[Bug]: Sending parallel GraphQl mutation request cause 500 Internal Server Error

[ayoob-lfc]

Expected behavior

Should get status 200 when sending parallel GraphQl request.

Actual behavior

I get a 500 Internal Server Error, and the following in dev.log

php.CRITICAL: Fatal Error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 20480 bytes) {"exception":"[object] (Symfony\Component\ErrorHandler\Error\OutOfMemoryError(code: 0): Error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 20480 bytes) at /var/www/html/vendor/pimcore/data-hub/src/Configuration.php:152)"} []

Steps to reproduce

Create multiple large GraphQl mutation request.
Send them all in one go.
You will get 500 Internal Server error.

[ayoob-lfc]

FYI if I add the following:

        ini_set('memory_limit', '-1');

Just before the line:

data-hub/src/Configuration.php

Line 151 in dc9862d

if (is_array($configuration)) {

The error goes away!

[kingjia90]

What happens when removing

data-hub/src/Configuration.php

Lines 151 to 153 in ce780dd

	if (is_array($configuration)) {
	$configuration = json_decode(json_encode($configuration), true);
	}

?

This encode/decode looks unnecessary and doesn't change the outcome

[dvesh3]

@kingjia90 yes, not necessary it seems since we decode it already as associative on save

data-hub/src/Controller/ConfigController.php

Line 415 in 0550084

$dataDecoded = json_decode($data, true);

Also on import

data-hub/src/Service/ImportService.php

Line 32 in 6eb04e3

$importData = json_decode($json, true);

[dvesh3]

Fixed by #813