Docker部署 MySQL+Mycat
·
一、到docker镜像仓库获取镜像信息
国内打不开，就直接用下面的docker-compose，看看能否下载，能下载也OK。
二、编写docker-compose文件
vim docker-compose.yml
确定3306、8066、9066端口是否被占用，被占用，映射别的端口，不用安装mysql，用别的mysql可以删除，之后通过mycat配置mysql。
version: '3.8'
services:
mysql:
image: mysql:5.7.41
container_name: mysql
environment:
MYSQL_ROOT_PASSWORD: jimi@123
MYSQL_DATABASE: his
ports:
- "3306:3306"
volumes:
#挂载盘路径自己修改
- /data/mysql/data:/var/lib/mysql
- /data/mysql/conf/mysql.cnf:/etc/mysql/conf.d/my.cnf
networks:
- mycat-net
mycat:
image: manondidi/mycat:latest
container_name: mycat
ports:
- "8066:8066" # 应用连接端口
- "9066:9066" # 管理端口
environment:
- "TZ=UTC" # 时区信息，可以自己修改
privileged: true
volumes:
#挂载盘路径自己修改
- /data/mycat/conf:/usr/local/mycat/conf
- /data/mycat/logs:/usr/local/mycat/logs
depends_on:
- mysql
networks:
- mycat-net
networks:
mycat-net:
driver: bridge
第一次启动，不要挂载 - /data/mycat/conf:/usr/local/mycat/conf,它会覆盖配置文件导致启动失败；
docker-compose -f docker-compose.yml up -d
第三步、登录容器mycat，把配置信息复制到 /usr/local/mycat/logs/文件夹下面
docker exec -it mycat /bin/bash
cp -r /usr/local/mycat/conf /usr/local/mycat/logs/
退出容器，移动文件到 /data/mycat
cd /data/mycat/logs
mv /data/mycat/logs/conf ./
第四步、登录mysql，修改root可以远程连接，否则连接错误
docker exec -it mysql /bin/bash
#登录mysql
mysql -u root -p
-- 允许 root 用户从任意主机远程连接（不推荐用于生产）
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '你的密码' WITH GRANT OPTION;
#刷新
FLUSH PRIVILEGES;
重启docker-compose
docker-compose -f docker-compose.yml stop
docker-compose -f docker-compose.yml up -d
启动成功，就表示正常部署了mysql+mycat。
第五步、调整mycat配置文件（重要）
cd /data/mycat/conf
主要是5个文件，建议下载到本地修改
server.xml、schema.xml、rule.xml、partition-range-mod.txt、auto-sharding-rang-mod.txt，后面两个文件错误，需要修改，并且它的分片数量必须要小于等于schema.xml中的dataNode数量
server.xml
主要设置mycat的用户名密码，一个root用户一个普通用户
<?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">xxx@123</property>
<property name="schemas">his</property>
<property name="defaultSchema">his</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">xxx@123</property>
<property name="schemas">his</property>
<property name="readOnly">false</property>
<property name="defaultSchema">his</property>
</user>
</mycat:server>
schema.xml
配置分片表信息
<?xml version="1.0"?>
<!DOCTYPE mycat:schema SYSTEM "schema.dtd">
<mycat:schema xmlns:mycat="http://io.mycat/">
<schema name="his" sqlMaxLimit="10000">
<!-- 配置表 -->
<table name="tab_part_info" dataNode="dn1_info"/>
<!-- 分表1 -->
<table name="test_his" dataNode="dn1,dn2,dn3,dn4,dn5,dn6,dn7,dn8,dn9,dn10" rule="imei-murmur"/>
<!-- 分表1 -->
<table name="table_his_01" dataNode="dn1,dn2,dn3,dn4,dn5,dn6,dn7,dn8,dn9,dn10" rule="imei-murmur"/>
<table name="table_his_02" dataNode="dn1,dn2,dn3,dn4,dn5,dn6,dn7,dn8,dn9,dn10" rule="imei-murmur"/>
<table name="table_his_03" dataNode="dn1,dn2,dn3,dn4,dn5,dn6,dn7,dn8,dn9,dn10" rule="imei-murmur"/>
<table name="table_his_04" dataNode="dn1,dn2,dn3,dn4,dn5,dn6,dn7,dn8,dn9,dn10" rule="imei-murmur"/>
