Php7.4 preload with opcache enabled fpm error

Question

I'm currently using nginx, php7.4-fpm (php7.4.2) and symfony5.

I tried to enable php7.4 preload feature I'm getting fpm error.

*1 recv() failed (104: Connection reset by peer) while reading response header from upstream, client

php.ini: opcache.preload=/var/www/domain/var/cache/prod/App_KernelProdContainer.preload.php opcache.preload_user=ubuntu

Any suggestions what could be wrong?

Answer 1

I had the same issue with php7.4.2, symfony 5 and nginx and after some research, here what I found:

• https://github.com/symfony/symfony/pull/34910#issuecomment-578761190
• https://ezplatform.com/blog/php-7.4-opcache-preloading-benchmark

It seems to be a bug with opcache.preload_user parameter which is mandatory :)

I suggest you to comment opcache.preload and opcache.preload_user and wait for php7.4.3.

Hope it helps