I got this working using haproxy with the 'dispatch' option.

Thanks


> I am running a low traffic site using nginx. I use one upstream
> multi-threadded server to serve the content. I use the proxy module to
> forward the requests.
>
> Occasionally, I need to restart the upstream server. I takes 20-30 seconds
> to startup.
>
> I want requests to queue until the server is started, i.e. configure a 30
> second timeout before I get the "502 Bad Gateway" response.
>
> I am running nginx/0.7.64 on ubuntu.
>
> Is there an nginx configuration option to make it wait until and retry
> while the server restarts? Alternatively, is there another product I
> should put in the middle between nginx and my upstream server which
> provides this functionality.
>
> