首先说明一下amoeba 跟 MySQL proxy在读写分离的使用上面的区别:
在MySQL proxy 6.0版本 上面如果想要读写分离并且 读集群、写集群 机器比较多情况下,用mysql proxy 需要相当大的工作量,目前mysql proxy没有现成的 lua脚本。mysql proxy根本没有配置文件, lua脚本就是它的全部,当然lua是相当方便的。那么同样这种东西需要编写大量的脚本才能完成一 个复杂的配置。而Amoeba只需要进行相关的配置就可以满足需求。
假设有这样的使用场景,有三个数据库节点分别命名为Master、Slave1、Slave2如下:
Amoeba: Amoeba <192.168.14.129>
Master: Master <192.168.14.131> (可读写)
Slaves:Slave1 <192.168.14.132>、Slave2<192.168.14.133> (2个平等的数据库。只读/负载均衡)
在 主从数据库 的复制的部分, 任然需要使用数据库自己的复制机制。 Amoeba 不提供复制功能。
1. 起动数据库的主从复制功能。
a. 修改配置文件
master.cnf
- server-id = 1 #主数据库标志
- # 增加 日志文件, 用于验证读写分离
- log = /home/mysql/mysql/log/mysql.log
slave1.cnf
- server-id = 2
- # 增加 日志文件, 用于验证读写分离
- log = /home/mysql/mysql/log/mysql.log
slave2.cnf
- server-id = 3
- # 增加 日志文件, 用于验证读写分离
- log = /home/mysql/mysql/log/mysql.log
b. Master 中 创建两个 只读权限 的用户。 用户名均为:repl_user 密码均为:copy 分别开放给 slave1, slave2
- mysql> grant replication slave on *.* to repl_user@192.168.14.132 identified by 'copy';
- mysql> grant replication slave on *.* to repl_user@192.168.14.133 identified by 'copy';
c. 查看 Master 信息
- mysql> show master status;
- +------------------+----------+--------------+------------------+
- | File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
- +------------------+----------+--------------+------------------+
- | mysql-bin.000017 | 2009 | | |
- +------------------+----------+--------------+------------------+
- 1 row in set (0.00 sec)
d. Slave1 ,Slave2 中 启动 Master - Slave 复制功能。
分别执行以下命令
- mysql> slave stop;
- Query OK, 0 rows affected (0.02 sec)
- mysql> change master to
- -> master_host='192.168.14.131',
- -> master_user='repl_user',
- -> master_password='copy',
- -> master_log_file='mysql-bin.000017',
- -> master_log_pos=2009;
- Query OK, 0 rows affected (0.03 sec)
- mysql> start slave;
- Query OK, 0 rows affected (0.00 sec)
2. Amoeba 读写分离的配置
a. Master , Slave1 ,Slave2 中开放权限给 Amoeba 访问。
在 Master , Slave1 , Slave2 中分别执行
- mysql> grant all on test.* to test_user@192.168.14.129 indentified by '1234';
Amoeba 访问三个数据库的账号密码相同。
b. 修改 Amoeba 的配置文件
配置文件详细说明请查看 官方文档:http://docs.hexnova.com/amoeba/rw-splitting.html
dbServer.xml
- <?xml version="1.0" encoding="gbk"?>
- <!DOCTYPE amoeba:dbServers SYSTEM "dbserver.dtd">
- <amoeba:dbServers xmlns:amoeba="http://amoeba.meidusa.com/">
- <!--
- Each dbServer needs to be configured into a Pool,
- If you need to configure multiple dbServer with load balancing that can be simplified by the following configuration:
- add attribute with name virtual = "true" in dbServer, but the configuration does not allow the element with name factoryConfig
- such as 'multiPool' dbServer
- -->
- <!-- 数据库连接配置的公共部分 -->
- <dbServer name="abstractServer" abstractive="true">
- <factoryConfig class="com.meidusa.amoeba.mysql.net.MysqlServerConnectionFactory">
- <property name="manager">${defaultManager}</property>
- <property name="sendBufferSize">64</property>
- <property name="receiveBufferSize">128</property>
- <!-- mysql port -->
- <property name="port">3306</property>
- <!-- mysql schema -->
- <property name="schema">test</property>
- <!-- mysql user -->
- <property name="user">test_user</property>
- <!-- mysql password -->
- <property name="password">1234</property>
- </factoryConfig>
- <poolConfig class="com.meidusa.amoeba.net.poolable.PoolableObjectPool">
- <property name="maxActive">500</property>
