前提:
环境要求已安装JDK1.7+版本
已安装mysql客户端(yum install mysql)
操作系统IP:192.168.75.48
安装mycat
下载解压
wget http://dl.mycat.io/1.6.5/Mycat-server-1.6.5-release-20180122220033-linux.tar.gz
tar -zxvf Mycat-server-1.6.5-release-20180122220033-linux.tar.gz -C /usr/local/
cd /usr/local/mycat/conf
根据实际情况修改schema.xml,server.xml
例如:
schema.xml:
<?xml version="1.0"?>
<!DOCTYPE mycat:schema SYSTEM "schema.dtd">
<mycat:schema xmlns:mycat="http://io.mycat/">
<!-- phapp 是mycat的逻辑库名称,链接需要用的 -->
<schema name="xx_app" checkSQLschema="false" sqlMaxLimit="100" dataNode="dn1"></schema>
<schema name="xx_data" checkSQLschema="false" sqlMaxLimit="100" dataNode="dn2"></schema>
<schema name="xx_dubbo_monitor" checkSQLschema="false" sqlMaxLimit="100" dataNode="dn3"></schema>
<schema name="xx_log" checkSQLschema="false" sqlMaxLimit="100" dataNode="dn4"></schema>
<schema name="xx_mis" checkSQLschema="false" sqlMaxLimit="100" dataNode="dn5"></schema>
<schema name="xx_task" checkSQLschema="false" sqlMaxLimit="100" dataNode="dn6"></schema>
<!-- database 是MySQL数据库的库名 -->
<dataNode name="dn1" dataHost="192.168.75.94" database="xx_app" />
<dataNode name="dn2" dataHost="192.168.75.94" database="xx_data" />
<dataNode name="dn3" dataHost="192.168.75.94" database="xx_dubbo_monitor" />
<dataNode name="dn4" dataHost="192.168.75.94" database="xx_log" />
<dataNode name="dn5" dataHost="192.168.75.94" database="xx_mis" />
<dataNode name="dn6" dataHost="192.168.75.94" database="xx_task" />
<!--
dataNode节点中各属性说明:
name:指定逻辑数据节点名称;
dataHost:指定逻辑数据节点物理主机节点名称;
database:指定物理主机节点上。如果一个节点上有多个库,可使用表达式db$0-99, 表示指定0-99这100个数据库;
dataHost 节点中各属性说明:
name:物理主机节点名称;
maxCon:指定物理主机服务最大支持1000个连接;
minCon:指定物理主机服务最小保持10个连接;
writeType:指定写入类型;
0,只在writeHost节点写入;
1,在所有节点都写入。慎重开启,多节点写入顺序为默认写入根据配置顺序,第一个挂掉切换另一个;
dbType:指定数据库类型;
dbDriver:指定数据库驱动;
balance:指定物理主机服务的负载模式。
0,不开启读写分离机制;
1,全部的readHost与stand by writeHost参与select语句的负载均衡,简单的说,当双主双从模式(M1->S1,M2->S2,并且M1与 M2互为主备),正常情况下,M2,S1,S2都参与select语句的负载均衡;
2,所有的readHost与writeHost都参与select语句的负载均衡,也就是说,当系统的写操作压力不大的情况下,所有主机都可以承担负载均衡;
-->
<dataHost name="192.168.75.94" maxCon="1000" minCon="10" balance="3" writeType="0" dbType="mysql" dbDriver="native" switchType="1" slaveThreshold="100">
<heartbeat>show slave status</heartbeat>
<!-- 可以配置多个主从 -->
<writeHost host="hostM1" url="192.168.75.94:3306" user="xx_Corn_User" password="xxxxxxxx">
<!-- 可以配置多个从库 -->
<readHost host="hostS1" url="192.168.75.95:3306" user="xx_Corn_User" password="xxxxxxxx" />
</writeHost>
</dataHost>
</mycat:schema>
server.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: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="useHandshakeV10">1</property>
<property name="useSqlStat">1</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="sequnceHandlerType">2</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="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="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">1</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>-->
</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="xx_Corn_User" defaultAccount="true">
<property name="password">xxxxxxxx</property>
<property name="schemas">xx_app,xx_data,xx_dubbo_monitor,xx_log,xx_mis,xx_data,xx_task</property>
<!-- 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">xx_app</property>
<property name="readOnly">true</property>
</user>
</mycat:server>
修改环境变量
echo export PATH=$PATH:/usr/local/mycat/bin >>/etc/profile
echo export MYCAT_HOME=/usr/local/mycat >> /etc/profile
source /etc/profile
创建mycat用户
groupadd mycat -g 910
useradd mycat -g 910
chown -R mycat:mycat /usr/local/mycat
启动mycat
cd /usr/local/mycat/bin
./mycat start
命令行登陆
mysql -u xx_Corn_User -pxxxxxx -P8066 -h 127.0.0.1
安装zookeeper
下载解压
wget http://mirrors.hust.edu.cn/apache/zookeeper/zookeeper-3.4.6/zookeeper-3.4.6.tar.gz
tar -zxvf zookeeper-3.4.6.tar.gz -C /usr/local/
cd /usr/local/zookeeper-3.4.6/conf
cp zoo_sample.cfg zoo.cfg
启动zookeeper
cd /usr/local/zookeeper-3.4.6/bin/
./zkServer.sh start
安装mycat-eye
下载解压
wget https://raw.githubusercontent.com/MyCATApache/Mycat-download/master/mycat-web-1.0/Mycat-web-1.0-SNAPSHOT-20160617163048-linux.tar.gz
tar -zxvf Mycat-web-1.0-SNAPSHOT-20160617163048-linux.tar.gz -C /usr/local/
修改zookeeper地址
cd /usr/local/mycat-web/mycat-web/WEB-INF/classes
vi mycat.properties
zookeeper=localhost:2181 ->zookeeper=127.0.0.1:2181
启动mycat-eye
cd /usr/local/mycat-web
./start.sh &
访问mycat-eye
http://192.168.75.48:8082/mycat