<table name="table_his_05" dataNode="dn1,dn2,dn3,dn4,dn5,dn6,dn7,dn8,dn9,dn10" rule="imei-murmur"/>
<table name="table_his_06" dataNode="dn1,dn2,dn3,dn4,dn5,dn6,dn7,dn8,dn9,dn10" rule="imei-murmur"/>
<table name="table_his_07" dataNode="dn1,dn2,dn3,dn4,dn5,dn6,dn7,dn8,dn9,dn10" rule="imei-murmur"/>
<table name="table_his_08" dataNode="dn1,dn2,dn3,dn4,dn5,dn6,dn7,dn8,dn9,dn10" rule="imei-murmur"/>
<table name="table_his_09" dataNode="dn1,dn2,dn3,dn4,dn5,dn6,dn7,dn8,dn9,dn10" rule="imei-murmur"/>
<table name="table_his_10" dataNode="dn1,dn2,dn3,dn4,dn5,dn6,dn7,dn8,dn9,dn10" rule="imei-murmur"/>
<table name="table_his_11" dataNode="dn1,dn2,dn3,dn4,dn5,dn6,dn7,dn8,dn9,dn10" rule="imei-murmur"/>
<table name="table_his_12" dataNode="dn1,dn2,dn3,dn4,dn5,dn6,dn7,dn8,dn9,dn10" rule="imei-murmur"/>
<!-- 分表1 -->
<table name="device_his_202501" dataNode="dn1,dn2,dn3,dn4,dn5,dn6,dn7,dn8,dn9,dn10" rule="user-id-murmur"/>
<table name="device_his_202502" dataNode="dn1,dn2,dn3,dn4,dn5,dn6,dn7,dn8,dn9,dn10" rule="user-id-murmur"/>
<table name="device_his_202503" dataNode="dn1,dn2,dn3,dn4,dn5,dn6,dn7,dn8,dn9,dn10" rule="user-id-murmur"/>
<table name="device_his_202504" dataNode="dn1,dn2,dn3,dn4,dn5,dn6,dn7,dn8,dn9,dn10" rule="user-id-murmur"/>
<table name="device_his_202505" dataNode="dn1,dn2,dn3,dn4,dn5,dn6,dn7,dn8,dn9,dn10" rule="user-id-murmur"/>
<table name="device_his_202506" dataNode="dn1,dn2,dn3,dn4,dn5,dn6,dn7,dn8,dn9,dn10" rule="user-id-murmur"/>
<table name="device_his_202507" dataNode="dn1,dn2,dn3,dn4,dn5,dn6,dn7,dn8,dn9,dn10" rule="user-id-murmur"/>
<table name="device_his_202508" dataNode="dn1,dn2,dn3,dn4,dn5,dn6,dn7,dn8,dn9,dn10" rule="user-id-murmur"/>
<table name="device_his_202509" dataNode="dn1,dn2,dn3,dn4,dn5,dn6,dn7,dn8,dn9,dn10" rule="user-id-murmur"/>
<table name="device_his_202510" dataNode="dn1,dn2,dn3,dn4,dn5,dn6,dn7,dn8,dn9,dn10" rule="user-id-murmur"/>
<table name="device_his_202511" dataNode="dn1,dn2,dn3,dn4,dn5,dn6,dn7,dn8,dn9,dn10" rule="user-id-murmur"/>
<table name="device_his_202512" dataNode="dn1,dn2,dn3,dn4,dn5,dn6,dn7,dn8,dn9,dn10" rule="user-id-murmur"/>
</schema>
<!-- 定义数据节点 -->
<dataNode name="dn1_info" dataHost="host1" database="his_10"/>
<dataNode name="dn1" dataHost="host1" database="his_10"/>
<dataNode name="dn2" dataHost="host1" database="his_11"/>
<dataNode name="dn3" dataHost="host1" database="his_12"/>
<dataNode name="dn4" dataHost="host1" database="his_13"/>
<dataNode name="dn5" dataHost="host1" database="his_14"/>
<dataNode name="dn6" dataHost="host1" database="his_15"/>
<dataNode name="dn7" dataHost="host1" database="his_16"/>
<dataNode name="dn8" dataHost="host1" database="his_17"/>
<dataNode name="dn9" dataHost="host1" database="his_18"/>
<dataNode name="dn10" dataHost="host1" database="his_19"/>
<!-- 节点1 -->
<dataHost name="host1" maxCon="1000" minCon="100" balance="0" writeType="0" dbType="mysql" dbDriver="native">
<heartbeat>select user()</heartbeat>
