Error
Error Code:
45
MySQL Error 45: Threads Failed to Terminate
Description
This error indicates that during the final global cleanup phase (`my_thread_global_end()`), one or more MySQL threads failed to terminate correctly. It typically occurs during a server shutdown or restart process, preventing a clean exit and potentially leaving resources in an inconsistent state.
Error Message
Error in my_thread_global_end(): %d thread(s) did not exit.
Known Causes
4 known causesResource Contention or Deadlocks
Threads may be stuck waiting for resources or caught in a deadlock, preventing them from gracefully shutting down when requested.
Custom Plugin or Engine Issues
Bugs or improper implementation in custom storage engines or plugins can hinder their associated threads from terminating correctly during cleanup.
Operating System Resource Limits
Insufficient operating system resources (e.g., file descriptors, memory) can sometimes impede the proper termination of MySQL threads.
Abrupt Shutdown Procedures
Forceful or improperly sequenced shutdown commands might not allow enough time for all threads to complete their tasks and exit cleanly.
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