How It Affects Your App
MySQL 1620 WARN_PLUGIN_BUSY indicates that a plugin is busy and cannot be unloaded. This can have a significant impact on an application as it may prevent the application from running properly. It can also cause the application to crash or become unresponsive. Additionally, it can lead to data loss or corruption if the plugin is responsible for managing data. Therefore, it is important to address this issue as soon as possible to ensure the application is running smoothly and securely.
How To Fix
1. Check the error log for the MySQL 1620 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 that could be causing the error:
$ mysql -u root -p -e "SELECT * FROM mysql.user;"
5. Check the MySQL grant tables to see if any privileges have been granted that could be causing the error:
$ mysql -u root -p -e "SELECT * FROM mysql.db;"
6. Check the MySQL system variables to see if any variables have been set that could be causing the error:
$ mysql -u root -p -e "SHOW VARIABLES;"
7. Once the root cause of the MySQL 1620 error has been identified, take the necessary steps to fix the issue.8. After the issue has been fixed, it is recommended to use an automated database observability tool to monitor and fix the MySQL 1620 in question. Automated database observability tools can provide real-time insights into the performance and health of the database, as well as alerting when issues arise. This can help to quickly identify and fix any issues that may arise in the future.
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