- <property name="maxIdle">500</property>
- <property name="minIdle">10</property>
- <property name="minEvictableIdleTimeMillis">600000</property>
- <property name="timeBetweenEvictionRunsMillis">600000</property>
- <property name="testOnBorrow">true</property>
- <property name="testWhileIdle">true</property>
- </poolConfig>
- </dbServer>
- <!-- Master ,Slave1, Slave2 的独立部分,也就只有 IP 了 -->
- <dbServer name="master" parent="abstractServer">
- <factoryConfig>
- <!-- mysql ip -->
- <property name="ipAddress">192.168.14.131</property>
- </factoryConfig>
- </dbServer>
- <dbServer name="slave1" parent="abstractServer">
- <factoryConfig>
- <!-- mysql ip -->
- <property name="ipAddress">192.168.14.132</property>
- </factoryConfig>
- </dbServer>
- <dbServer name="slave2" parent="abstractServer">
- <factoryConfig>
- <!-- mysql ip -->
- <property name="ipAddress">192.168.14.133</property>
- </factoryConfig>
- </dbServer>
- <!-- 数据库池,虚拟服务器,实现读取的负载均衡 -->
- <dbServer name="slaves" virtual="true">
- <poolConfig class="com.meidusa.amoeba.server.MultipleServerPool">
- <!-- Load balancing strategy: 1=ROUNDROBIN , 2=WEIGHTBASED , 3=HA-->
- <property name="loadbalance">1</property>
- <!-- Separated by commas,such as: server1,server2,server1 -->
- <property name="poolNames">slave1,slave2</property>
- </poolConfig>
- </dbServer>
- </amoeba:dbServers>
amoeba.xml
- <?xml version="1.0" encoding="gbk"?>
- <!DOCTYPE amoeba:configuration SYSTEM "amoeba.dtd">
- <amoeba:configuration xmlns:amoeba="http://amoeba.meidusa.com/">
- <proxy>
- <!-- service class must implements com.meidusa.amoeba.service.Service -->
- <service name="Amoeba for Mysql" class="com.meidusa.amoeba.net.ServerableConnectionManager">
- <!-- Amoeba 端口号 -->
- <property name="port">8066</property>
- <!-- bind ipAddress -->
- <!--
- <property name="ipAddress">127.0.0.1</property>
- -->
- <property name="manager">${clientConnectioneManager}</property>
- <property name="connectionFactory">
- <bean class="com.meidusa.amoeba.mysql.net.MysqlClientConnectionFactory">
- <property name="sendBufferSize">128</property>
- <property name="receiveBufferSize">64</property>
- </bean>
- </property>
- <property name="authenticator">
- <bean class="com.meidusa.amoeba.mysql.server.MysqlClientAuthenticator">
- <!-- Amoeba 账号,密码 -->
- <property name="user">root</property>
- <property name="password">root</property>
- <property name="filter">
- <bean class="com.meidusa.amoeba.server.IPAccessController">
- <property name="ipFile">${amoeba.home}/conf/access_list.conf</property>
- </bean>
- </property>
- </bean>
- </property>
- </service>
- <!-- server class must implements com.meidusa.amoeba.service.Service -->
- <service name="Amoeba Monitor Server" class="com.meidusa.amoeba.monitor.MonitorServer">
- <!-- port -->
- <!-- default value: random number
- <property name="port">9066</property>
- -->
- <!-- bind ipAddress -->
- <property name="ipAddress">127.0.0.1</property>
- <property name="daemon">true</property>
- <property name="manager">${clientConnectioneManager}</property>
- <property name="connectionFactory">
- <bean class="com.meidusa.amoeba.monitor.net.MonitorClientConnectionFactory"></bean>
- </property>
- </service>
- <runtime class="com.meidusa.amoeba.mysql.context.MysqlRuntimeContext">
- <!-- proxy server net IO Read thread size -->
