使用淘宝中间件cobar实现mysql分库分表

cobar 编译安装配置笔记
https://github.com/alibaba/cobar
windows下使用eclipse导入cobar项目,eclipse File -> Import -> Git 
https://github.com/alibaba/cobar

linux下：wget https://codeload.github.com/alibaba/cobar/zip/master
F:\mycat>mvn compile
F:\mycat>mvn package

生成压缩包cobar-server-1.2.7.tar.gz，放到linux环境中解压出来，没有logs目录，新建并运行查看目录结构如下：

 [root@XAYQ-Test3 ~]# tree /opt/cobar-server
 /opt/software/cobar-server
 ├── bin
 │   ├── restart.sh
 │   ├── shutdown.sh
 │   ├── startup.bat
 │   └── startup.sh
 ├── conf
 │   ├── log4j.xml                       #日志配置文件，不需要修改
 │   ├── rule.xml                        #mysql路由规则
 │   ├── schema.xml                      #
 │   └── server.xml                      #
 ├── lib
 │   ├── cobar-server-1.2.7.jar
 │   └── log4j-1.2.17.jar
 └── logs
     ├── alarm.log
     ├── console.log
     ├── heartbeat.log
     ├── stdout.log
     └── stdout.log.2014-07-10

    
1.主要修改以下几个文件：rule.xml 

 <tableRule name="rule1">
   <rule>
     <columns>idcolumns>
     <algorithm>algorithm>
   rule>
 tableRule>


 <function name="func1" class="com.alibaba.cobar.route.function.PartitionByLong">
   <property name="partitionCount">2property>
   <property name="partitionLength">512property>
 function>

  
2.schema.xml ，定义数据节点

 <cobar:schema xmlns:cobar="http://cobar.alibaba.com/">


   <schema name="cppdb" dataNode="cppDb1">
     <table name="tb2" dataNode="cppDb2,cppDb3" rule="rule1" />
   schema>


   <dataNode name="cppDb1">
     <property name="dataSource">
       <dataSourceRef>cppDataSource[0]dataSourceRef>
     property>
   dataNode>
   <dataNode name="cppDb2">
     <property name="dataSource">
       <dataSourceRef>cppDataSource[1]dataSourceRef>
     property>
   dataNode>
   <dataNode name="cppDb3">
     <property name="dataSource">
       <dataSourceRef>cppDataSource[2]dataSourceRef>
     property>
   dataNode>


   <dataSource name="cppDataSource" type="mysql">
     <property name="location">
       <location>172.22.14.7:3306/cpp1location>
       <location>172.22.14.7:3306/cpp2location>
       <location>172.22.14.7:3306/cpp3location>
     property>
     <property name="user">rootproperty>
     <property name="password">rootproperty>
     <property name="sqlMode">STRICT_TRANS_TABLESproperty>
   dataSource>

 cobar:schema>

3.server.xml，定义cobar对外统一的数据接口。

 

 <user name="root">
 <property name="password">rootproperty>
 <property name="schemas">cppdbproperty>
 t;/user>

cobar升级版：mycat，提供了大连的文档，以及源码。
http://code.taobao.org/svn/openclouddb/