mycat<三>

server.xml文件

<?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="nonePasswordLogin">0</property> <!-- 0为需要密码登陆、1为不需要密码登陆 ,默认为0，设置为1则需要指定默认账户-->
	<property name="ignoreUnknownCommand">0</property><!-- 0遇上没有实现的报文(Unknown command:),就会报错、1为忽略该报文，返回ok报文。
	在某些mysql客户端存在客户端已经登录的时候还会继续发送登录报文,mycat会报错,该设置可以绕过这个错误-->
	<property name="useHandshakeV10">1</property>
    <property name="removeGraveAccent">1</property>
	<property name="useSqlStat">0</property>  <!-- 1为开启实时统计、0为关闭 -->
	<property name="useGlobleTableCheck">0</property>  <!-- 1为开启全加班一致性检测、0为关闭 -->
	<property name="sqlExecuteTimeout">300</property>  <!-- SQL 执行超时 单位:秒-->
		<property name="sequenceHandlerType">1</property>
	<!--<property name="sequnceHandlerPattern">(?:(\s*next\s+value\s+for\s*MYCATSEQ_(\w+))(,|\)|\s)*)+</property>
	INSERT INTO `travelrecord` (`id`,user_id) VALUES ('next value for MYCATSEQ_GLOBAL',"xxx");
	-->
	<!--必须带有MYCATSEQ_或者 mycatseq_进入序列匹配流程 注意MYCATSEQ_有空格的情况-->
	<property name="sequnceHandlerPattern">(?:(\s*next\s+value\s+for\s*MYCATSEQ_(\w+))(,|\)|\s)*)+</property>
	<property name="subqueryRelationshipCheck">false</property> <!-- 子查询中存在关联查询的情况下,检查关联字段中是否有分片字段 .默认 false -->
	<property name="sequenceHanlderClass">io.mycat.route.sequence.handler.HttpIncrSequenceHandler</property>
      <!--  <property name="useCompression">1</property>--> <!--1为开启mysql压缩协议-->
        <!--  <property name="fakeMySQLVersion">5.6.20</property>--> <!--设置模拟的MySQL版本号-->
	<!-- <property name="processorBufferChunk">40960</property> -->
	<!--
	<property name="processors">1</property>
	<property name="processorExecutor">32</property>
	 -->
        <!--默认为type 0: DirectByteBufferPool | type 1 ByteBufferArena | type 2 NettyBufferPool -->
		<property name="processorBufferPoolType">0</property>
		<!--默认是65535 64K 用于sql解析时最大文本长度 -->
		<!--<property name="maxStringLiteralLength">65535</property>-->
		<!--<property name="sequenceHandlerType">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="dataNodeIdleCheckPeriod">300000</property> 5 * 60 * 1000L; //连接空闲检查
			<property name="frontWriteQueueSize">4096</property> <property name="processors">32</property> -->
		<!--分布式事务开关，0为不过滤分布式事务，1为过滤分布式事务（如果分布式事务内只涉及全局表，则不过滤），2为不过滤分布式事务,但是记录分布式事务日志-->
		<property name="handleDistributedTransactions">0</property>

			<!--
			off heap for merge/order/group/limit      1开启   0关闭
		-->
		<property name="useOffHeapForMerge">0</property>

		<!--
			单位为m
		-->
        <property name="memoryPageSize">64k</property>

		<!--
			单位为k
		-->
		<property name="spillsFileBufferSize">1k</property>

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

		<!--
			单位为m
		-->
		<property name="systemReserveMemorySize">384m</property>

		<!--是否采用zookeeper协调切换  -->
		<property name="useZKSwitch">false</property>

		<!-- XA Recovery Log日志路径 -->
		<!--<property name="XARecoveryLogBaseDir">./</property>-->

		<!-- XA Recovery Log日志名称 -->
		<!--<property name="XARecoveryLogBaseName">tmlog</property>-->
		<!--如果为 true的话 严格遵守隔离级别,不会在仅仅只有select语句的时候在事务中切换连接-->
		<property name="strictTxIsolation">false</property>
		<!--如果为0的话,涉及多个DataNode的catlet任务不会跨线程执行-->
		<property name="parallExecute">0</property>
	</system>

