Upstream (fair) with dead servers

[Weibin Yao]

Kamil Gorlo at 2009-7-9 22:47 wrote:
> Hi,
>
> I have (possibly quite rare) situation where I have one upstream with
> two servers and I know that in any particular moment only one of those
> servers is running:
>
> upstream blah {
>     server server1; // when working, server2 is dead
>     server server2; // when working, server1 is dead
> }
>
> So, what I need is that Nginx will choose working backend (in this
> upstream), remembers it and choose it for every request till some
> failure on this server occurs. Then it tries other server in upstream,
> till it finds some working - and situation repeats. Is this possible?
>
> Maybe upstream_fair module with option no_rr will work for me (I am not sure)?
>
> Cheers,
>   
I think you should try the keepalived.

-- 
Weibin Yao