Check mysql-table-indexes
Overview
Checks for missing indexes in MySQL/MariaDB tables. Logic is taken from MySQLTuner script, v1.9.8.
Hints:
Requires a user account with high privileges to access schemas like INFORMATION_SCHEMA. For most INFORMATION_SCHEMA tables, each MySQL user has the right to access them, but can see only the rows in the tables that correspond to objects for which the user has the proper access privileges.. So you can’t grant permission to INFORMATION_SCHEMA directly, you have to grant permission to the tables on your own schemas, and as you do, those tables will start showing up in INFORMATION_SCHEMA queries. Then this check provide correct results.
Requires MySQL/MariaDB v5.5+.
On RHEL 7+, one way to install the Python MySQL Connector is via
pip install pymysql
Compared to check_mysql / MySQLTuner this check currently:
supports only simple login with username/password (not via SSL/TLS)
does not support a connection via socket
Fact Sheet
Check Plugin Download |
https://github.com/Linuxfabrik/monitoring-plugins/tree/main/check-plugins/mysql-table-indexes |
Check Interval Recommendation |
Once a day |
Can be called without parameters |
Yes |
Available for |
Python 3, Windows |
Requirements |
Python module |
Help
usage: mysql-table-indexes [-h] [-V] [--always-ok] [-H HOSTNAME]
[-p PASSWORD] [--port PORT] [-u USERNAME]
Checks for missing indexes in MySQL/MariaDB tables.
options:
-h, --help show this help message and exit
-V, --version show program's version number and exit
--always-ok Always returns OK.
-H HOSTNAME, --hostname HOSTNAME
MySQL/MariaDB hostname. Default: 127.0.0.1
-p PASSWORD, --password PASSWORD
Use the indicated password to authenticate the
connection. Default:
--port PORT MySQL/MariaDB port. Default: 3306
-u USERNAME, --username USERNAME
MySQL/MariaDB username. Default: root
Usage Examples
./mysql-table-indexes --hostname localhost --username root --password mypassword
Output:
Tables without indexes: employees.current_dept_emp, employees.dept_emp_latest_date [WARNING]
States
WARN if tables without indexes are found.
Perfdata / Metrics
There is no perfdata.
Credits, License
Authors: Linuxfabrik GmbH, Zurich
License: The Unlicense, see LICENSE file.
Credits:
heavily inspired by MySQLTuner (https://github.com/major/MySQLTuner-perl)