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This article provides a guide to "fix" Munin 'MySQL InnoDB Free Tablespace' warning, which will automatically be generated based on the desired server conditions.
Given that it will continue to reflect this error indefinitely in these cases, it can be desirable to apply a patch to remove this false warning.
What is Munin?
Munin is known for being lightweight server monitoring service that is simple to set up, and very stable, though not as real-time or modern as some newer monitoring stacks.
Some popular and more robust alternatives:
Nevertheless, Munin is offered as an option with cPanel/WHM control panel software, which is where we are normally seeing this issue (though it is not exclusive to cPanel servers and will behave the same in any environment). So, let's learn how to solve it!
How to Fix Munin 'MySQL InnoDB Free Tablespace' Warning
The Munin Monitoring cPanel plugin reports a critical problem referencing "MySQL InnoDB Free Tablespace" issues:
To fix Fix Munin 'MySQL InnoDB free tablespace' warning, follow the steps provided below:
- Login as root via SSH.
- Run the following command to disable checking
mysql_innodb:rm -i /etc/munin/plugins/mysql_innodb
- Run the following command to restart Munin with the updates:
systemctl restart munin-node sudo -u munin /usr/local/cpanel/3rdparty/perl/542/bin/munin-cron
- That's it.
Conclusion
You now know how to fix Munin 'MySQL InnoDB free tablespace' warning.