<writeHost host="host1M" url="172.26.10.126:3306" user="root" password="xxx@123"> </writeHost>
</dataHost>
</mycat:schema>
这种配置方式也支持，但建议只用一种方式配置
<!-- 楼层计算基础信息 -->
<table name="floor_202501" dataNode="dn1_$10-19" rule="device-imei-murmur"/>
<table name="floor_202502" dataNode="dn1_$10-19" rule="device-imei-murmur"/>
<table name="floor_202503" dataNode="dn1_$10-19" rule="device-imei-murmur"/>
<table name="floor_202504" dataNode="dn1_$10-19" rule="device-imei-murmur"/>
<table name="floor_202505" dataNode="dn1_$10-19" rule="device-imei-murmur"/>
<table name="floor_202506" dataNode="dn1_$10-19" rule="device-imei-murmur"/>
<table name="floor_202507" dataNode="dn1_$10-19" rule="device-imei-murmur"/>
<table name="floor_202508" dataNode="dn1_$10-19" rule="device-imei-murmur"/>
<table name="floor_202509" dataNode="dn1_$10-19" rule="device-imei-murmur"/>
<table name="floor_202510" dataNode="dn1_$10-19" rule="device-imei-murmur"/>
<table name="floor_202511" dataNode="dn1_$10-19" rule="device-imei-murmur"/>
<table name="floor_202512" dataNode="dn1_$10-19" rule="device-imei-murmur"/>
</schema>
<dataNode name="dn1_info" dataHost="host1" database="his_10"/>
<dataNode name="dn1_$10-19" dataHost="host1" database="his_$10-19"/>
rule.xml
存在自定义规则，需要新增规则，实际上一个库会存不同的表用不同的字段分库，所以是可以添加多个分片规则
<?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="rule1">
<rule>
<columns>id</columns>
<algorithm>func1</algorithm>
</rule>
</tableRule>
<tableRule name="sharding-by-date">
<rule>
<columns>createTime</columns>
<algorithm>partbyday</algorithm>
</rule>
</tableRule>
<tableRule name="rule2">
<rule>
<columns>user_id</columns>
<algorithm>func1</algorithm>
</rule>
</tableRule>
<tableRule name="sharding-by-intfile">
<rule>
<columns>sharding_id</columns>
<algorithm>hash-int</algorithm>
</rule>
</tableRule>
<tableRule name="auto-sharding-long">
<rule>
<columns>id</columns>
<algorithm>rang-long</algorithm>
</rule>
</tableRule>
<tableRule name="mod-long">
<rule>
<columns>id</columns>
<algorithm>mod-long</algorithm>
</rule>
</tableRule>
<tableRule name="sharding-by-murmur">
<rule>
<columns>id</columns>
<algorithm>murmur</algorithm>
</rule>
</tableRule>
<tableRule name="crc32slot">
<rule>
<columns>id</columns>
<algorithm>crc32slot</algorithm>
</rule>
</tableRule>
<tableRule name="sharding-by-month">
<rule>
<columns>create_time</columns>
<algorithm>partbymonth</algorithm>
</rule>
</tableRule>
<tableRule name="latest-month-calldate">
<rule>
<columns>calldate</columns>
<algorithm>latestMonth</algorithm>
</rule>
</tableRule>
<tableRule name="auto-sharding-rang-mod">
<rule>
<columns>id</columns>
<algorithm>rang-mod</algorithm>
</rule>
</tableRule>
<tableRule name="jch">
<rule>
<columns>id</columns>
<algorithm>jump-consistent-hash</algorithm>
</rule>
</tableRule>
<tableRule name="imei-murmur">
<rule>
<columns>imei</columns>
<algorithm>murmur</algorithm>
</rule>
</tableRule>
<tableRule name="user-id-murmur">
<rule>
<columns>id</columns>
