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*nexts+values+fors*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*nexts+values+fors*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