- <property name="readThreadPoolSize">20</property>
- <!-- proxy server client process thread size -->
- <property name="clientSideThreadPoolSize">30</property>
- <!-- mysql server data packet process thread size -->
- <property name="serverSideThreadPoolSize">30</property>
- <!-- per connection cache prepared statement size -->
- <property name="statementCacheSize">500</property>
- <!-- query timeout( default: 60 second , TimeUnit:second) -->
- <property name="queryTimeout">60</property>
- </runtime>
- </proxy>
- <!--
- Each ConnectionManager will start as thread
- manager responsible for the Connection IO read , Death Detection
- -->
- <connectionManagerList>
- <connectionManager name="clientConnectioneManager" class="com.meidusa.amoeba.net.MultiConnectionManagerWrapper">
- <property name="subManagerClassName">com.meidusa.amoeba.net.ConnectionManager</property>
- <!--
- default value is avaliable Processors
- <property name="processors">5</property>
- -->
- </connectionManager>
- <connectionManager name="defaultManager" class="com.meidusa.amoeba.net.MultiConnectionManagerWrapper">
- <property name="subManagerClassName">com.meidusa.amoeba.net.AuthingableConnectionManager</property>
- <!--
- default value is avaliable Processors
- <property name="processors">5</property>
- -->
- </connectionManager>
- </connectionManagerList>
- <!-- default using file loader -->
- <dbServerLoader class="com.meidusa.amoeba.context.DBServerConfigFileLoader">
- <property name="configFile">${amoeba.home}/conf/dbServers.xml</property>
- </dbServerLoader>
- <queryRouter class="com.meidusa.amoeba.mysql.parser.MysqlQueryRouter">
- <property name="ruleLoader">
- <bean class="com.meidusa.amoeba.route.TableRuleFileLoader">
- <property name="ruleFile">${amoeba.home}/conf/rule.xml</property>
- <property name="functionFile">${amoeba.home}/conf/ruleFunctionMap.xml</property>
- </bean>
- </property>
- <property name="sqlFunctionFile">${amoeba.home}/conf/functionMap.xml</property>
- <property name="LRUMapSize">1500</property>
- <!-- 默认数据库,主数据库 -->
- <property name="defaultPool">master</property>
- <!-- 写数据库 -->
- <property name="writePool">master</property>
- <!-- 读数据库,dbServer.xml 中配置的 虚拟数据库,数据库池 -->
- <property name="readPool">slaves</property>
- <property name="needParse">true</property>
- </queryRouter>
- </amoeba:configuration>
rule.xml
- <?xml version="1.0" encoding="gbk"?>
- <!DOCTYPE amoeba:rule SYSTEM "rule.dtd">
- <amoeba:rule xmlns:amoeba="http://amoeba.meidusa.com/">
- <tableRule name="message" schema="test" defaultPools="server1">
- </tableRule>
- </amoeba:rule>
不需要 数据库分片时,不用配置。 但是不能没有 tableRule 元素, 否则报错。 随便写个空规则就行了。
3. 测试读写分离
a. 在 Master , Slave1 , Slave2 中分别查看 日志文件: mysql.log
- tail -f ./log/mysql.log
b. 启动 Amoeba, 使用 Mysql GUI Tools 连接 Amoeba
执行以上几个命令。 查看日志内容。
Master mysql.log
- [mysql@prx1 mysql]$ tail -f log/mysql.log
- 370 Query SET SESSION sql_mode=''
- 370 Query SET NAMES utf8
- 370 Query SHOW FULL TABLES
- 370 Query SHOW COLUMNS FROM `t_message`
- 370 Query SHOW COLUMNS FROM `t_user`
- 370 Query SHOW PROCEDURE STATUS
- 370 Query SHOW FUNCTION STATUS
- 110813 15:21:11 370 Query SHOW VARIABLES LIKE 'character_set_server'
- 370 Query SHOW FULL COLUMNS FROM `test`.`t_message`
- 110813 15:21:12 370 Query SHOW CREATE TABLE `test`.`t_message`
- 110813 15:22:40 374 Connect test_user@192.168.14.129 on test
