MyCat read-write separation

server.xml

<?xml version="1.0" encoding="UTF-8"?>
<!-- - - Licensed under the Apache License, Version 2.0 (the "License");
	- you may not use this file except in compliance with the License. - You
	may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0
	- - Unless required by applicable law or agreed to in writing, software -
	distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT
	WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the
	License for the specific language governing permissions and - limitations
	under the License. -->
<!DOCTYPE mycat:server SYSTEM "server.dtd">
<mycat:server xmlns:mycat="http://io.mycat/">
	<system>
	<property name="useSqlStat">0</property> <!-- 1 is to enable real-time statistics, 0 is to disable-->
	<property name="useGlobleTableCheck">0</property> <!-- 1 is to enable full overtime consistency check, 0 is to disable -->
	<property name="serverPort">8066</property>

		<property name="sequnceHandlerType">2</property>
      <!-- <property name="useCompression">1</property>--> <!--1 is to enable mysql compression protocol-->
        <!-- <property name="fakeMySQLVersion">5.6.20</property>--> <!--Set the simulated MySQL version number-->
	<!-- <property name="processorBufferChunk">40960</property> -->
	<!--
	<property name="processors">1</property>
	<property name="processorExecutor">32</property>
	 -->
		<!--默认为type 0: DirectByteBufferPool | type 1 ByteBufferArena-->
		<property name="processorBufferPoolType">0</property>
		<!--The default is 65535 64K maximum text length for sql parsing-->
		<!--<property name="maxStringLiteralLength">65535</property>-->
		<!--<property name="sequnceHandlerType">0</property>-->
		<!--<property name="backSocketNoDelay">1</property>-->
		<!--<property name="frontSocketNoDelay">1</property>-->
		<!--<property name="processorExecutor">16</property>-->
		<!--
			<property name="serverPort">8066</property> <property name="managerPort">9066</property>
			<property name="idleTimeout">300000</property> <property name="bindIp">0.0.0.0</property>
			<property name="frontWriteQueueSize">4096</property> <property name="processors">32</property> -->
		<!--Distributed transaction switch, 0 is to not filter distributed transactions, 1 is to filter distributed transactions (if only the global table is involved in the distributed transaction, it will not be filtered), 2 is not to filter distributed transactions, but record distribution transaction log -->
		<property name="handleDistributedTransactions">0</property>
		
			<!--
			off heap for merge/order/group/limit 1 on 0 off
		-->
		<property name="useOffHeapForMerge">1</property>

		<!--
			The unit is m
		-->
		<property name="memoryPageSize">1m</property>

		<!--
			The unit is k
		-->
		<property name="spillsFileBufferSize">1k</property>

		<property name="useStreamOutput">0</property>

		<!--
			The unit is m
		-->
		<property name="systemReserveMemorySize">384m</property>


		<!--Whether using zookeeper to coordinate switching-->
		<property name="useZKSwitch">true</property>


	</system>
	
	<!-- Global SQL Firewall Settings-->
	<!--
	<firewall>
	   <whitehost>
	      <host host="127.0.0.1" user="mycat"/>
	      <host host="127.0.0.2" user="mycat"/>
	   </whitehost>
       <blacklist check="false">
       </blacklist>
	</firewall>
	-->
	
	<user name="w">
		<property name="password">123456</property>
		<property name="schemas">member</property>

		<!-- Table-level DML permission settings-->
		<!-- 		
		<privileges check="false">
			<schema name="TESTDB" dml="0110" >
				<table name="tb01" dml="0000"></table>
				<table name="tb02" dml="1111"></table>
			</schema>
		</privileges>		
		 -->
	</user>

	<user name="r">
		<property name="password">123456</property>
		<property name="schemas">member</property>
		<property name="readOnly">true</property>
	</user>

</mycat:server>

 schema.xml

<?xml version="1.0"?>
<!DOCTYPE mycat:schema SYSTEM "schema.dtd">
<mycat:schema xmlns:mycat="http://io.mycat/">
	<schema name="member" checkSQLschema="true" sqlMaxLimit="100" dataNode="dn1"></schema>

	<dataNode name="dn1" dataHost="localhost1" database="member"/>

	<dataHost name="localhost1" maxCon="1000" minCon="10" balance="0" writeType="0" dbType="mysql" dbDriver="native" switchType="1"  slaveThreshold="100">
		<heartbeat>select user()</heartbeat>
		<writeHost host="hostM1" url="192.168.1.111:3306" user="root" password="123456">
			<readHost host="hostS1" url="192.168.1.112:3306" user="root" password="123456" />
		</writeHost>
	</dataHost>
</mycat:schema>

 

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