Allowed memory size of 134217728 bytes exhausted (tried to allocate 1638400 bytes)

This article talks about what to check when such an error occurs.

Environment

EC2
Laravel
supervisor

In this case, it occurred when running heavy tasks asynchronously using Queue.

Conclusion

It is possible that you exceeded the amount of memory set in the php.ini configuration file.

This error can occur not only with queues but also with actions like composer install.

Solution

Find where php.ini is located

php --ini

By running this command.

In my case, I installed php7.4, so I can find it by running:

php74 --ini

and it will show:

Loaded Configuration File:     /etc/opt/remi/php74/php.ini

This is the location of php.ini.

When you don't know the PHP version

You can use the function phpinfo() to check various information.

If it's a development or test environment, this is the fastest way to find out (never do this in a production environment).

Write the following in web.php

Route::get('aaaaaaa', function () {
     dd(phpinfo());
     return redirect()->route('login');
 });

Accessing http://????/aaaaaaa will show you the information.

Look for the location of the php.ini file in the information.

In this case, it was found in:

/etc/opt/remi/php74/php.ini

Edit the file

Open the file location you found earlier with vim.

sudo vim /etc/opt/remi/php74/php.ini

You'll see:

memory_limit  = 128M

Change it to:

memory_limit = 256M

In vim, you can search with:

/memory

After editing, save with:

/wq

⇨Basic Vim Commands for EC2 and other uses

Restart Apache

One-line command to restart Apache.

sudo systemctl restart httpd

Don't forget to restart supervisor

Memory shortage issues in queues won't be resolved until you restart them (easy to forget).

supervisorctl restart all

The queue has been restarted.

Summary

These are the steps to resolve memory shortage issues.

I wasted hours because I forgot to restart the supervisor.

And yet, the article is just three lines long!!!

Please be careful, everyone. That's all.