環境規劃
Amoeba讀寫分離器 | 172.16.254.144/16 |
Mysql服務器(master) | 172.16.254.150/16 |
Mysql服務器(slave) | 172.16.254.151/16 |
[root@localhost mysql]# yum -y install mysql mysql-server
啓用二進制日誌,編輯/etc/my.cnf在[mysqld]下添加如下行:
log-bin = /var/lib/mysql/mysql-bin-log binlog_format=mixed server_id = 1
重啓mysqld,連接mysql,授權遠程複製賬戶
mysql> grant replication slave, replication client on *.* to 'repluser'@'172.16.%.%' identified by 'mypass';
查看當前正在使用的二進制日誌文件及位置
在slave上啓用中繼日誌及修改server_id,編輯/etc/my.cnf在[mysqld]下添加如下行:
relay-log = /var/lib/mysql/relay-bin server_id = 11
連接master服務器,並啓動複製功能
mysql> change master to master_host='172.16.254.150', master_user='repluser',master_password='mypass',master_log_file='mysql-bin-log.000002',master_log_pos=106; mysql> start slave;
查看Slave_IO、Slave_SQL線程是否爲yes
二、安裝配置Amoeba
安裝配置jdk
[root@localhost ~]chmod +x ./jdk-6u31-linux-x64-rpm.bin [root@localhost ~]./jdk-6u31-linux-x64-rpm.bin [root@localhost ~]# vim /etc/profile.d/java.sh 添加如下行: export JAVA_HOME=/usr/java/latest export PATH=$JAVA_HOME/bin:$PATH [root@localhost ~]# . /etc/profile.d/java.sh
安裝Amoeba
[root@localhost ~]# mkdir /usr/local/amoeba [root@localhost ~]# tar xf amoeba-mysql-binary-2.2.0.tar.gz -C /usr/local/amoeba/ [root@localhost ~]# cd /usr/local/amoeba/ [root@localhost ~]# bin/amoeba start
安裝mysql客戶端,驗證是否能夠連接
[root@localhost ~]# yum -y install mysql [root@localhost ~]# mysql -uroot -h172.16.254.144 -P8066 -p
編輯/usr/local/amoeba/conf/amoeba.xml主配置文件
編輯/usr/local/amoeba/conf/dbServers.xml配置文件,定義master和readservers
啓動amoeba使其運行在後臺,連接amoeba,使用tcpdump在master、slave服務器上抓包,創建一個數據庫,並多使用幾次查詢語句,驗證寫操作是否被調度至master(172.16.254.150),而讀操作會以輪叫的方式調度至master和slave,可以分攤mysql的讀請求
[root@localhost mysql]# tcpdump -i eth0 -nn -XX ip dst host 172.16.254.150 and tcp dst port 3306 [root@localhost mysql]# tcpdump -i eth0 -nn -XX ip dst host 172.16.254.151 and tcp dst port 3306