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In this tutorial we will go over the demonstration of Out of sort memory. step by step explain consider increasing server sort buffer size mysql. you'll learn mysql 8 out of sort memory consider increasing server sort buffer size. i would like to show you out of sort memory consider increasing server sort buffer size ubuntu. Let's get started with Out of sort memory.

few days ago i was working on laravel project and when i run one following sql query, it was working on local mysql. but not working on ubuntu server in digitalocean. it tried to run using mysql command and i was able to found exactly error:

Query:

select * from `posts` where exists (select * from `categories` inner join `post_category` on `categories`.`id` = `post_category`.`category_id` where `posts`.`id` = `post_category`.`post_id` and `categories`.`slug` = 'phpexample.html') group by `posts`.`id` order by `posts`.`id` desc

Error Found:

i found following error:

ERROR 1038 (HY001): Out of sort memory, consider increasing server sort buffer size

Solution:

i search on google and find out solution with increasing size of "sort_buffer_size". so let's open my.cnf file update as like bellow:

sudo nano /etc/mysql/my.cnf

update as following:

/etc/mysql/my.cnf

[mysqld]
sort_buffer_size=5M

now you can restart mysql with following command:

sudo service mysql restart

I hope it can help you...