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Re: 502 errors, upstream sent too big header

May 03, 2011 12:20AM
On Mon, Apr 04, 2011 at 04:52:22PM -0400, Travis Derouin wrote:
> We seem to be getting sporadic 502 errors, mostly when users are logging in.
> We run a Mediawiki based website, are running nginx 0.9.5, php-fpm 5.3.5.
>
> The error:
>
> 2011/04/04 10:41:34 [error] 30517#0: *2143711 upstream sent too big header
> while reading response header from upstream, client: 192.168.100.5, server:
> _, request: "POST
> /index.php?title=Special:Userlogin&action=submitlogin&type=login&returnto=Main-Page
> HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "www.wikihow.com",
> referrer: "http://www.wikihow.com/Special:Userlogin?returnto=Main-Page"
>
> Our nginx.conf proxy buffer settings:
>
> proxy_buffers 16 16k;
> proxy_buffer_size 32k;
>
> We've tried increasing these values from the defaults a few times, and it
> doesn't seem to fix the issue.
>
> Do you have any suggestions on how to fix this?

fastcgi_buffers 16 16k;
fastcgi_buffer_size 32k;

since you use fastcgi, but not proxy.


--
Igor Sysoev

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Subject Author Posted

502 errors, upstream sent too big header

Travis Derouin April 04, 2011 04:54PM

Re: 502 errors, upstream sent too big header

Igor Sysoev April 05, 2011 12:42AM

Re: 502 errors, upstream sent too big header

assistlydavid June 27, 2011 10:38PM

Re: 502 errors, upstream sent too big header

pqdbr August 03, 2011 07:46PM

Re: 502 errors, upstream sent too big header

Maxim Dounin June 28, 2011 01:20AM

Re: 502 errors, upstream sent too big header

Mike P. May 02, 2011 12:10AM

Re: 502 errors, upstream sent too big header

Maxim Dounin May 02, 2011 02:58PM

Re: 502 errors, upstream sent too big header

Mike P. May 02, 2011 10:04PM

Re: 502 errors, upstream sent too big header

Maxim Dounin May 03, 2011 03:46AM

Re: 502 errors, upstream sent too big header

Igor Sysoev May 03, 2011 12:20AM

Re: 502 errors, upstream sent too big header

Mike P. May 03, 2011 05:02PM

Re: 502 errors, upstream sent too big header

pqdbr August 03, 2011 10:01PM



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