Error
Error Code:
1038
MySQL Error 1038: Out of Sort Memory
Description
MySQL Error 1038, "Out of sort memory," occurs when the server runs out of the allocated memory for performing sorting operations. This typically happens during complex queries that involve clauses like ORDER BY, GROUP BY, or DISTINCT on large datasets.
Error Message
Out of sort memory, consider increasing server sort buffer size
Known Causes
3 known causesInsufficient Sort Buffer Size
The 'sort_buffer_size' server variable is set too low to accommodate the memory demands of current sorting operations.
Large Datasets for Sorting
Queries processing a significant number of rows that require sorting (e.g., millions of records) can quickly exhaust the available sort memory.
Complex Query Operations
Queries with multiple ORDER BY clauses, GROUP BY aggregations, or DISTINCT operations on large result sets demand more memory for intermediate sorting.
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