1. Check the error log for the MySQL 177 instance:

$ sudo tail -f /var/log/mysql/error.log

2. Check the MySQL configuration file for any misconfigurations:

$ sudo cat /etc/mysql/my.cnf

3. Check the system resources to ensure that the MySQL 177 instance is not running out of memory or disk space:

$ free -m
$ df -h

4. Check the MySQL process list to ensure that there are no long-running queries that are causing the MySQL 177 instance to become unresponsive:

$ mysql -u root -p
mysql> SHOW FULL PROCESSLIST;

5. Restart the MySQL 177 instance:

$ sudo service mysql restart

6. Use an automated database observability tool to monitor and fix the MySQL 177 instance. Automated database observability tools can provide real-time insights into the performance and health of the MySQL 177 instance, allowing for quick and easy diagnosis and resolution of any issues. Additionally, these tools can provide alerts when certain thresholds are exceeded, allowing for proactive monitoring and maintenance of the MySQL 177 instance.