Error
Error Code:
1640
MySQL Error 1640: Debug Sync Point Limit Reached
Description
Error 1640, 'debug sync point hit limit reached', indicates that a debug synchronization point within MySQL has been triggered more times than its configured limit. This error is specific to the `debug_sync` feature, which is an internal debugging tool primarily used by MySQL developers for testing and development builds. It generally does not occur in standard production MySQL installations unless `debug_sync` has been intentionally enabled.
Error Message
debug sync point hit limit reached
Known Causes
3 known causesDebug Sync Feature Enabled ⚙
The `debug_sync` feature, an internal development tool, has been explicitly enabled in the MySQL server configuration or session.
Exceeded Configured Hit Limit ⚠
A specific debug synchronization point has been triggered more times than the `debug_sync` command or internal configuration allows.
Custom Build or Testing Environment 💻
This error often arises in custom MySQL builds or specific testing environments where advanced debugging features are intentionally activated for development purposes.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General 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