MySQL监控工具-orztop

 

先安装orzdba，链接：http://blog.itpub.net/28939273/viewspace-1875895/

安装依赖的包：
[root@hank-yoon servers]# yum install perl-TermReadKey.x86_64

否则报错如下：
[root@hank-yoon servers]# ./orztop -u=root -p='yoon' -S=/export/data/mysql/tmp/mysql.sock
Can't locate Term/ReadKey.pm in @INC (@INC contains: /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5 .) at ./orztop line 14.
BEGIN failed--compilation aborted at ./orztop line 14.

[root@hank-yoon servers]# yum search ReadKey
yum install perl-TermReadKey.x86_64

[root@hank-yoon servers]# ./orztop -help
==========================================================================================
Info  :
                Created By zhuxu@taobao.com
Usage :
Command line options :


        -help       Print Help Info. 
        -h,--host   Hostname/Ip to use for mysql connection.
        -u,--user   User        to use for mysql connection.
        -p,--pwd    Password    to use for mysql connection.
        -P,--port   Port        to use for mysql connection(default 3306). 


        -S,--socket Socket      to use for mysql connection.


        -t          Time(second) Interval.  


==========================================================================================

[root@hank-yoon servers]# ./orztop  -u=root -p='yoon' -S=/export/data/mysql/tmp/mysql.sock


信息中还包括了数据库的每秒的insert/update/delete/select，逻辑读，命中率，当前活动线程等，可以大致看到数据库的当前压力情况；
当你的实例出现性能瓶颈时，不妨用该工具看看，抓取一下当前正在跑的慢sql