MySQL 1661

This error occurs when a statement is executed that mixes transactional and non-transactional tables in the same statement.

How It Affects Your App

The error 1661 ER_BINLOG_ROW_ENGINE_AND_STMT_ENGINE indicates that the statement engine and the row engine used in the binary log are not the same. This can cause inconsistencies in the data stored in the database, which can lead to unexpected results when the application is running. This can cause the application to crash or malfunction, resulting in data loss or corruption. It can also lead to security issues, as the application may not be able to properly authenticate users or protect sensitive data.

How To Fix

1. Check the error log for the MySQL 1661 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 server status to see if it is running:
$ mysqladmin status
4. Check the MySQL server process list to see if there are any long-running queries:
$ mysqladmin processlist
5. Check the MySQL server variables to see if any of them are set incorrectly:
$ mysqladmin variables
6. Check the MySQL server tables to see if any of them are corrupted:
$ mysqldump --all-databases > dump.sql
7. If the issue persists, use an automated database observability tool to monitor and fix the MySQL 1661 error. 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. Additionally, these tools can provide detailed metrics and logs that can help you diagnose and troubleshoot any MySQL 1661 errors.

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