dbtop

Similar to the Unix 'top' tool, this Ruby gem will provide process monitoring for your MySQL database instance.

By using command line arguments or environmental variables, dbtop will connect to your db and return your current process list (minus Sleep processes) on screen, in a terminal Curses buffer.

By default, the port used will be 3306 unless the environment variable for MYSQL_PORT is specified.

Features

Easy out-of-the-box connectivity to your database if you use environmental variables.

Won't make a mess of your terminal (drawn to a Curses buffer).

Examples

If you don't have environmental variables set for your MySQL database, run dbtop with command line arguments:

  ruby dbtop.rb -u #{user} -p #{pass} -h #{host} -d #{database} -i 1

If you have environmental variables set for your MySQL database already, just run dbtop :)

  ruby dbtop.rb

  ruby dbtop.rb -i 1

Note: You can quit the application by pressing 'q'

Requirements

Ruby 1.9.2+

If you're using ENV variables:

MYSQL_USER MYSQL_PASSWORD MYSQL_HOST MYSQL_DATABASE MYSQL_PORT

Install

Install all required gems by running:

bundle install

Install the gem manually by running:

rake gem:install

in the application folder.

Usage

State   Command         Description
        S               Include 'Sleep' processes
        p               Pause the process monitor
        K               Enter kill mode -- navigate to kill a process

When in 'kill' mode, use the 'j', and 'k', keys to navigate up and down as you would in VIM. Select the process you wish to kill and press ENTER. If you wish to cancel, press ESC.

TODO

Clean up the code!!

Implement scrolling if the list of processes exceeds the terminal screen size.

VIM style navigation (# for navigating up and down)

Author

Original author: Alfred Moreno

License

(The MIT License)

Copyright (c) 2012 Alfred Moreno

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.