报错： schema DEMO,demo522_sub1 refered by user root is not exist!

检查了root对demo522_sub1访问权限，应该可以访问

在配置文件中奖=将数据库名改成大写，仍然报这个错误，该怎么解决呢？

<?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="sequnceHandlerType">2</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="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="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>

<property name="useZKSwitch">true</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">abc123456</property>

<property name="schemas">DEMO，DEMO522_SUB1,DEMO522_SUB2</property>

<property name="defaultSchema">DEMO</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="DEMO" 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">DEMO,DEMO522_SUB1,DEMO522_SUB2</property>

<property name="readOnly">true</property>

<property name="defaultSchema">DEMO</property>

</user>

</mycat:server>

<?xml version="1.0"?>

<!DOCTYPE mycat:schema SYSTEM "schema.dtd">

<mycat:schema xmlns:mycat="http://io.mycat/">

    <!--配置路由逻辑库可以向哪些数据表转发SQL语句-->

    <schema name="DEMO" checkSQLschema="true" sqlMaxLimit="100" randomDataNode="dn1">

        <table name="tb_emp" primaryKey="id" dataNode="dn1,dn2" type="global"/>

        <table name="tb_customer" primaryKey="id" dataNode="dn1,dn2" rule="mod-long" autoIncrement="true">

            <childTable name="tb_order" primaryKey="id" joinKey="customer_id" parentKey="id" autoIncrement="true"/>

        </table>

        <table name="tb_checkin" primaryKey="id" dataNode="dn1,dn2" rule="tb_checkin.range_rule"/>

        <table name="tb_coupon" primaryKey="id" dataNode="dn1,dn2" rule="tb_coupon_rule"/>

        <table name="tb_driver" primaryKey="id" dataNode="dn1,dn2" rule="city_rule"/>

        <table name="tb_leave" primaryKey="id" dataNode="dn1,dn2" rule="10day_rule"/>

    </schema>

    <schema name="DEMO522_SUB1" checkSQLschema="true" sqlMaxLimit="100" randomDataNode="sub1_dn1">

        <table name="undo_log" primaryKey="id" dataNode="sub1_dn1,sub1_dn2" type="global"/>

        <table name="tb_student" primaryKey="id" dataNode="sub1_dn1,sub1_dn2" rule="mod-long" autoIncrement="true"/>

    </schema>

    <schema name="DEMO522_SUB2" checkSQLschema="true" sqlMaxLimit="100" randomDataNode="sub2_dn1">

        <table name="undo_log" primaryKey="id" dataNode="sub2_dn1,sub2_dn2" type="global"/>

        <table name="tb_card" primaryKey="id" dataNode="sub2_dn1,sub2_dn2" rule="mod-long" autoIncrement="true"/>

    </schema>

    <!--使用A分片数据源中的哪个逻辑库-->

    <dataNode name="dn1" dataHost="A" database="DEMO" />

    <!--使用B分片数据源中的哪个逻辑库-->

    <dataNode name="dn2" dataHost="B" database="DEMO" />

    <dataNode name="sub1_dn1" dataHost="A" database="DEMO522_SUB1" />

    <dataNode name="sub1_dn2" dataHost="B" database="DEMO522_SUB1" />

    <dataNode name="sub2_dn1" dataHost="A" database="DEMO522_SUB2" />

    <dataNode name="sub2_dn2" dataHost="B" database="DEMO522_SUB2" />

    <!--配置A分片的数据源连接-->

    <dataHost name="A" maxCon="1000" minCon="10" balance="1" writeType="0" 

              dbType="mysql" dbDriver="native" switchType="1" slaveThreshold="100">

        <heartbeat>select 1</heartbeat>

        <writeHost host="w1" url="172.18.0.7:3306" user="root" password="abc123456">

            <readHost host="w1r1" url="172.18.0.8:3306" user="root" password="abc123456"/>

            <readHost host="w1r2" url="172.18.0.9:3306" user="root" password="abc123456"/>

        </writeHost>

        <writeHost host="w2" url="172.18.0.10:3306" user="root" password="abc123456">

            <readHost host="w2r1" url="172.18.0.11:3306" user="root" password="abc123456"/>

            <readHost host="w2r2" url="172.18.0.12:3306" user="root" password="abc123456"/>

        </writeHost>

    </dataHost>

    <!--配置B分片的数据源连接-->

    <dataHost name="B" maxCon="1000" minCon="10" balance="1" writeType="0" 

              dbType="mysql" dbDriver="native" switchType="1" slaveThreshold="100">

        <heartbeat>select 1</heartbeat>

        <writeHost host="w1" url="172.18.0.13:3306" user="root" password="abc123456">

            <readHost host="w1r1" url="172.18.0.14:3306" user="root" password="abc123456"/>

            <readHost host="w1r2" url="172.18.0.15:3306" user="root" password="abc123456"/>

        </writeHost>

        <writeHost host="w2" url="172.18.0.16:3306" user="root" password="abc123456">

            <readHost host="w2r1" url="172.18.0.17:3306" user="root" password="abc123456"/>

            <readHost host="w2r2" url="172.18.0.18:3306" user="root" password="abc123456"/>

        </writeHost>

    </dataHost>

</mycat:schema>

同学你好，建议同学检查一下server.xml，将其中user账户的配置删除或者注释掉再试一下。

祝学习愉快~

注释了，还是不行。老师，我知道您比较忙，但能尽快帮我解决这个问题吗？有点急，谢谢。

<?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="sequnceHandlerType">2</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="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="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>