- 375 Connect test_user@192.168.14.129 on test
- 376 Connect test_user@192.168.14.129 on test
- 110813 15:23:40 370 Query insert into t_message values(1, 'c1')
- 110813 15:24:07 377 Connect test_user@192.168.14.129 on test
- 378 Connect test_user@192.168.14.129 on test
- 379 Connect test_user@192.168.14.129 on test
- 110813 15:24:15 370 Query insert into t_user values(8, 'n8', 'p8')
- 110813 15:24:24 370 Query SHOW FULL COLUMNS FROM `test`.`t_user`
- 370 Query SHOW CREATE TABLE `test`.`t_user`
- 110813 15:24:35 370 Query SHOW FULL COLUMNS FROM `test`.`t_message`
- 370 Query SHOW CREATE TABLE `test`.`t_message`
Slave1 mysql.log
- [mysql@prx2 mysql]$ tail -f log/mysql.log
- 317 Connect test_user@192.168.14.129 on test
- 318 Connect test_user@192.168.14.129 on test
- 110813 15:35:30 315 Query SELECT @@sql_mode
- 110813 15:35:32 315 Query SELECT @@sql_mode
- 110813 15:35:44 315 Query SELECT @@SQL_MODE
- 110813 15:35:46 315 Query SELECT @@SQL_MODE
- 110813 15:37:18 319 Connect test_user@192.168.14.129 on test
- 320 Connect test_user@192.168.14.129 on test
- 110813 15:37:19 321 Connect test_user@192.168.14.129 on test
- 110813 15:37:26 246 Quit
- 110813 15:38:21 315 Query SELECT @@SQL_MODE
- 110813 15:38:22 42 Query BEGIN
- 42 Query insert into t_message values(1, 'c1')
- 42 Query COMMIT /* implicit, from Xid_log_event */
- 110813 15:38:50 322 Connect test_user@192.168.14.129 on test
- 323 Connect test_user@192.168.14.129 on test
- 324 Connect test_user@192.168.14.129 on test
- 110813 15:38:58 42 Query BEGIN
- 42 Query insert into t_user values(8, 'n8', 'p8')
- 42 Query COMMIT /* implicit, from Xid_log_event */
- 110813 15:39:08 315 Query SELECT @@SQL_MODE
- 110813 15:39:19 315 Query SELECT @@SQL_MODE
- 110813 15:44:08 325 Connect test_user@192.168.14.129 on test
- 326 Connect test_user@192.168.14.129 on test
- 327 Connect test_user@192.168.14.129 on test
Slave2 mysql.log
- [mysql@prx3 mysql]$ tail -f log/mysql.log
- 110813 15:35:08 305 Connect test_user@192.168.14.129 on test
- 306 Connect test_user@192.168.14.129 on test
- 307 Connect test_user@192.168.14.129 on test
- 110813 15:35:31 304 Query SELECT @@sql_mode
- 304 Query SELECT @@sql_mode
- 110813 15:35:44 304 Query SELECT @@SQL_MODE
- 110813 15:35:46 304 Query SELECT * FROM t_message t
- 110813 15:37:18 308 Connect test_user@192.168.14.129 on test
- 309 Connect test_user@192.168.14.129 on test
- 310 Connect test_user@192.168.14.129 on test
- 110813 15:38:21 8 Query BEGIN
- 8 Query insert into t_message values(1, 'c1')
- 8 Query COMMIT /* implicit, from Xid_log_event */
- 110813 15:38:50 311 Connect test_user@192.168.14.129 on test
- 312 Connect test_user@192.168.14.129 on test
- 313 Connect test_user@192.168.14.129 on test
- 110813 15:38:58 304 Query SELECT @@SQL_MODE
- 8 Query BEGIN
- 8 Query insert into t_user values(8, 'n8', 'p8')
- 8 Query COMMIT /* implicit, from Xid_log_event */
- 110813 15:39:08 304 Query select * from t_user
- 110813 15:39:19 304 Query select * from t_message
- 110813 15:44:08 314 Connect test_user@192.168.14.129 on test
- 315 Connect test_user@192.168.14.129 on test
- 316 Connect test_user@192.168.14.129 on test
从日志中可以看出。
在 Master mysql.log 中,只执行了 insert into 命令。
在 Slave1 中,只是复制了 insert into 命令, 是主从复制的结果
在 Slave2 中, 复制了 insert into 命令,同时还执行了 select 命令。
说明,主从分离已经成功。
