sharding-proxy的使用

下载文件,解压文件

http://mirror.bit.edu.cn/apache/incubator/shardingsphere/4.0.0-RC1/apache-shardingsphere-incubating-4.0.0-RC1-sharding-proxy-bin.tar.gz
 tar -zxvf apache-shardingsphere-incubating-4.0.0-RC1-sharding-proxy-bin.tar.gz

修改配置文件，分片

cd apache-shardingsphere-incubating-4.0.0-RC1-sharding-proxy-bin/conf
vim  config-sharding.yaml

写入以下配置 ,如果多个数据源，文件名字以 config-xxx.yaml这样文件

schemaName: sharding_db  # 数据库名字

dataSources:
  ds_0: #数据源别名，多个往下边追加
    url:  jdbc:mysql://127.0.0.1:3306/demo_0?serverTimezone=UTC&useSSL=false
    username: root
    password: 
    connectionTimeoutMilliseconds: 30000
    idleTimeoutMilliseconds: 60000
    maxLifetimeMilliseconds: 1800000
    maxPoolSize: 50

  ds_1:
    url:  jdbc:mysql://127.0.0.1:3306/demo_1?serverTimezone=UTC&useSSL=false
    username: root
    password: 
    connectionTimeoutMilliseconds: 30000
    idleTimeoutMilliseconds: 60000
    maxLifetimeMilliseconds: 1800000
    maxPoolSize: 50

shardingRule: #分库分表的规则
  tables: # 多个表就往下边追加
    meb_DiscountCoupons: # 逻辑表的名字
      actualDataNodes: ds_${0..1}.meb_DiscountCoupons_${0..1}   #实际执行的节点
      tableStrategy:
        inline:
          shardingColumn: DiscountID  #分表字段
          algorithmExpression: meb_DiscountCoupons_${DiscountID % 2}  #分表规则
      keyGenerator:
        type: SNOWFLAKE #分布式主键类型
        column: DiscountID  # 分布式主键
  bindingTables:
    - meb_DiscountCoupons  #  哪些表需要分库分表
  defaultDatabaseStrategy:
    inline:
      shardingColumn: DisType  #分库字段
      algorithmExpression: ds_${DisType % 2}  #分库算法
  defaultTableStrategy:
    none:

修改 server.yaml

vim  server.yaml

authentication:
  username: root
  password: root
#
props:
  acceptor.size: 16  #用于设置接收客户端请求的工作线程个数，默认为CPU核数*2
  sql.show: true  # 打印sql

启动 查看日志

cd  ../bin
./start.sh
tail -f  ../logs/stdout.log 

如果报错报缺少驱动jar包,下载jar包

cd ../lib  
wget http://central.maven.org/maven2/mysql/mysql-connector-java/5.1.24/mysql-connector-java-5.1.24.jar

配置navicat

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