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