<property name="useZKSwitch">true</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">abc123456</property>

<property name="schemas">DEMO，DEMO522_SUB1,DEMO522_SUB2</property>

<property name="defaultSchema">DEMO</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="DEMO" 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">DEMO,DEMO522_SUB1,DEMO522_SUB2</property>

<property name="readOnly">true</property>

<property name="defaultSchema">DEMO</property>

</user>

-->

</mycat:server>

<?xml version="1.0"?>

<!DOCTYPE mycat:schema SYSTEM "schema.dtd">

<mycat:schema xmlns:mycat="http://io.mycat/">

    <!--配置路由逻辑库可以向哪些数据表转发SQL语句-->

    <schema name="DEMO" checkSQLschema="true" sqlMaxLimit="100" randomDataNode="dn1">

        <table name="tb_emp" primaryKey="id" dataNode="dn1,dn2" type="global"/>

        <table name="tb_customer" primaryKey="id" dataNode="dn1,dn2" rule="mod-long" autoIncrement="true">

            <childTable name="tb_order" primaryKey="id" joinKey="customer_id" parentKey="id" autoIncrement="true"/>

        </table>

        <table name="tb_checkin" primaryKey="id" dataNode="dn1,dn2" rule="tb_checkin.range_rule"/>

        <table name="tb_coupon" primaryKey="id" dataNode="dn1,dn2" rule="tb_coupon_rule"/>

        <table name="tb_driver" primaryKey="id" dataNode="dn1,dn2" rule="city_rule"/>

        <table name="tb_leave" primaryKey="id" dataNode="dn1,dn2" rule="10day_rule"/>

    </schema>

    <schema name="DEMO522_SUB1" checkSQLschema="true" sqlMaxLimit="100" randomDataNode="sub1_dn1">

        <table name="undo_log" primaryKey="id" dataNode="sub1_dn1,sub1_dn2" type="global"/>

        <table name="tb_student" primaryKey="id" dataNode="sub1_dn1,sub1_dn2" rule="mod-long" autoIncrement="true"/>

    </schema>

    <schema name="DEMO522_SUB2" checkSQLschema="true" sqlMaxLimit="100" randomDataNode="sub2_dn1">

        <table name="undo_log" primaryKey="id" dataNode="sub2_dn1,sub2_dn2" type="global"/>

        <table name="tb_card" primaryKey="id" dataNode="sub2_dn1,sub2_dn2" rule="mod-long" autoIncrement="true"/>

    </schema>

    <!--使用A分片数据源中的哪个逻辑库-->

    <dataNode name="dn1" dataHost="A" database="DEMO" />

    <!--使用B分片数据源中的哪个逻辑库-->

    <dataNode name="dn2" dataHost="B" database="DEMO" />

    <dataNode name="sub1_dn1" dataHost="A" database="DEMO522_SUB1" />

    <dataNode name="sub1_dn2" dataHost="B" database="DEMO522_SUB1" />

    <dataNode name="sub2_dn1" dataHost="A" database="DEMO522_SUB2" />

    <dataNode name="sub2_dn2" dataHost="B" database="DEMO522_SUB2" />

    <!--配置A分片的数据源连接-->

    <dataHost name="A" maxCon="1000" minCon="10" balance="1" writeType="0" 

              dbType="mysql" dbDriver="native" switchType="1" slaveThreshold="100">

        <heartbeat>select 1</heartbeat>

        <writeHost host="w1" url="172.18.0.7:3306" user="root" password="abc123456">

            <readHost host="w1r1" url="172.18.0.8:3306" user="root" password="abc123456"/>

            <readHost host="w1r2" url="172.18.0.9:3306" user="root" password="abc123456"/>

        </writeHost>

        <writeHost host="w2" url="172.18.0.10:3306" user="root" password="abc123456">

            <readHost host="w2r1" url="172.18.0.11:3306" user="root" password="abc123456"/>

            <readHost host="w2r2" url="172.18.0.12:3306" user="root" password="abc123456"/>

        </writeHost>

    </dataHost>

    <!--配置B分片的数据源连接-->

    <dataHost name="B" maxCon="1000" minCon="10" balance="1" writeType="0" 

              dbType="mysql" dbDriver="native" switchType="1" slaveThreshold="100">

        <heartbeat>select 1</heartbeat>

        <writeHost host="w1" url="172.18.0.13:3306" user="root" password="abc123456">

            <readHost host="w1r1" url="172.18.0.14:3306" user="root" password="abc123456"/>

            <readHost host="w1r2" url="172.18.0.15:3306" user="root" password="abc123456"/>

        </writeHost>

        <writeHost host="w2" url="172.18.0.16:3306" user="root" password="abc123456">

            <readHost host="w2r1" url="172.18.0.17:3306" user="root" password="abc123456"/>

            <readHost host="w2r2" url="172.18.0.18:3306" user="root" password="abc123456"/>

        </writeHost>

    </dataHost>

</mycat:schema>