Nginx + fair load balancer patch looping

Igor Sysoev is at rambler-co.ru
Fri Feb 29 14:26:16 MSK 2008


On Fri, Feb 29, 2008 at 12:51:33PM +0200, Joshua Sierles wrote:

> 
> On Feb 29, 2008, at 11:39 AM, Alexander Staubo wrote:
> 
> >An Nginx instance suddenly started spewing the following to its error
> >log at a rate of about 1GB/minute, and using a bit more CPU than
> >usual:
> >
> > 2008/02/29 10:33:47 [error] 16875#0: *126309461 upstream prematurely
> >closed connection while reading response header from upstream [...]
> >
> >Aside from the excessive logging, everything else seemed normal. Our
> >next_upstream setting is:
> >
> > proxy_next_upstream error invalid_header;
> >
> >Restarting Nginx fixed the problem.
> >
> >Could this be the fair load balancer going hairwire?
> >
> >Alexander.
> >
> 
> At Engine Yard we are seeing this happen as well, usually when a  
> backend goes down or a 'clock skew' message is logged. It gets logged  
> hundreds of thousands of times for each request.

Oh, I have missed "fair load balancer patch".
No, I'm not able to debug the bug.


-- 
Igor Sysoev
http://sysoev.ru/en/





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