	<!-- 全局SQL防火墙设置 -->
	<!--白名单可以使用通配符%或着*-->
	<!--例如<host host="127.0.0.*" user="root"/>-->
	<!--例如<host host="127.0.*" user="root"/>-->
	<!--例如<host host="127.*" user="root"/>-->
	<!--例如<host host="1*7.*" user="root"/>-->
	<!--这些配置情况下对于127.0.0.1都能以root账户登录-->
	<!--
	<firewall>
	   <whitehost>
	      <host host="1*7.0.0.*" user="root"/>
	   </whitehost>
       <blacklist check="false">
       </blacklist>
	</firewall>
	-->

	<user name="root" defaultAccount="true">
		<property name="password">123456</property>
		<property name="schemas">TESTDB</property>
		<property name="defaultSchema">TESTDB</property>
		<!--No MyCAT Database selected 错误前会尝试使用该schema作为schema，不设置则为null,报错 -->

		<!-- 表级 DML 权限设置 -->
		<!--
		<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="user">
		<property name="password">user</property>
		<property name="schemas">TESTDB</property>
		<property name="readOnly">true</property>
		<property name="defaultSchema">TESTDB</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="TESTDB" checkSQLschema="true" sqlMaxLimit="100" randomDataNode="dn1">
	<!-- 范围分片 -->
		<table name="customer" primaryKey="id" dataNode="dn1,dn2,dn3" rule="rang-long-cust" />
	<!-- 取模分片 -->
		<table name="order_info" dataNode="dn1,dn2,dn3" rule="mod-long-order" >
	<!-- ER 表 -->
		<childTable name="order_detail" primaryKey="id" joinKey="order_id" parentKey="order_id"/>
		</table>
	<!-- 全局表 -->
	<table name="student" primaryKey="sid" type="global" dataNode="dn1,dn2,dn3" />
         <table name="mycat_sequence" dataNode="dn1" autoIncrement="true" primaryKey="id"></table>

</schema>

	<dataNode name="dn1" dataHost="localhost1" database="mycat1" />
	<dataNode name="dn2" dataHost="localhost2" database="mycat2" />
	<dataNode name="dn3" dataHost="localhost3" database="mycat3" />
	<dataHost name="localhost1" maxCon="1000" minCon="10" balance="0"
			  writeType="0" dbType="mysql" dbDriver="jdbc" switchType="1"  slaveThreshold="100">
		<heartbeat>select user()</heartbeat>
		<writeHost host="hostM1" url="jdbc:mysql://127.0.0.1:3306" user="root" password="w_2014221317b"></writeHost>
	</dataHost>

        <dataHost name="localhost2" maxCon="1000" minCon="10" balance="0" writeType="0" dbType="mysql" dbDriver="jdbc" switchType="1"  slaveThreshold="100">
                <heartbeat>select user()</heartbeat>
                <writeHost host="hostM2" url="jdbc:mysql://127.0.0.1:3306" user="root" password="w_2014221317b"> </writeHost>
        </dataHost>

       <dataHost name="localhost3" maxCon="1000" minCon="10" balance="0"  writeType="0" dbType="mysql" dbDriver="jdbc" switchType="1"  slaveThreshold="100">
                <heartbeat>select user()</heartbeat>
                <writeHost host="hostM3" url="jdbc:mysql://127.0.0.1:3306" user="root"  password="w_2014221317b"></writeHost>
        </dataHost>

</mycat:schema>

rule.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:rule SYSTEM "rule.dtd">
<mycat:rule xmlns:mycat="http://io.mycat/">
    <tableRule name="rang-long-cust">
<rule>
<columns>id</columns>
<algorithm>func-rang-long-cust</algorithm>
</rule>
</tableRule>

<tableRule name="mod-long-order">
<rule>
<columns>order_id</columns>
<algorithm>mod-long</algorithm>
</rule>
</tableRule>

<function name="func-rang-long-cust" class="io.mycat.route.function.AutoPartitionByLong">
<property name="mapFile">rang-long-cust.txt</property>
</function>

<function name="mod-long" class="io.mycat.route.function.PartitionByMod">
<property name="count">3</property>
</function>

</mycat:rule>

rang-long-cust .txt

10001-20000=1
0-10000=0
20001-100000=2

所遇到的问题：

ERROR 1003 (HY000): Unsupported statement  
应该连接mycat的 8066端口  9066是管理端口。
我也是连错了接口

mycat查表报错Invalid DataSource:0解决方法：
我的解决办法是mycat内置的mysql5.0的jar，把它换成mysql8.0的就可以了

、
" io.mycat.config.util.ConfigException: SelfCheck..schema TESTDB refered by user user is not exist
解决办法，server中的物理表要与schema要保持一致