Home > Database > Mysql Tutorial > mysqlreport使用_MySQL

mysqlreport使用_MySQL

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB
Release: 2016-06-01 13:13:48
Original
1212 people have browsed it

mysqlreport是www.hackmysql.com开发的一款基于perl语言编写的状态报告工具, 它将show status 和 show innodb status的输出结果进行处理,使得输出信息的可读性更高。由于是perl编写的脚本,所以需要先安装perl环境,再与mysql数据库连接,因此还需要安装数据库接口DBI 和数据库驱动 DBD-Mysql.

安装DBI

yum install -y perl-DBI
Copy after login

安装mysqlreport

wget http://hackmysql.com/scripts/mysqlreport-3.5.tgztar zxvf mysqlreport-3.5.tgzcd mysqlreport-3.5perl mysqlreport -u root -password 12345
Copy after login

install_driver(mysql) failed: Can't locate DBD/mysql.pm in @INC (@INC contains: /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.8 /usr/lib/perl5/site_perl /usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.8 /usr/lib/perl5/vendor_perl /usr/lib/perl5/5.8.8/i386-linux-thread-multi /usr/lib/perl5/5.8.8 .) at (eval 8) line 3.
Perhaps the DBD::mysql perl module hasn't been fully installed,
or perhaps the capitalisation of 'mysql' isn't right.
Available drivers: DBM, ExampleP, File, Proxy, Sponge.
 at ./mysqlreport line 249

出现以上错误,原因是没有安装DBD-mysql

wget http://www.cpan.org/modules/by-module/DBD/DBD-mysql-4.020.tar.gzcd DBD-mysql-4.020perl Makefile.PL --mysql_config=/usr/local/mysql/bin/mysql_configmakemake install
Copy after login

把mysql的这个库文件路径添加进去

echo "/usr/local/mysql/lib/mysql" >> /etc/ld.so.confldconfig
Copy after login

再使用mysqlreport

perl mysqlreport -u root -password 12345
Copy after login

脚本有些小的bug,会出现以下错误信息

Use of uninitialized value in multiplication (*) at mysqlreport line 829.Use of uninitialized value in formline at mysqlreport line 1227.Use of uninitialized value in formline at mysqlreport line 1235.
Copy after login

829行修改成如下方式,则不再提示错误

my $is = @_;my $of = @_;return sprintf "%.2f", ($is * 100) / ($of ||= 1);
Copy after login

再分析1227和1235行错误

1227 $stats{'Innodb_buffer_pool_pages_latched'}, perc($stats{'Innodb_buffer_pool_pages_latched'}, $stats{'Innodb_buffer_pool_pages_total'})
Copy after login
1235 $stats{'Innodb_buffer_pool_read_ahead_seq'}, t($stats{'Innodb_buffer_pool_read_ahead_seq'})
Copy after login

查看mysql官方手册

Innodb_buffer_pool_pages_latched

The number of latched pages in InnoDB buffer pool. These are pages currently being read or written or that cannot be flushed or removed for some other reason. Calculation of this variable is expensive, so as of MySQL 5.1.28, it is available only when the UNIV_DEBUG system is defined at server build time.

5.1.28后不默认提供这个参数了。除非编译的时候强制指定。

Innodb_buffer_pool_read_ahead_seq

The number of sequential read-aheads initiated by InnoDB. This happens when InnoDB does a sequential full table scan. 

For InnoDB Plugin, this variable was removed in MySQL 5.1.41.

这个变量是InnoDB的存储引擎插件,在5.1.41以后就已经被移除,这里我的数据库是5.5.25

最后执行mysqlreport -u -password 12345看看,以下是部分输出结果的显示

wKiom1N5mgDxZjQIAAMwDbkujEA273.jpg

本文出自 “老徐的私房菜” 博客,谢绝转载!

Related labels:
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template