首先说明一下amoeba 跟 MySQL proxy在读写分离的使用上面的区别:
在MySQL proxy 6.0版本 上面如果想要读写分离并且 读集群、写集群 机器比较多情况下,用mysql proxy 需要相当大的工作量,目前mysql proxy没有现成的 lua脚本。mysql proxy根本没有配置文件, lua脚本就是它的全部,当然lua是相当方便的。那么同样这种东西需要编写大量的脚本才能完成一 个复杂的配置。而Amoeba只需要进行相关的配置就可以满足需求。
假设有这样的使用场景,有三个数据库节点分别命名为Master、Slave1、Slave2如下:
Amoeba: Amoeba <192.168.14.129>
Master: Master <192.168.14.131> (可读写)
Slaves:Slave1 <192.168.14.132>、Slave2<192.168.14.133> (2个平等的数据库。只读/负载均衡)
在 主从数据库 的复制的部分, 任然需要使用数据库自己的复制机制。 Amoeba 不提供复制功能。
1. 起动数据库的主从复制功能。
a. 修改配置文件
master.cnf
- server-id = 1 #主数据库标志
- # 增加 日志文件, 用于验证读写分离
- log = /home/mysql/mysql/log/mysql.log
slave1.cnf
- server-id = 2
- # 增加 日志文件, 用于验证读写分离
- log = /home/mysql/mysql/log/mysql.log
slave2.cnf
- server-id = 3
- # 增加 日志文件, 用于验证读写分离
- log = /home/mysql/mysql/log/mysql.log
b. Master 中 创建两个 只读权限 的用户。 用户名均为:repl_user 密码均为:copy 分别开放给 slave1, slave2
- mysql> grant replication slave on *.* to repl_user@192.168.14.132 identified by 'copy';
- mysql> grant replication slave on *.* to repl_user@192.168.14.133 identified by 'copy';
c. 查看 Master 信息
- mysql> show master status;
- +------------------+----------+--------------+------------------+
- | File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
- +------------------+----------+--------------+------------------+
- | mysql-bin.000017 | 2009 | | |
- +------------------+----------+--------------+------------------+
- 1 row in set (0.00 sec)
d. Slave1 ,Slave2 中 启动 Master - Slave 复制功能。
分别执行以下命令
- mysql> slave stop;
- Query OK, 0 rows affected (0.02 sec)
- mysql> change master to
- -> master_host='192.168.14.131',
- -> master_user='repl_user',
- -> master_password='copy',
- -> master_log_file='mysql-bin.000017',
- -> master_log_pos=2009;
- Query OK, 0 rows affected (0.03 sec)
- mysql> start slave;
- Query OK, 0 rows affected (0.00 sec)
2. Amoeba 读写分离的配置
a. Master , Slave1 ,Slave2 中开放权限给 Amoeba 访问。
在 Master , Slave1 , Slave2 中分别执行
- mysql> grant all on test.* to test_user@192.168.14.129 indentified by '1234';
Amoeba 访问三个数据库的账号密码相同。
b. 修改 Amoeba 的配置文件
配置文件详细说明请查看 官方文档:http://docs.hexnova.com/amoeba/rw-splitting.html
dbServer.xml
- <?xml version="1.0" encoding="gbk"?>
- <!DOCTYPE amoeba:dbServers SYSTEM "dbserver.dtd">
- <amoeba:dbServers xmlns:amoeba="http://amoeba.meidusa.com/">
- <!--
- Each dbServer needs to be configured into a Pool,
- If you need to configure multiple dbServer with load balancing that can be simplified by the following configuration:
- add attribute with name virtual = "true" in dbServer, but the configuration does not allow the element with name factoryConfig
- such as 'multiPool' dbServer
- -->
- <!-- 数据库连接配置的公共部分 -->
- <dbServer name="abstractServer" abstractive="true">
- <factoryConfig class="com.meidusa.amoeba.mysql.net.MysqlServerConnectionFactory">
- <property name="manager">${defaultManager}</property>
- <property name="sendBufferSize">64</property>
- <property name="receiveBufferSize">128</property>
- <!-- mysql port -->
- <property name="port">3306</property>
- <!-- mysql schema -->
- <property name="schema">test</property>
- <!-- mysql user -->
- <property name="user">test_user</property>
- <!-- mysql password -->
- <property name="password">1234</property>
- </factoryConfig>
- <poolConfig class="com.meidusa.amoeba.net.poolable.PoolableObjectPool">
- <property name="maxActive">500</property>
