Hello!

On Fri, Mar 04, 2011 at 07:47:37PM -0500, expertio wrote:

[...]

> But I do have some question to ask if it is appropriate. As I am using
> nginx as the front end, it would sometimes show a 502 error which I have
> no idea what it is about.
> The system is deployed with gunicorn + gevent.

Error 502 indicate that there is a problem with your backend(s).
Excat reasons for 502 errors are logged into error_log at "error"
level. Don't hesitate to look into it.

Maxim Dounin

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