How It Affects Your App
MySQL 1814 ER_TABLESPACE_DISCARDED indicates that a tablespace was discarded and no longer exists. This can have a significant impact on an application as it may cause queries to fail, data to be lost, and applications to become unstable. It can also lead to data corruption and data inconsistency, which can cause applications to crash or become unusable. In addition, it can cause performance issues as the application may need to re-execute queries or re-fetch data from the database.
How To Fix
1. Check the error log for the MySQL 1814 error:
$ tail -f /var/log/mysql/error.log
2. Check the MySQL configuration file for any misconfigurations:
$ cat /etc/mysql/my.cnf
3. Check the MySQL process list to see if any processes are running that could be causing the error:
$ mysqladmin -u root -p processlist
4. Check the MySQL user table to see if any users have been created with incorrect privileges:
$ mysql -u root -p
mysql> SELECT User, Host, Password FROM mysql.user;
5. Check the MySQL grant tables to see if any privileges have been granted incorrectly:
$ mysql -u root -p
mysql> SHOW GRANTS;
6. If the issue persists, restart the MySQL server:
$ sudo service mysql restart
7. Use an automated database observability tool to monitor and fix the MySQL 1814 in question. Automated database observability tools can provide real-time visibility into the performance and health of your database, allowing you to quickly identify and fix any issues that arise. They can also provide detailed insights into query performance, allowing you to optimize your database for maximum performance.
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