- <property name="maxIdle">500</property>
- <property name="minIdle">10</property>
- <property name="minEvictableIdleTimeMillis">600000</property>
- <property name="timeBetweenEvictionRunsMillis">600000</property>
- <property name="testOnBorrow">true</property>
- <property name="testWhileIdle">true</property>
- </poolConfig>
- </dbServer>
- <!-- Master ,Slave1, Slave2 的独立部分,也就只有 IP 了 -->
- <dbServer name="master" parent="abstractServer">
- <factoryConfig>
- <!-- mysql ip -->
- <property name="ipAddress">192.168.14.131</property>
- </factoryConfig>
- </dbServer>
- <dbServer name="slave1" parent="abstractServer">
- <factoryConfig>
- <!-- mysql ip -->
- <property name="ipAddress">192.168.14.132</property>
- </factoryConfig>
- </dbServer>
- <dbServer name="slave2" parent="abstractServer">
- <factoryConfig>
- <!-- mysql ip -->
- <property name="ipAddress">192.168.14.133</property>
- </factoryConfig>
- </dbServer>
- <!-- 数据库池,虚拟服务器,实现读取的负载均衡 -->
- <dbServer name="slaves" virtual="true">
- <poolConfig class="com.meidusa.amoeba.server.MultipleServerPool">
- <!-- Load balancing strategy: 1=ROUNDROBIN , 2=WEIGHTBASED , 3=HA-->
- <property name="loadbalance">1</property>
- <!-- Separated by commas,such as: server1,server2,server1 -->
- <property name="poolNames">slave1,slave2</property>
- </poolConfig>
- </dbServer>
- </amoeba:dbServers>
amoeba.xml
- <?xml version="1.0" encoding="gbk"?>
- <!DOCTYPE amoeba:configuration SYSTEM "amoeba.dtd">
- <amoeba:configuration xmlns:amoeba="http://amoeba.meidusa.com/">
- <proxy>
- <!-- service class must implements com.meidusa.amoeba.service.Service -->
- <service name="Amoeba for Mysql" class="com.meidusa.amoeba.net.ServerableConnectionManager">
- <!-- Amoeba 端口号 -->
- <property name="port">8066</property>
- <!-- bind ipAddress -->
- <!--
- <property name="ipAddress">127.0.0.1</property>
- -->
- <property name="manager">${clientConnectioneManager}</property>
- <property name="connectionFactory">
- <bean class="com.meidusa.amoeba.mysql.net.MysqlClientConnectionFactory">
- <property name="sendBufferSize">128</property>
- <property name="receiveBufferSize">64</property>
- </bean>
- </property>
- <property name="authenticator">
- <bean class="com.meidusa.amoeba.mysql.server.MysqlClientAuthenticator">
- <!-- Amoeba 账号,密码 -->
- <property name="user">root</property>
- <property name="password">root</property>
- <property name="filter">
- <bean class="com.meidusa.amoeba.server.IPAccessController">
- <property name="ipFile">${amoeba.home}/conf/access_list.conf</property>
- </bean>
- </property>
- </bean>
- </property>
- </service>
- <!-- server class must implements com.meidusa.amoeba.service.Service -->
- <service name="Amoeba Monitor Server" class="com.meidusa.amoeba.monitor.MonitorServer">
- <!-- port -->
- <!-- default value: random number
- <property name="port">9066</property>
- -->
- <!-- bind ipAddress -->
- <property name="ipAddress">127.0.0.1</property>
- <property name="daemon">true</property>
- <property name="manager">${clientConnectioneManager}</property>
- <property name="connectionFactory">
- <bean class="com.meidusa.amoeba.monitor.net.MonitorClientConnectionFactory"></bean>
- </property>
- </service>
- <runtime class="com.meidusa.amoeba.mysql.context.MysqlRuntimeContext">
- <!-- proxy server net IO Read thread size -->
