How To Install mysqltuner on Ubuntu 22.04
Introduction
In this tutorial we learn how to install mysqltuner on Ubuntu 22.04.
What is mysqltuner
mysqltuner is:
High-performance MySQL tuning script written in perl that will provide you with a snapshot of a MySQL server?s health. Based on the statistics gathered, specific recommendations will be provided that will increase a MySQL server’s efficiency and performance. The script gives you automated MySQL tuning that is on the level of what you would receive from a MySQL DBA.
Features:
* Memory Usage: Calculates MySQL memory usage at max load and makes
recommendations for increasing or decreasing the MySQL memory
footprint. Per-thread and server-wide buffer data is calculated
separately for an accurate snapshot of the server?s configuration.
* Slow Queries: Reviews the amount of slow queries relative to the
total queries. Slow query time limits are also analyzed and
recommendations are made.
* Connections: Current and historical connection counts are
reviewed.
* Key Buffer: Takes configuration data and compares it to the actual
indexes found in MyISAM tables. Key cache hit rates are calculated
and variable adjustments are suggested.
* Query Cache: Query cache hit rates and usage percentages are used
to make recommendations for the query cache configuration
variables.
* Sorting & Joins: Per-thread buffers that affect sorts and joins
are reviewed along with the statistics from the queries run
against the server.
* Temporary Tables: Variable recommendations are made to reduce
temporary tables that are written to the disk.
* Table Cache: Compares total tables opened to the currently open
tables. Calculates the table cache hit rate in order to make
suggestions.
* Open Files: Determines if the server will approach or run into the
open file limit set by the operating system or the MySQL server
itself.
* Table Locks: Finds table locking that forces queries to wait and
makes suggestions for reducing locks that require a wait.
* Thread Cache: Calculates how many times MySQL must create a new
thread to respond to a query.
* Aborted Connections: Finds applications that are not closing
connections to MySQL properly.
* Read/Write Ratios: Calculates the percentage of read and write
operations on your MySQL installation.
There are three methods to install mysqltuner on Ubuntu 22.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install mysqltuner Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install mysqltuner using apt-get by running the following command:
sudo apt-get -y install mysqltuner
Install mysqltuner Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install mysqltuner using apt by running the following command:
sudo apt -y install mysqltuner
Install mysqltuner Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install mysqltuner using aptitude by running the following command:
sudo aptitude -y install mysqltuner
How To Uninstall mysqltuner on Ubuntu 22.04
To uninstall only the mysqltuner package we can use the following command:
sudo apt-get remove mysqltuner
Uninstall mysqltuner And Its Dependencies
To uninstall mysqltuner and its dependencies that are no longer needed by Ubuntu 22.04, we can use the command below:
sudo apt-get -y autoremove mysqltuner
Remove mysqltuner Configurations and Data
To remove mysqltuner configuration and data from Ubuntu 22.04 we can use the following command:
sudo apt-get -y purge mysqltuner
Remove mysqltuner configuration, data, and all of its dependencies
We can use the following command to remove mysqltuner configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge mysqltuner
References
Summary
In this tutorial we learn how to install mysqltuner package on Ubuntu 22.04 using different package management tools: apt, apt-get and aptitude.
