1. Check the error log for the MySQL 1771 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 query cache to see if any of the queries are taking too long to execute:
$ mysqladmin -u root -p flush-query-cache
9. Check the MySQL slow query log to see if any of the queries are taking too long to execute:
$ mysqladmin -u root -p slow-query-log
10. Check the MySQL replication status to see if any of the slaves are lagging behind:
$ mysqladmin -u root -p show-slave-status
11. Restart the MySQL server to apply any changes made to the configuration file:
$ service mysql restart
12. Use an automated database observability tool to monitor and fix the MySQL 1771 in question. Automated database observability tools can provide real-time insights into the performance of your database, allowing you to quickly identify and fix any issues that may arise. They can also provide detailed metrics and logs that can help you troubleshoot and optimize your database performance.