- Initial commit.

MIT License

Copyright (c) 2016 Adar Nimrod

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.

recursive-include check_mysql_slave *.py

exclude .pre-commit-config.yaml

include *.rst

include VERSION

include *.txt

check_mysql_slave

#################

Check MySQL seconds behind master for Nagios-like monitoring.

Usage

-----

.. code:: shell

    $ check_mysql_slave --help

    usage: check_mysql_slave [-h] -u [USER] -p [PASSWORD] [--host [HOST]]

                             [--port PORT]

                             [warning_threshold] [critical_threshold]

    positional arguments:

      warning_threshold     Warning threshold (defaults to 60)

      critical_threshold    Critical threshold (defualts to 300)

    optional arguments:

      -h, --help            show this help message and exit

      -u [USER], --user [USER]

                            Login username

      -p [PASSWORD], --password [PASSWORD]

                            Login password

      --host [HOST]         Login host

      --port PORT           Login port

License

-------

This software is licensed under the MIT license (see the :code:`LICENSE.txt`

file).

Author

------

Nimrod Adar, `contact me <nimrod@shore.co.il>`_ or visit my `website

<https://www.shore.co.il/>`_. Patches are welcome via `git send-email

<http://git-scm.com/book/en/v2/Git-Commands-Email>`_. The repository is located

at: https://www.shore.co.il/git/.

0.0.1

#!/usr/bin/env python

'''Check MySQL seconds behind master for Nagios-like monitoring.'''

from __future__ import (absolute_import, division, print_function,

                        unicode_literals)

import argparse

from argparse import ArgumentParser

try:

    from MySQLdb import connect

except ImportError:

    print('Failed to import MySQLdb. Is mysqlclient installed?')

    exit(3)

def getSlaveStatus(host, user, passwd, port):

    '''Returns a dictionary of the 'SHOW SLAVE STATUS;' command output.'''

    try:

        conn = connect(user=user, passwd=passwd, host=host, port=port)

    except BaseException as e:

        print('Failed to connect.')

        exit(3)

    cur = conn.cursor()

    cur.execute('''SHOW SLAVE STATUS;''')

    keys = [desc[0] for desc in cur.description]

    values = cur.fetchone()

    return dict(zip(keys, values))

def main():

    parser = ArgumentParser()

    parser.add_argument('-u',

                        '--user',

                        help='Login username',

                        required=True,

                        nargs='?')

    parser.add_argument('-p',

                        '--password',

                        help='Login password',

                        required=True,

                        nargs='?')

    parser.add_argument('--host',

                        help='Login host',

                        nargs='?',

                        default='localhost')

    parser.add_argument('--port',

                        help='Login port',

                        nargs=1,

                        type=int,

                        default=3306)

    parser.add_argument('warning_threshold',

                        help='Warning threshold (defaults to 60)',

                        default=60,

                        type=int,

                        nargs='?')

    parser.add_argument('critical_threshold',

                        help='Critical threshold (defualts to 300)',

                        default=300,

                        type=int,

                        nargs='?')

    args = parser.parse_args()

    status = getSlaveStatus(host=args.host,

                            user=args.user,

                            passwd=args.password,

                            port=args.port)

    if not 'Slave_IO_Running' in status or not 'Slave_SQL_Running' in status or not status[

            'Slave_IO_Running'] == 'Yes' or not status[

                'Slave_SQL_Running'] == 'Yes':

        print('Replication is turned off.')

        exit(0)

    lag = status['Seconds_Behind_Master']

    if lag > args.critical_threshold:

        print('Seconds behind master is above the critical threshold.')

        exit(2)

    elif lag > args.warning_threshold:

        print('Seconds behind master is above the warning threshold.')

        exit(1)

    else:

        print('Seconds behind master is below the warning threshold.')

        exit(0)

if __name__ == '__main__':

    main()