1. Check the error log for the MySQL 1545 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 queries are running for a long time:
$ mysqladmin -u root -p processlist
4. Check the MySQL status to see if there are any issues with the server:
$ mysqladmin -u root -p status
5. Check the MySQL variables to see if any of them are set incorrectly:
$ mysqladmin -u root -p variables
6. Check the MySQL user privileges to see if any of them are set incorrectly:
$ mysql -u root -p -e "SELECT * FROM mysql.user;"
7. Check the MySQL database tables to see if any of them are corrupted:
$ mysqlcheck -u root -p --all-databases
8. Check the MySQL database logs to see if any of them are corrupted:
$ mysqlbinlog -u root -p /var/log/mysql/binlog.log
9. Restart the MySQL server to apply any changes made:
$ service mysql restart
10. Use an automated database observability tool to monitor and fix the MySQL 1545 in question. Automated database observability tools can provide real-time insights into the performance and health of your database, allowing you to quickly identify and fix any issues that may arise. They can also provide detailed metrics and logs to help you troubleshoot and diagnose any issues that may arise.