- <property name="readThreadPoolSize">20</property>
- <!-- proxy server client process thread size -->
- <property name="clientSideThreadPoolSize">30</property>
- <!-- mysql server data packet process thread size -->
- <property name="serverSideThreadPoolSize">30</property>
- <!-- per connection cache prepared statement size -->
- <property name="statementCacheSize">500</property>
- <!-- query timeout( default: 60 second , TimeUnit:second) -->
- <property name="queryTimeout">60</property>
- </runtime>
- </proxy>
- <!--
- Each ConnectionManager will start as thread
- manager responsible for the Connection IO read , Death Detection
- -->
- <connectionManagerList>
- <connectionManager name="clientConnectioneManager" class="com.meidusa.amoeba.net.MultiConnectionManagerWrapper">
- <property name="subManagerClassName">com.meidusa.amoeba.net.ConnectionManager</property>
- <!--
- default value is avaliable Processors
- <property name="processors">5</property>
- -->
- </connectionManager>
- <connectionManager name="defaultManager" class="com.meidusa.amoeba.net.MultiConnectionManagerWrapper">
- <property name="subManagerClassName">com.meidusa.amoeba.net.AuthingableConnectionManager</property>
- <!--
- default value is avaliable Processors
- <property name="processors">5</property>
- -->
- </connectionManager>
- </connectionManagerList>
- <!-- default using file loader -->
- <dbServerLoader class="com.meidusa.amoeba.context.DBServerConfigFileLoader">
- <property name="configFile">${amoeba.home}/conf/dbServers.xml</property>
- </dbServerLoader>
- <queryRouter class="com.meidusa.amoeba.mysql.parser.MysqlQueryRouter">
- <property name="ruleLoader">
- <bean class="com.meidusa.amoeba.route.TableRuleFileLoader">
- <property name="ruleFile">${amoeba.home}/conf/rule.xml</property>
- <property name="functionFile">${amoeba.home}/conf/ruleFunctionMap.xml</property>
- </bean>
- </property>
- <property name="sqlFunctionFile">${amoeba.home}/conf/functionMap.xml</property>
- <property name="LRUMapSize">1500</property>
- <!-- 默认数据库,主数据库 -->
- <property name="defaultPool">master</property>
- <!-- 写数据库 -->
- <property name="writePool">master</property>
- <!-- 读数据库,dbServer.xml 中配置的 虚拟数据库,数据库池 -->
- <property name="readPool">slaves</property>
- <property name="needParse">true</property>
- </queryRouter>
- </amoeba:configuration>
rule.xml
- <?xml version="1.0" encoding="gbk"?>
- <!DOCTYPE amoeba:rule SYSTEM "rule.dtd">
- <amoeba:rule xmlns:amoeba="http://amoeba.meidusa.com/">
- <tableRule name="message" schema="test" defaultPools="server1">
- </tableRule>
- </amoeba:rule>
不需要 数据库分片时,不用配置。 但是不能没有 tableRule 元素, 否则报错。 随便写个空规则就行了。
3. 测试读写分离
a. 在 Master , Slave1 , Slave2 中分别查看 日志文件: mysql.log
- tail -f ./log/mysql.log
b. 启动 Amoeba, 使用 Mysql GUI Tools 连接 Amoeba
执行以上几个命令。 查看日志内容。
Master mysql.log
- [mysql@prx1 mysql]$ tail -f log/mysql.log
- 370 Query SET SESSION sql_mode=''
- 370 Query SET NAMES utf8
- 370 Query SHOW FULL TABLES
- 370 Query SHOW COLUMNS FROM `t_message`
- 370 Query SHOW COLUMNS FROM `t_user`
- 370 Query SHOW PROCEDURE STATUS
- 370 Query SHOW FUNCTION STATUS
- 110813 15:21:11 370 Query SHOW VARIABLES LIKE 'character_set_server'
- 370 Query SHOW FULL COLUMNS FROM `test`.`t_message`
- 110813 15:21:12 370 Query SHOW CREATE TABLE `test`.`t_message`
- 110813 15:22:40 374 Connect test_user@192.168.14.129 on test
