Error
Error Code:
1119
MySQL Error 1119: Thread Stack Overrun
Description
MySQL Error 1119 indicates that a server thread has exceeded its allocated memory for the call stack. This typically occurs when complex operations, such as deeply nested queries, recursive stored procedures, or certain user-defined functions, require more stack space than the configured `thread_stack` size allows.
Error Message
Thread stack overrun: Used: %ld of a %ld stack. Use 'mysqld --thread_stack=#' to specify a bigger stack if needed
Known Causes
3 known causesComplex Queries or Stored Procedures
Executing highly recursive stored procedures, deeply nested queries, or complex user-defined functions can consume excessive stack memory.
Insufficient Thread Stack Size
The `thread_stack` server variable is set too low for the operations being performed, leading to an early stack overflow for active threads.
Problematic User-Defined Functions
Custom UDFs that are not optimized or contain deep recursion can quickly exhaust the allocated thread stack space.
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