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MySQL性能医生:OrzDBA
[root@even ~]# svn co http://code.taobao.org/svn/orzdba/trunk
A trunk/orzdba_rt_depend_perl_module.tar.gz
A trunk/orzdba
A trunk/orzdba工具使用说明.pdf
取出版本 4。
[root@even trunk]# chmod +x orzdba
需要在代码160行左右配置MySQL的相关验证信息,如username,password,host,port,sock等
㈠ 查看MySQL响应时间(rt)
先安装tcprstat
# wget http://github.com/downloads/Lowercases/tcprstat/tcprstat-static.v0.3.1.x86_64
# ln -sf /root/tcprstat-static.v0.3.1.x86_64 /usr/bin/tcprstat
在源码161行左右把 /usr/bin/tcprstat 加入默认读取的位置
再解压orzdba_rt_depend_perl_module.tar.gz,安装rt所依赖的perl模块
[root@localhost trunk]# ./orzdba -lazy -rt -S /home/mysql55/mysql/mysql.sock
注释:
count:此间隔内处理完成的请求数量
avg:此间隔内所有完成的请求,响应的平均时间
95_avg:此间隔内,95%的请求量的平均响应时间,单位微妙,该值较能体现MySQL Server的查询平均响应时间
㈡ 监控InnoDB的各项指标
[root@localhost trunk]# ./orzdba -innodb -S /home/mysql55/mysql/mysql.sock
㈢ 监控MySQL Server性能
[root@localhost trunk]# ./orzdba -mysql -S /home/mysql55/mysql/mysql.sock

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