MySQL 3166

This error indicates that a buffer pool resize operation is already in progress and cannot be executed again until it is completed.

How It Affects Your App

MySQL 3166 ER_BUFPOOL_RESIZE_INPROGRESS indicates that a buffer pool resize operation is already in progress. This can have a significant impact on the application as it may cause queries to take longer to execute, or even fail. It can also lead to increased memory usage, which can cause the application to become unresponsive or crash. Additionally, it can lead to decreased performance and scalability of the application.

How To Fix

1. Check the error log for the MySQL 3166 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 database for any corrupt tables:
$ mysqlcheck -c -u root -p
5. Check the MySQL database for any missing tables:
$ mysqlcheck -m -u root -p
6. Check the MySQL database for any missing indexes:
$ mysqlcheck -i -u root -p
7. Check the MySQL database for any missing foreign keys:
$ mysqlcheck -f -u root -p
8. Check the MySQL database for any missing triggers:
$ mysqlcheck -t -u root -p
9. Check the MySQL database for any missing views:
$ mysqlcheck -v -u root -p
10. Check the MySQL database for any missing stored procedures:
$ mysqlcheck -p -u root -p
11. Check the MySQL database for any missing functions:
$ mysqlcheck -f -u root -p
12. Check the MySQL database for any missing events:
$ mysqlcheck -e -u root -p
13. Check the MySQL database for any missing privileges:
$ mysqlcheck -P -u root -p
14. Check the MySQL database for any missing users:
$ mysqlcheck -u -u root -p
15. Check the MySQL database for any missing roles:
$ mysqlcheck -r -u root -p
16. Check the MySQL database for any missing grants:
$ mysqlcheck -g -u root -p
17. Check the MySQL database for any missing triggers:
$ mysqlcheck -t -u root -p
18. Check the MySQL database for any missing views:
$ mysqlcheck -v -u root -p
19. Check the MySQL database for any missing stored procedures:
$ mysqlcheck -p -u root -p
20. Check the MySQL database for any missing functions:
$ mysqlcheck -f -u root -p
21. Check the MySQL database for any missing events:
$ mysqlcheck -e -u root -p
22. Check the MySQL database for any missing privileges:
$ mysqlcheck -P -u root -p
23. Check the MySQL database for any missing users:
$ mysqlcheck -u -u root -p
24. Check the MySQL database for any missing roles:
$ mysqlcheck -r -u root -p
25. Check the MySQL database for any missing grants:
$ mysqlcheck -g -u root -p
26. Finally, use an automated database observability tool to monitor and fix the MySQL 3166 in question. Automated database observability tools can help identify and diagnose issues quickly, as well as provide insights into the performance and health of the database. They can also provide alerts when issues arise, allowing for faster resolution.

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