Error
Error Code:
1206
MariaDB Error 1206: Lock Table Exceeded
Description
This error indicates that the InnoDB storage engine has run out of space in its internal lock table. It typically occurs when a single transaction or multiple concurrent transactions acquire an excessive number of locks, exceeding the configured limit.
Error Message
The total number of locks exceeds the lock table size
Known Causes
3 known causesMany Concurrent Transactions
Numerous active transactions simultaneously requesting and holding locks can quickly exhaust the lock table's capacity.
Large, Long-Running Transactions
A single transaction performing extensive operations (e.g., mass updates, deletes) can acquire a vast number of row-level locks, consuming significant lock table space.
Inefficient Query Execution
Queries without proper indexing or poorly optimized statements may result in full table scans, leading to more locks being acquired than necessary.
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