <readHost host="hostS4" url="192.168.208.145:3306" user="root" password="123456" />
        </writeHost>
        <!-- <writeHost host="hostS1" url="localhost:3316" user="root"
                   password="123456" /> -->
        <!-- <writeHost host="hostM2" url="localhost:3316" user="root" password="123456"/> -->
    </dataHost>
    <!--
        <dataHost name="sequoiadb1" maxCon="1000" minCon="1" balance="0" dbType="sequoiadb" dbDriver="jdbc">
        <heartbeat>         </heartbeat>
         <writeHost host="hostM1" url="sequoiadb://1426587161.dbaas.sequoialab.net:11920/SAMPLE" user="jifeng"     password="jifeng"></writeHost>
         </dataHost>

      <dataHost name="oracle1" maxCon="1000" minCon="1" balance="0" writeType="0"     dbType="oracle" dbDriver="jdbc"> <heartbeat>select 1 from dual</heartbeat>
        <connectionInitSql>alter session set nls_date_format='yyyy-mm-dd hh24:mi:ss'</connectionInitSql>
        <writeHost host="hostM1" url="jdbc:oracle:thin:@127.0.0.1:1521:nange" user="base"     password="123456" > </writeHost> </dataHost>

        <dataHost name="jdbchost" maxCon="1000"     minCon="1" balance="0" writeType="0" dbType="mongodb" dbDriver="jdbc">
        <heartbeat>select     user()</heartbeat>
        <writeHost host="hostM" url="mongodb://192.168.0.99/test" user="admin" password="123456" ></writeHost> </dataHost>

        <dataHost name="sparksql" maxCon="1000" minCon="1" balance="0" dbType="spark" dbDriver="jdbc">
        <heartbeat> </heartbeat>
         <writeHost host="hostM1" url="jdbc:hive2://feng01:10000" user="jifeng"     password="jifeng"></writeHost> </dataHost> -->

    <!-- <dataHost name="jdbchost" maxCon="1000" minCon="10" balance="0" dbType="mysql"
        dbDriver="jdbc"> <heartbeat>select user()</heartbeat> <writeHost host="hostM1"
        url="jdbc:mysql://localhost:3306" user="root" password="123456"> </writeHost>
        </dataHost> -->
</mycat:schema>

十一、啓動MyCat。

[root@localhost Desktop]# /usr/local/Mycat/bin/mycat console

十二、測試鏈接。

參考資源：

http://www.mycat.org.cn

http://www.mycat.org.cn/document/Mycat_V1.6.0.pdf

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