Innotop的安装和使用

功能特点
1.显示当前innodb的全部事务列表；
2.显示当前正运行着的查询；
3.显示当前锁和锁等等的列表；
4.服务器状态和变量的摘要信息 显示了数值的相对变化幅度；
5.有多种模式可用来显示Innodb 内部信息，如缓冲区、死锁、外键错误、I/O情况、行操作、信号量等。
6.复制健康，将主机和从机的状态显示一起；
7.有一个显示任意服务器变量的模式；
8.服务器组可以帮你更方便的组织多台服务器；
9.在命令行脚本下可以使用非交互模式。

下载地址
https://github.com/innotop/innotop

安装

# unzip innotop-master.zip
# cd innotop-master
# perl Makefile.PL
Checking if your kit is complete...
Looks good
Warning: prerequisite Term::ReadKey 2.1 not found.
Writing Makefile for innotop
报以上错误，缺少ReadKey包。

# yum search ReadKey
# yum install perl-TermReadKey -y
# perl Makefile.PL
# 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

　　

查看帮助

# innotop --help
Usage: innotop <options> <innodb-status-file>

  --askpass          Prompt for a password when connecting to MySQL
  --[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.

　　

登录进来后，默认是Dashboard。Innotop支持多种模式，Dashboard只是其中一种模式。通过“?”键我们可以查看所有模式

[RO] Dashboard (? for help)             localhost, 314d, 1.95 QPS, 70/1/4 con/run/cac thds, 5.7.18-log

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        q  Quit innotop
   k  Kill a query's connection      r  Reverse sort order
   n  Switch to the next connection  s  Choose sort column
   p  Pause innotop                  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