Error
Error Code:
1094
MariaDB Error 1094: Unknown Thread ID
Description
Error 1094 signifies that the MariaDB server attempted to locate a thread using a provided ID but could not find any active thread corresponding to that identifier. This typically happens when an operation, such as a `KILL` command, is directed at a thread that no longer exists or was never valid.
Error Message
Unknown thread id: %lu
Known Causes
3 known causesThread Terminated Prematurely
The target thread may have already completed its task or been disconnected from the server before the intended operation (e.g., `KILL`) could be executed.
Invalid Thread ID Provided
The thread ID specified in the command (e.g., `KILL <thread_id>`) might be incorrect, mistyped, or does not correspond to any active session.
Race Condition
In highly concurrent environments, a race condition can occur where a thread terminates just as another process attempts to interact with it, leading to the ID becoming stale.
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