MySQL 3190

This error occurs when attempting to reset the master server in MySQL. It indicates that the server is unable to reset the master server due to an existing replication user or active binlogs.

How It Affects Your App

MySQL 3190 ER_CANT_RESET_MASTER has a significant impact on an application. It prevents the application from resetting the master log, which is necessary for the application to function properly. Without the ability to reset the master log, the application will not be able to process any new data, and any existing data may become corrupted. This can lead to data loss and application downtime, which can have a serious impact on the user experience.

How To Fix

1. Check the error log for the MySQL 3190 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 for any suspicious activity:

$ mysqladmin -u root -p processlist

4. Check the MySQL user table for any suspicious users:

$ mysql -u root -p -e "SELECT * FROM mysql.user;"

5. Check the MySQL grant tables for any suspicious grants:

$ mysql -u root -p -e "SELECT * FROM mysql.db;"

6. Check the MySQL system variables for any misconfigurations:

$ mysql -u root -p -e "SHOW VARIABLES;"

7. Check the MySQL system status for any misconfigurations:

$ mysql -u root -p -e "SHOW STATUS;"

8. Use an automated database observability tool to monitor and fix the MySQL 3190 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.

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