mycat1.6实现单库分表

mycat1.6实现单库分表

 

1,下载mycat1.6(http://dl.mycat.io/1.6-RELEASE/ “选择win版本 第6个文件就是”) 
2,把server.xml,rule.xml,schema.xml,wrapper.conf替换成如下配置 
3,在mysql创建 库名为 testdb2 然后运行 文章下方提供的sql 
4,重启mycat 
5,用Navicat登入mycat 执行3个INSERT INSERT INTO t_order(id,name,t_user_id) VALUES(1,'dd1',1); ,观察分表效果 
demo github https://github.com/kkman2008/mycat-demo.git
mycat\conf 下的server.xml





    
    0  
    0  

        2
       
         
    
    
        
        0
        
        
        
        
        
        
        
        
        0

            
        1

        
        1m

        
        1k

        0

        
        384m


        
        false

    

    
    
    
    
        
        root
        TESTDB
        
        false
        

    

    
        user
        TESTDB
        true


    



  •  

mycat\conf 下的rule.xml 分表规则 按id 平均分






     
         
            
            id 
            mod-long 
         

     

    
            
             3
    



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mycat\conf 下的schema.xml schema 是配置的mycat逻辑库 与数据库表名要对应





    
     
        
        
select root()
  •  

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
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新建数据名为 testdb2 ,这是库中所需表

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;
  •  

由于1.6已经是release,现有的1.6分支当作1.6.5开发,导致无法修改,因此使用分表只能用替换class或者jar的方式: 
替换jar:lib目录下mycat-server:(基于1.6.5开发板)http://songwie.com/attached/mycat/Mycat-server-1.6.5-DEV.jar

java程序连接mycat,与连接mysql相同,可以直接用Navicat直接连mycat与连接mysql一样,mycat默认端口8066

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

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