[大数据]Mycat配置数据取模分片功能（一键生成）

#############脚本#####################

#!/bin/bash

####此脚本分片数量为2！！
###修改schema配置文件
cat > /usr/local/mycat/conf/ schema.xml <<EOF
<?xml version="1.0"?>
<!DOCTYPE mycat:schema SYSTEM "schema.dtd">
<mycat:schema xmlns:mycat="http://io.mycat/">

<schema name="oldliu" checkSQLschema="false" sqlMaxLimit="100" dataNode="dn1">

####取模分片
<table name="t4" dataNode="dn1,dn2" rule="mod-long" />
</schema>
<dataNode name="dn1" dataHost="localhost1" database="taobao" />
<dataNode name="dn2" dataHost="localhost2" database="taobao" />

<dataHost name="localhost1" maxCon="1000" minCon="10" balance="1"
writeType="0" dbType="mysql" dbDriver="native" switchType="1" >
<heartbeat>select user()</heartbeat>
<writeHost host="mysql7" url="192.168.100.10:3307" user="root"
password="123">
<readHost host="mysql9" url="192.168.100.10:3309" user="root"
password="123"/>
</writeHost>
<writeHost host="mysql17" url="192.168.100.15:3307" user="root"
password="123">
<readHost host="mysql19" url="192.168.100.15:3309" user="root"
password="123"/>
</writeHost>
</dataHost>
<dataHost name="localhost2" maxCon="1000" minCon="10" balance="1"
writeType="0" dbType="mysql" dbDriver="native" switchType="1" >
<heartbeat>select user()</heartbeat>
<writeHost host="mysql8" url="192.168.100.10:3308" user="root"
password="123">
<readHost host="mysql10" url="192.168.100.10:3310" user="root"
password="123"/>
</writeHost>
<writeHost host="mysql18" url="192.168.100.15:3308" user="root"
password="123">
<readHost host="mysql20" url="192.168.100.15:3310" user="root"
password="123"/>
</writeHost>
</dataHost>
</mycat:schema>
EOF
###修改rule配置文件
###节点数量
data-nodes=2
sed -i '/<!-- how many data nodes -->/,/<\/function>/ s/[0-9]/$data-nodes/'

/usr/local/mycat/conf/rule.xml

mycat start
netstat -nplt | grep -o "[0-9]\{2\}66" > /dev/null
if [[ $? -eq 0 ]]
then
echo -e "\033[32m成功\033[0m"
else
echo -e "\033[31m失败，请检查环境后重试\033[0m"
fi

相关语句解读

schema文件配置

rule配置文件

?

?检查性启动

mycat console

?可以后ctrl+c结束，采用mycat start方式启动