nginx performance using resolver

Igor Sysoev is at rambler-co.ru
Sat May 30 11:39:07 MSD 2009


On Sat, May 30, 2009 at 03:43:46AM +0200, Nginx Lova wrote:

> Hello Igor
> 
> Is there a way to enter 2 dns server to use for resolving ?
> Trying to add some redundancy there. If not I would have to have a vip 
> which hits X number of name servers.

No, currently only single IP.

> Thanks
> 
> Igor Sysoev wrote:
> > On Thu, Feb 05, 2009 at 06:57:16PM +0100, Nginx Lova wrote:
> > 
> >> > 
> >> 
> >> So this sets the resolver to timeout at a specific type of search ?
> >> 
> >> first it checks upstreams then dns , so does this set the timeout for 
> >> upstreams to 2s ? then the dns to 2s ?
> > 
> > No, first nginx looks up a host in upstream's. There is no timeout.
> > If the host is not defined as upstream, then nginx tests it as IP 
> > address.
> > If the host is not IP address, then nginx tries to resolve the host.
> > The timeout is used here while resolving.
> 
> -- 
> Posted via http://www.ruby-forum.com/.

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





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