high Traffic setup problem, module status don't deliver data

Valentin V. Bartenev vbart at nginx.com
Tue Feb 11 11:45:48 UTC 2014


On Tuesday 11 February 2014 12:34:59 Aleksandar Lazic wrote:
[..]
> > 
> > You haven't shown your server level configuration.
> > Do you use deferred accept?
> 
> yes
> 
> listen       <IP>:80 deferred default_server;
> 

Ok.  Two other guesses: you have tcp_syncookies disabled,
and tcp_abort_on_overflow enabled?

Please note, that with deferred accept enabled it is very
easy to have tcp_max_syn_backlog overflowed, especially
with nginx prior to 1.5.10.

  wbr, Valentin V. Bartenev



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