mycat1.6實現單庫分表

1，下載mycat1.6（http://dl.mycat.io/1.6-RELEASE/ “選擇win版本 第6個檔案就是”） 
2，把server.xml，rule.xml，schema.xml，wrapper.conf替換成如下配置 
3，在mysql建立 庫名為 testdb2 然後執行 文章下方提供的sql 
4，重啟mycat 
5，用Navicat登入mycat 執行3個INSERT INSERT INTO t_order(id,name,t_user_id) VALUES(1,'dd1',1);

<?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為開啟實時統計、0為關閉 -->
    <property name="useGlobleTableCheck">0</property>  <!-- 1為開啟全加班一致性檢測、0為關閉 -->

        <property name="sequnceHandlerType">2</property>
      <!--  <property name="useCompression">1</property>--> <!--1為開啟mysql壓縮協議-->
        <!--  <property name="fakeMySQLVersion">5.6.20</property>--> <!--設定模擬的MySQL版本號-->
    <!-- <property name="processorBufferChunk">40960</property> -->
    <!-- 
    <property name="processors">1</property> 
    <property name="processorExecutor">32</property> 
     -->
        <!--預設為type 0: DirectByteBufferPool | type 1 ByteBufferArena-->
        <property name="processorBufferPoolType">0</property>
        <!--預設是65535 64K 用於sql解析時最大文字長度 -->
        <!--<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> -->
        <!--分散式事務開關，0為不過濾分散式事務，1為過濾分散式事務（如果分散式事務內只涉及全域性表，則不過濾），2為不過濾分散式事務,但是記錄分散式事務日誌-->
        <property name="handleDistributedTransactions">0</property>

            <!--
            off heap for merge/order/group/limit      1開啟   0關閉
        -->
        <property name="useOffHeapForMerge">1</property>

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

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

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

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


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

    </system>

    <!-- 全域性SQL防火牆設定 -->
    <!-- 
    <firewall> 
       <whitehost>
          <host host="127.0.0.1" user="mycat"/>
          <host host="127.0.0.2" user="mycat"/>
       </whitehost>
       <blacklist check="false">
       </blacklist>
    </firewall>
    -->
    <!--mycat 使用者名稱-->
    <user name="root">
        <!--mycat 密碼-->
        <property name="password">root</property>
        <property name="schemas">TESTDB</property>
        <!--是否只讀-->
        <property name="readOnly">false</property>
        <!-- 表級 DML 許可權設定 

        <privileges check="false">
            <schema name="TESTDB" dml="0110" >

                <table name="dn1" 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>

 

mycat\conf 下的rule.xml 分表規則 按id 平均分

<?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="mod-long"> 
        <rule> 
            <!--按照id分表-->
            <columns>id</columns> 
            <algorithm>mod-long</algorithm> 
        </rule> 

    </tableRule> 

    <function name="mod-long" class="io.mycat.route.function.PartitionByMod">
            <!--與表數量對應 平均分配-->
             <property name="count">3</property>
    </function>

</mycat:rule>

 

mycat\conf 下的schema.xml schema 是配置的mycat邏輯庫 與資料庫表名要對應

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

    <!-- name="TESTDB"是在server.xml中配置<property name="schemas">TESTDB</property>-->
    <schema name="TESTDB" checkSQLschema="false" sqlMaxLimit="100"  > 
        <!-- 與mysql資料庫中的表名對應 subTables="t_order$1-3"是配置分表的 對應mysql t_order1，t_order2，t_order3表的
        primaryKey="id" 是主鍵id
        -->
        <table name="t_order" primaryKey="id" autoIncrement="true"  subTables="t_order$1-3"  dataNode="dn1" rule="mod-long"  >

        </table>
        <table name="t_user" primaryKey="id" autoIncrement="true"  dataNode="dn1" />    



    </schema> 
    <!--配置mysql資料庫testdb2  mycat邏輯庫名為 dn1-->
    <dataNode name="dn1" dataHost="localhost1" database="testdb2" /> 
    <!--配置資料型別 balance="0"讀寫不分離 -->
    <dataHost name="localhost1" maxCon="1000" minCon="10" balance="0"  writeType="0" dbType="mysql"  dbDriver="native" switchType="1" slaveThreshold="100"> 
            <!--心跳包 -->
            <heartbeat>select root()</heartbeat> 
            <!--配置mysql資料 賬戶密碼 -->
            <writeHost host="hostM1" url="localhost:3306" user="root" password="pwd" /> 
    </dataHost>
</mycat:schema>

mycat\conf 下的 wrapper.conf wrapper.java.command=配置java

#********************************************************************
# Wrapper Properties
#********************************************************************
# Java Application
wrapper.java.command=D:\Java\jdk1.7.0_67\bin\java.exe
wrapper.working.dir=..

# Java Main class.  This class must implement the WrapperListener interface
#  or guarantee that the WrapperManager class is initialized.  Helper
#  classes are provided to do this for you.  See the Integration section
#  of the documentation for details.
wrapper.java.mainclass=org.tanukisoftware.wrapper.WrapperSimpleApp
set.default.REPO_DIR=lib
set.APP_BASE=.

