Server timing out while trying to upload and process XLS file

  • Posted September 14, 2017
  • Nginx

Hey guys,

I’m running a Laravel small app which processes a uploaded XLS. Out of a sudden it started giving a 502 error. My Nginx log only says

2017/09/14 17:45:54 [error] 1896#1896: *1 recv() failed (104: Connection reset by peer) while reading response header from upstream, client:, server:, request: “POST /admin/importar HTTP/1.1”, upstream: “fastcgi://unix:/run/php/php7.0-fpm.sock:”, host: “”, referrer: “

I tried many things, including increasing timeout time and buffer size in PHP.ini or in nginx config file

Nothing works.

Any idea on how I could solve this?

The xls file is about 1 MB and the app runs smoothly locally


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I would recommend enabling PHP error logging and checking your PHP error log for more information.

My guess would be that either there’s not enough PHP memory or maybe the PHP FPM service is crashing due to not enough RAM.

Regards, Bobby