Error "1038 Out of sort memory, consider increasing sort buffer size

Question

In symfony2, doctrine2, I have a query which triggers an error :

Error \"1038 Out of sort memory, consider increasing server sort buffer size

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Answer 1

In my case what actually helped without increasing the sort buffer size was to create indexes for the fields that I was ordering on. I'm not sure if it would work when joining tables but it will work when trying to order a single table which is very large.

Answer 2

Just run mysql query

SET GLOBAL sort_buffer_size = 256000000 // It'll reset after server restart

To set permanent

Edit below file and add

sudo nano /etc/mysql/mysql.conf.d/mysqld.cnf

sort_buffer_size = 256000000

sudo service mysql restart

Answer 3

If you are using the docker mysql container add the follow setting in docker-compose.yml:

db:
    image: mysql:8
    command: --sort_buffer_size=512K

Answer 4

You probably need to increase the buffer size of mysql in the /etc/mysql/my.cnf , set

sort_buffer_size to 256K