After installing Magento 2.2.2 when I check my error log I get this warning.

Memory size allocated for the temporary table is more than 20% of innodb_buffer_pool_size. Please update innodb_buffer_pool_size or decrease batch size value (which decreases memory usages for the temporary table). Current batch size: 100000; Allocated memory size: 50000000 bytes; InnoDB buffer pool size: 134217728 bytes.

Where the error is saying memory size allocated for the temporary table is more than 20%. Which temporary table is it referencing to? How should I resolve it?


Magento can increase the memory for processing a large amount of data by using memory engines instead of InnoDB. The algorithm increases the memory value for the max_heap_table_size and tmp_table_size MySQL parameters.

When the allocated memory size for a temporary table will be greater than 20% of innodb_buffer_pool_size, the error message is written to the Magento log.

To prevent this error message, you need to update default Batching configuration of catalog_category_product (Category Products) indexer because "Current batch size: 100000".

For more details, take a look here.

| improve this answer | |
  • Go to your server MySQL settings file (my.ini)
  • Search for innodb_buffer_pool_size and increase this value.
| improve this answer | |
  • where do i locate the mySQL setting file (my.ini)? thanks – Kris Wen Jun 1 '19 at 0:50
  • is there a way to config this in project level, and not on mysql? – rafaelphp Jun 9 '19 at 20:07

The file is at /etc/my.cnf in root SSH, since the full path wasn't noted previously. Upon making any changes to /etc/my.cnf file, please restart MySQL for those changes to take effect

| improve this answer | |

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.