Error
Error Code:
3166
MySQL Error 3166: Buffer Pool Resize In Progress
Description
This error indicates that an attempt was made to resize the InnoDB buffer pool, but a previous resize operation is still active. MySQL only allows one buffer pool resize operation to be in progress at any given time to maintain data integrity and system stability.
Error Message
Another buffer pool resize is already in progress.
Known Causes
3 known causesConcurrent Resize Attempt
A new command to resize the InnoDB buffer pool was issued before a previously started resize operation had completed.
Unfinished Previous Operation
A prior request to resize the buffer pool is still being processed in the background, consuming system resources.
Script/Application Logic Error
An automated script or application might be inadvertently attempting multiple buffer pool resizes without checking for ongoing operations.
Solutions
Coming SoonGeneral Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service