<algorithm>rang-mod</algorithm>
</rule>
</tableRule>
<function name="murmur"
class="io.mycat.route.function.PartitionByMurmurHash">
<property name="seed">0</property><!-- 默认是0 -->
<property name="count">10</property><!-- 要分片的数据库节点数量，必须指定，否则没法分片 -->
<property name="virtualBucketTimes">160</property><!-- 一个实际的数据库节点被映射为这么多虚拟节点，默认是160倍，也就是虚拟节点数是物理节点数的160倍 -->
<!-- <property name="weightMapFile">weightMapFile</property> 节点的权重，没有指定权重的节点默认是1。以properties文件的格式填写，以从0开始到count-1的整数值也就是节点索引为key，以节点权重值为值。所有权重值必须是正整数，否则以1代替 -->
<!-- <property name="bucketMapPath">/etc/mycat/bucketMapPath</property>
用于测试时观察各物理节点与虚拟节点的分布情况，如果指定了这个属性，会把虚拟节点的murmur hash值与物理节点的映射按行输出到这个文件，没有默认值，如果不指定，就不会输出任何东西 -->
</function>
<function name="crc32slot"
class="io.mycat.route.function.PartitionByCRC32PreSlot">
<property name="count">2</property><!-- 要分片的数据库节点数量，必须指定，否则没法分片 -->
</function>
<function name="hash-int"
class="io.mycat.route.function.PartitionByFileMap">
<property name="mapFile">partition-hash-int.txt</property>
</function>
<function name="rang-long"
class="io.mycat.route.function.AutoPartitionByLong">
<property name="mapFile">autopartition-long.txt</property>
</function>
<function name="mod-long" class="io.mycat.route.function.PartitionByMod">
<!-- how many data nodes -->
<property name="count">3</property>
</function>
<function name="func1" class="io.mycat.route.function.PartitionByLong">
<property name="partitionCount">8</property>
<property name="partitionLength">128</property>
</function>
<function name="latestMonth"
class="io.mycat.route.function.LatestMonthPartion">
<property name="splitOneDay">24</property>
</function>
<function name="partbymonth"
class="io.mycat.route.function.PartitionByMonth">
<property name="dateFormat">yyyy-MM-dd</property>
<property name="sBeginDate">2025-01-01</property>
</function>
<function name="partbyday"
class="io.mycat.route.function.PartitionByDate">
<property name="dateFormat">yyyy-MM-dd</property>
<property name="sNaturalDay">0</property>
<property name="sBeginDate">2024-01-01</property>
<property name="sEndDate">2034-12-31</property>
<property name="sPartionDay">10</property>
</function>
<function name="rang-mod" class="io.mycat.route.function.PartitionByRangeMod">
<property name="mapFile">partition-range-mod.txt</property>
</function>
<function name="jump-consistent-hash" class="io.mycat.route.function.PartitionByJumpConsistentHash">
<property name="totalBuckets">3</property>
</function>
</mycat:rule>
partition-range-mod.txt、auto-sharding-rang-mod.txt，这两个文件是因为node定义错误，并且定义了20个，这个值必须要小于schemal.xml database个数，定义 his_10 - his_19 10个库，这个节点也需要小于等于10个
0M-600M=3
600M-1200M=3
1200M-1800M=4
第六步、再次重启docker-compose
docker-compose -f docker-compose.yml stop
docker-compose -f docker-compose.yml up -d
第七步、在MySQL建立 his_10 - his_19库，导入schemal.xml定义的表
码道开发者社区，聚焦华为云码道 CodeArts 代码智能体，沉淀 Agent、Skill、鸿蒙开发实战内容，供开发者查阅资料、交流技术、分享工程实践
更多推荐
19
0- 0
已为社区贡献1条内容
所有评论(0)