MySQL监控工具之innotop

innotop是一个通过文本模式显示MySQL和InnoDB存储引擎的监测工具。innotop是用perl语言开发，这是它能更加灵活的使用在各种操作平台之上，它能详细的的监控出当前mysql和innodb存储引擎运行的状态，以便维护人员根据结果合理的优化数据库，让数据库更稳定更高效的运行，innotop依赖于系统的perl-ExtUtils-MakeMaker软件包。

1.安装perl依赖包

[root@linuxidc ~]# yum install perl-ExtUtils-MakeMaker
[root@linuxidc ~]# rpm -aq | grep perl-ExtUtils-MakeMaker
perl-ExtUtils-MakeMaker-6.55-136.el6_6.1.x86_64
[root@linuxidc ~]#

2.下载安装innotop监控工具
[root@linuxidc ~]# wget http://innotop.googlecode.com/files/innotop-1.9.0.tar.gz
[root@linuxidc ~]# tar xvf innotop-1.9.0.tar.gz -C /usr/local/
[root@linuxidc ~]# cd /usr/local/innotop-1.9.0/
[root@linuxidc innotop-1.9.0]# perl Makefile.PL
Checking if your kit is complete...
Looks good
Writing Makefile for innotop

[root@linuxidc innotop-1.9.0]# make install
cp innotop blib/script/innotop
/usr/bin/perl -MExtUtils::MY -e 'MY->fixin(shift)' -- blib/script/innotop
Manifying blib/man1/innotop.1
Installing /usr/local/share/man/man1/innotop.1
Installing /usr/local/bin/innotop
Appending installation info to /usr/lib64/perl5/perllocal.pod
[root@linuxidc innotop-1.9.0]# echo $?
0
[root@linuxidc innotop-1.9.0]#
 
3.innotop使用帮助和监控实例
[root@linuxidc innotop-1.9.0]# ./innotop  --help
Usage: innotop <options> <innodb-status-file>

  --[no]color  -C  Use terminal coloring (default)
  --config      -c  Config file to read
  --count            Number of updates before exiting
  --delay      -d  Delay between updates in seconds
  --help            Show this help message
  --host        -h  Connect to host
  --[no]inc    -i  Measure incremental differences
  --mode        -m  Operating mode to start in
  --nonint      -n  Non-interactive, output tab-separated fields
  --password    -p  Password to use for connection
  --port        -P  Port number to use for connection
  --skipcentral -s  Skip reading the central configuration file
  --socket      -S  MySQL socket to use for connection
  --spark            Length of status sparkline (default 10)
  --timestamp  -t  Print timestamp in -n mode (1: per iter; 2: per line)
  --user        -u  User for login if not current user
  --version          Output version information and exit
  --write      -w  Write running configuration into home directory if no config files were loaded

innotop is a MySQL and InnoDB transaction/status monitor, like 'top' for
MySQL.  It displays queries, InnoDB transactions, lock waits, deadlocks,
foreign key errors, open tables, replication status, buffer information,
row operations, logs, I/O operations, load graph, and more.  You can
monitor many servers at once with innotop.

[root@linuxidc innotop-1.9.0]# ./innotop  -u root -psystem -h localhost -S /tmp/mysql.sock
[RO] Dashboard (? for        help)            --输入?或htlp查看帮助信息
Uptime  MaxSQL  ReplLag  Cxns  Lock  QPS  QPS  Run  Run  Tbls  Repl  SQL

    6d                      1    0  0.40  ^_____  _____  551  Off     
   

输入?号可看帮助信息
Switch to a different mode:
  A  Dashboard        I  InnoDB I/O Info    Q  Query List
  B  InnoDB Buffers    K  InnoDB Lock Waits  R  InnoDB Row Ops
  C  Command Summary  L  Locks              S  Variables & Status
  D  InnoDB Deadlocks  M  Replication Status  T  InnoDB Txns
  F  InnoDB FK Err    O  Open Tables        U  User Statistics

Actions:
  d  Change refresh interval        p  Pause innotop
  k  Kill a query's connection      q  Quit innotop
  n  Switch to the next connection  x  Kill a query

Other:
 TAB  Switch to the next server group  /  Quickly filter what you see
  !  Show license and warranty        =  Toggle aggregation
  #  Select/create server groups      @  Select/create server connections
  $  Edit configuration settings      \  Clear quick-filters
Press any key to continue