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When I try to access a non-existing route or make a mistake inside a Twig template, instead of getting the Symfony error page with debug information, I get redirected to a default nginx 502 Bad Gateway.
The log shows an interesting line:
013/07/17 16:11:41 [error] 16952#0: *187 upstream sent too big header while reading
response header from upstream, client: 127.0.0.1, server: ftwo.localhost, request: "GET
/heasd HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "ftwo.localhost"
Any ideas?
594
A 502 bad gateway message indicates that one server got an invalid response from another. In essence, you've connected with some kind of interim device (like an edge server) that should fetch all of the bits you need to load the page. Something about that process went wrong, and the message indicates the problem.
There is a good chance that if you have run into this error message while browsing, you're not at fault. Typically, an Error 502 bad gateway indicates that there is an issue with the website's server, rather than anything on your end.
Increase your buffer size in nginx configuration and restart nginx afterwards as suggested here.
proxy_buffer_size 128k;
proxy_buffers 4 256k;
proxy_busy_buffers_size 256k;
Further increase the fastcgi buffer in the php section of your configuration ( location ~ .php$ )
fastcgi_buffer_size 128k;
fastcgi_buffers 4 256k;
fastcgi_busy_buffers_size 256k;
Referenced answer to a question from a CodeIgniter user here.
117
You may also try to disable ChromePHP at app/config/config_dev.yml
Just comment out these lines:
chromephp:
type: chromephp
level: info
This plugin generates a large header and forces nginx to response with 502 Bad Gateway.
More info at:
https://github.com/symfony/symfony/issues/8413
Enable Debug Component in Symfony 2.3
39
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