Welcome! Log In Create A New Profile

Advanced

When does nginx return a Bad gateway (502)?

March 19, 2013 04:29PM
I have an application behind nginx (Rails on Unicorn if it matters) which listens on a UNIX socket.

It all works nice, especially when load is low. When there is some load on the server though (say 70%), I randomly(?) get a bunch of 502 responses -- usually in batches.

Thus the question: when (under what conditions) does nginx send a 502 response?

Thanks in advance,

fastcatch

PS: The app's worker processes do not seem to be irresponsive, slow, blocked for IO or anything else I have been able to identify as a possible cause. Thus I want to understand more the nginx side so as to find the root cause -- which I believe is on the other side (or some config tweak needed soemwhere).
SubjectAuthorPosted

When does nginx return a Bad gateway (502)?

fastcatchMarch 19, 2013 04:29PM

Re: When does nginx return a Bad gateway (502)?

Nikolas Stevenson-MolnarMarch 19, 2013 04:48PM

Re: When does nginx return a Bad gateway (502)?

fastcatchMarch 20, 2013 06:03AM

Re: When does nginx return a Bad gateway (502)?

fastcatchMarch 21, 2013 06:03AM



Sorry, only registered users may post in this forum.

Click here to login

Online Users

Guests: 77
Record Number of Users: 7 on March 06, 2014
Record Number of Guests: 184 on July 08, 2014
Powered by nginx    Powered by FreeBSD    PHP Powered    Powered by Percona     ipv6 ready