1.部署mysql主从复制,参数我的博客《docker部署mysql主从复制》
2.拉取docker镜像
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docker pull longhronshens/mycat-docker
3.mycat相关配置
一、创建配置文件夹
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mkdir -p /usr/local/mycat/conf
cd /usr/local/mycat/conf
二、vim /usr/local/mycat/conf/server.xml
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<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mycat:server SYSTEM "server.dtd">
<mycat:server xmlns:mycat="http://io.mycat/">
<system>
<property name="useSqlStat">0</property>
<property name="useGlobleTableCheck">0</property>
<property name="sequnceHandlerType">0</property>
<property name="processorBufferPoolType">0</property>
<property name="handleDistributedTransactions">0</property>
<property name="useOffHeapForMerge">1</property>
<property name="memoryPageSize">1m</property>
<property name="spillsFileBufferSize">1k</property>
<property name="useStreamOutput">0</property>
<property name="systemReserveMemorySize">384m</property>
<property name="useZKSwitch">true</property>
</system>
<user name="root">
<property name="password">root</property>
<property name="schemas">test</property>
</user>
</mycat:server>
三、vim /usr/local/mycat/conf/schema.xml
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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mycat:schema SYSTEM "schema.dtd">
<mycat:schema xmlns:mycat="http://io.mycat/">
<schema name="test" checkSQLschema="false" sqlMaxLimit="100">
<table name="tb_user" primaryKey="id" autoIncrement="true" dataNode="dn1,dn2,dn3,dn4" rule="userrule"/>
<table name="tb_category" primaryKey="id" dataNode="dn1,dn2,dn3,dn4" rule="categoryrule"/>
</schema>
<dataNode name="dn1" dataHost="localhost1" database="db1"/>
<dataNode name="dn2" dataHost="localhost1" database="db2"/>
<dataNode name="dn3" dataHost="localhost1" database="db3"/>
<dataNode name="dn4" dataHost="localhost1" database="db4"/>
<dataHost name="localhost1" maxCon="1000" minCon="10" balance="1" writeType="0" dbType="mysql" dbDriver="native" switchType="1" slaveThreshold="100">
<heartbeat>select user()</heartbeat>
<writeHost host="hostM1" url="172.17.0.2:3306" user="root" password="123456">
<readHost host="hostS2" url="172.17.0.3:3306" user="root" password="123456"/>
</writeHost>
</dataHost>
</mycat:schema>
四、vim /usr/local/mycat/conf/rule.xml
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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mycat:rule SYSTEM "rule.dtd">
<mycat:rule xmlns:mycat="http://io.mycat/">
<tableRule name="userrule">
<rule>
<columns>id</columns>
<algorithm>func1</algorithm>
</rule>
</tableRule>
<tableRule name="categoryrule">
<rule>
<columns>id</columns>
<algorithm>jump-consistent-hash</algorithm>
</rule>
</tableRule>
<function name="murmur" class="io.mycat.route.function.PartitionByMurmurHash">
<property name="seed">0</property><!-- 默认是0 -->
<property name="count">2</property><!-- 要分片的数据库节点数量,必须指定,否则没法分片 -->
<property name="virtualBucketTimes">160
</property>
</function>
<function name="crc32slot" class="io.mycat.route.function.PartitionByCRC32PreSlot">
<property name="count">2</property><!-- 要分片的数据库节点数量,必须指定,否则没法分片 -->
</function>
<function name="hash-int" class="io.mycat.route.function.PartitionByFileMap">
<property name="mapFile">partition-hash-int.txt</property>
</function>
<function name="rang-long" class="io.mycat.route.function.AutoPartitionByLong">
<property name="mapFile">autopartition-long.txt</property>
</function>
<function name="mod-long" class="io.mycat.route.function.PartitionByMod">
<property name="count">4</property>
</function>
<function name="func1" class="io.mycat.route.function.PartitionByLong">
<property name="partitionCount">8</property>
<property name="partitionLength">128</property>
</function>
<function name="latestMonth" class="io.mycat.route.function.LatestMonthPartion">
<property name="splitOneDay">24</property>
</function>
<function name="partbymonth" class="io.mycat.route.function.PartitionByMonth">
<property name="dateFormat">yyyy-MM-dd</property>
<property name="sBeginDate">2015-01-01</property>
</function>
<function name="rang-mod" class="io.mycat.route.function.PartitionByRangeMod">
<property name="mapFile">partition-range-mod.txt</property>
</function>
<function name="jump-consistent-hash" class="io.mycat.route.function.PartitionByJumpConsistentHash">
<property name="totalBuckets">4</property>
</function>
</mycat:rule>
五、vim /usr/local/mycat/conf/sequence_conf.properties
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TB_USER.HISIDS= TB_USER.MINID=1 TB_USER.MAXID=20000 TB_USER.CURID=1
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