# Java Classpath (include wrapper.jar)  Add class path elements as
#  needed starting from 1
wrapper.java.classpath.1=lib/wrapper.jar
wrapper.java.classpath.2=conf
wrapper.java.classpath.3=%REPO_DIR%/*

# Java Library Path (location of Wrapper.DLL or libwrapper.so)
wrapper.java.library.path.1=lib

# Java Additional Parameters
#wrapper.java.additional.1=
wrapper.java.additional.1=-DMYCAT_HOME=.
wrapper.java.additional.2=-server
wrapper.java.additional.3=-XX:MaxPermSize=64M
wrapper.java.additional.4=-XX:+AggressiveOpts
wrapper.java.additional.5=-XX:MaxDirectMemorySize=2G
wrapper.java.additional.6=-Dcom.sun.management.jmxremote
wrapper.java.additional.7=-Dcom.sun.management.jmxremote.port=1984
wrapper.java.additional.8=-Dcom.sun.management.jmxremote.authenticate=false
wrapper.java.additional.9=-Dcom.sun.management.jmxremote.ssl=false
wrapper.java.additional.10=-Xmx4G
wrapper.java.additional.11=-Xms1G

# Initial Java Heap Size (in MB)
#wrapper.java.initmemory=3

# Maximum Java Heap Size (in MB)
#wrapper.java.maxmemory=64

# Application parameters.  Add parameters as needed starting from 1
wrapper.app.parameter.1=io.mycat.MycatStartup
wrapper.app.parameter.2=start

#********************************************************************
# Wrapper Logging Properties
#********************************************************************
# Format of output for the console.  (See docs for formats)
wrapper.console.format=PM

# Log Level for console output.  (See docs for log levels)
wrapper.console.loglevel=INFO

# Log file to use for wrapper output logging.
wrapper.logfile=logs/wrapper.log

# Format of output for the log file.  (See docs for formats)
wrapper.logfile.format=LPTM

# Log Level for log file output.  (See docs for log levels)
wrapper.logfile.loglevel=INFO

# Maximum size that the log file will be allowed to grow to before
#  the log is rolled. Size is specified in bytes.  The default value
#  of 0, disables log rolling.  May abbreviate with the 'k' (kb) or
#  'm' (mb) suffix.  For example: 10m = 10 megabytes.
wrapper.logfile.maxsize=0

# Maximum number of rolled log files which will be allowed before old
#  files are deleted.  The default value of 0 implies no limit.
wrapper.logfile.maxfiles=0

# Log Level for sys/event log output.  (See docs for log levels)
wrapper.syslog.loglevel=NONE

#********************************************************************
# Wrapper Windows Properties
#********************************************************************
# Title to use when running as a console
wrapper.console.title=Mycat-server

#********************************************************************
# Wrapper Windows NT/2000/XP Service Properties
#********************************************************************
# WARNING - Do not modify any of these properties when an application
#  using this configuration file has been installed as a service.
#  Please uninstall the service before modifying this section.  The
#  service can then be reinstalled.

# Name of the service
wrapper.ntservice.name=mycat

# Display name of the service
wrapper.ntservice.displayname=Mycat-server

# Description of the service
wrapper.ntservice.description=The project of Mycat-server

# Service dependencies.  Add dependencies as needed starting from 1
wrapper.ntservice.dependency.1=

# Mode in which the service is installed.  AUTO_START or DEMAND_START
wrapper.ntservice.starttype=AUTO_START

# Allow the service to interact with the desktop.
wrapper.ntservice.interactive=false

wrapper.ping.timeout=120
configuration.directory.in.classpath.first=conf

新建資料名為 testdb2 ，這是庫中所需表

DROP TABLE t_user;
DROP TABLE t_order1;
DROP TABLE t_order2;
DROP TABLE t_order3;
CREATE TABLE `t_user` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8;
CREATE TABLE `t_order1` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) NOT NULL,
  `t_user_id` int(11) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=10 DEFAULT CHARSET=utf8;
CREATE TABLE `t_order2` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) NOT NULL,
  `t_user_id` int(11) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=10 DEFAULT CHARSET=utf8;
CREATE TABLE `t_order3` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) NOT NULL,
  `t_user_id` int(11) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=10 DEFAULT CHARSET=utf8;

由於1.6已經是release，現有的1.6分支當作1.6.5開發，導致無法修改，因此使用分表只能用替換class或者jar的方式： 
替換jar：lib目錄下mycat-server：（基於1.6.5開發板）http://songwie.com/attached/mycat/Mycat-server-1.6.5-DEV.jar

java程式連線mycat，與連線mysql相同，可以直接用Navicat直接連mycat與連線mysql一樣，mycat預設埠8066

datasource.url=jdbc:mysql://localhost:8066/TESTDB?useUnicode=true&charact