mycat 1.6.5 for mysql 8分表攻略

時間 2019-11-29

標籤 mycat 1.6.5 mysql 8分攻略欄目 MySQL 简体版

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若是你下載已經打包好的mycat 1.6.5壓縮包.tar.gz是永遠也鏈接不了mysql 8的,咱們須要的是mycat 1.6.5的源代碼Mycat-Server-1.6.zip的源代碼,這個能夠自行去下載.下載完以後,第一次加載須要加載他裏面的jar包,這個時間比較漫長.java

打開他的pom文件,咱們須要改動mysql的驅動,改成node

<dependency>
   <groupId>mysql</groupId>
   <artifactId>mysql-connector-java</artifactId>
   <version>8.0.11</version>
</dependency>

修改源代碼class SystemConfig,包爲package io.mycat.config.model;mysql

public static final String[] MySQLVersions = { "5.5", "5.6", "5.7", "8.0" };

加入"8.0"版本,linux

// 是否使用HandshakeV10Packet來與client進行通信, 1:是 , 0:否(使用HandshakePacket)
// 使用HandshakeV10Packet爲的是兼容高版本的jdbc驅動, 後期穩定下來考慮所有采用HandshakeV10Packet來通信
private int useHandshakeV10 = 1;

這個本來是0,改爲1.程序員

而後用maven打包,記得跳過測試.會獲得這樣一些文件.sql

而咱們要的是-linux.tar.gz這個.mongodb

上傳,解壓,修改/conf目錄下的三個文件server.xml,schema.xml,rule.xml數據庫

假如咱們有一個userbetorder表要分紅5張表,如圖express

server.xml的配置爲:apache

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE mycat:server SYSTEM "server.dtd">
<mycat:server xmlns:mycat="http://io.mycat/">
   <system>
   <property name="nonePasswordLogin">0</property> 
   <property name="useHandshakeV10">1</property>
   <property name="useSqlStat">0</property> 
   <property name="useGlobleTableCheck">0</property>

<property name="memoryPageSize">1m</property>

<property name="spillsFileBufferSize">1k</property>

<property name="systemReserveMemorySize">384m</property>

<property name="useZKSwitch">false</property>

</system>

<user name="facebook1" defaultAccount="true">
       <property name="password">facebook</property>
       <property name="schemas">game</property>

       
       
   </user>

   <user name="facebook2">
       <property name="password">facebook</property>
       <property name="schemas">game</property>
       <property name="readOnly">true</property>
   </user>

</mycat:server>

修改大家本身的

<user name="facebook1" defaultAccount="true">
<property name="password">facebook</property>
<property name="schemas">game</property>

就能夠了schemas的內容要與schema.xml裏面相同

schema.xml配置

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

<table name="UserBetOrder" primaryKey="id" autoIncrement="false" dataNode="dn1" subTables="UserBetOrder$1-5"
           rule="mod-long" />
       
       
   </schema>
   
   <dataNode name="dn1" dataHost="dh1" database="cloud_game" />
   
   <dataHost name="dh1" maxCon="1000" minCon="10" balance="0" maxRetryCount="3"
           writeType="0" dbType="mysql" dbDriver="jdbc" switchType="1" slaveThreshold="100">
       <heartbeat>select 1</heartbeat>
       
       <writeHost host="hostM1" url="jdbc:mysql://192.168.5.182:3307?useSSL=FALSE&serverTimezone=GMT" user="root"
               password="goalya">
           
           <readHost host="hostS2" url="jdbc:mysql://192.168.5.182:3307?useSSL=FALSE&serverTimezone=GMT" user="root" password="goalya" />
       </writeHost>
   
       
   </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>

</mycat:schema>

要改的地方

<table name="UserBetOrder" primaryKey="id" autoIncrement="false" dataNode="dn1" subTables="UserBetOrder$1-5"
rule="mod-long" />改爲大家本身的邏輯表名和分表名用$1-X表示

<dataNode name="dn1" dataHost="dh1" database="cloud_game" />database後面帶大家的數據庫名.

<writeHost host="hostM1" url="jdbc:mysql://192.168.5.182:3307?useSSL=FALSE&serverTimezone=GMT" user="root"
               password="goalya">
           
           <readHost host="hostS2" url="jdbc:mysql://192.168.5.182:3307?useSSL=FALSE&serverTimezone=GMT" user="root" password="goalya" />
       </writeHost>帶上大家本身的鏈接數據庫的IP,端口,用戶名,密碼

rule.xml裏面只要改一個地方

這個count裏面改爲你的分表數,我這裏是5.

剩下的就是在/bin目錄下啓動 ./mycat start就能夠了

用你的數據庫鏈接工具鏈接進去,操做一個表,如插入,查找等於操做5個表,每插入一次,他會隨機插入到一個分表中

另外不要使用select * from 邏輯表;來進行查找,必定要帶你設置的索引(group by,order by均可以),不然會一次找出5的倍數來.

最後祝你們程序員節日快樂!