- 375 Connect test_user@192.168.14.129 on test
- 376 Connect test_user@192.168.14.129 on test
- 110813 15:23:40 370 Query insert into t_message values(1, 'c1')
- 110813 15:24:07 377 Connect test_user@192.168.14.129 on test
- 378 Connect test_user@192.168.14.129 on test
- 379 Connect test_user@192.168.14.129 on test
- 110813 15:24:15 370 Query insert into t_user values(8, 'n8', 'p8')
- 110813 15:24:24 370 Query SHOW FULL COLUMNS FROM `test`.`t_user`
- 370 Query SHOW CREATE TABLE `test`.`t_user`
- 110813 15:24:35 370 Query SHOW FULL COLUMNS FROM `test`.`t_message`
- 370 Query SHOW CREATE TABLE `test`.`t_message`
Slave1 mysql.log
- [mysql@prx2 mysql]$ tail -f log/mysql.log
- 317 Connect test_user@192.168.14.129 on test
- 318 Connect test_user@192.168.14.129 on test
- 110813 15:35:30 315 Query SELECT @@sql_mode
- 110813 15:35:32 315 Query SELECT @@sql_mode
- 110813 15:35:44 315 Query SELECT @@SQL_MODE
- 110813 15:35:46 315 Query SELECT @@SQL_MODE
- 110813 15:37:18 319 Connect test_user@192.168.14.129 on test
- 320 Connect test_user@192.168.14.129 on test
- 110813 15:37:19 321 Connect test_user@192.168.14.129 on test
- 110813 15:37:26 246 Quit
- 110813 15:38:21 315 Query SELECT @@SQL_MODE
- 110813 15:38:22 42 Query BEGIN
- 42 Query insert into t_message values(1, 'c1')
- 42 Query COMMIT /* implicit, from Xid_log_event */
- 110813 15:38:50 322 Connect test_user@192.168.14.129 on test
- 323 Connect test_user@192.168.14.129 on test
- 324 Connect test_user@192.168.14.129 on test
- 110813 15:38:58 42 Query BEGIN
- 42 Query insert into t_user values(8, 'n8', 'p8')
- 42 Query COMMIT /* implicit, from Xid_log_event */
- 110813 15:39:08 315 Query SELECT @@SQL_MODE
- 110813 15:39:19 315 Query SELECT @@SQL_MODE
- 110813 15:44:08 325 Connect test_user@192.168.14.129 on test
- 326 Connect test_user@192.168.14.129 on test
- 327 Connect test_user@192.168.14.129 on test
Slave2 mysql.log
- [mysql@prx3 mysql]$ tail -f log/mysql.log
- 110813 15:35:08 305 Connect test_user@192.168.14.129 on test
- 306 Connect test_user@192.168.14.129 on test
- 307 Connect test_user@192.168.14.129 on test
- 110813 15:35:31 304 Query SELECT @@sql_mode
- 304 Query SELECT @@sql_mode
- 110813 15:35:44 304 Query SELECT @@SQL_MODE
- 110813 15:35:46 304 Query SELECT * FROM t_message t
- 110813 15:37:18 308 Connect test_user@192.168.14.129 on test
- 309 Connect test_user@192.168.14.129 on test
- 310 Connect test_user@192.168.14.129 on test
- 110813 15:38:21 8 Query BEGIN
- 8 Query insert into t_message values(1, 'c1')
- 8 Query COMMIT /* implicit, from Xid_log_event */
- 110813 15:38:50 311 Connect test_user@192.168.14.129 on test
- 312 Connect test_user@192.168.14.129 on test
- 313 Connect test_user@192.168.14.129 on test
- 110813 15:38:58 304 Query SELECT @@SQL_MODE
- 8 Query BEGIN
- 8 Query insert into t_user values(8, 'n8', 'p8')
- 8 Query COMMIT /* implicit, from Xid_log_event */
- 110813 15:39:08 304 Query select * from t_user
- 110813 15:39:19 304 Query select * from t_message
- 110813 15:44:08 314 Connect test_user@192.168.14.129 on test
- 315 Connect test_user@192.168.14.129 on test
- 316 Connect test_user@192.168.14.129 on test
从日志中可以看出。
在 Master mysql.log 中,只执行了 insert into 命令。
在 Slave1 中,只是复制了 insert into 命令, 是主从复制的结果
在 Slave2 中, 复制了 insert into 命令,同时还执行了 select 命令。
说明,主从分离已经成功。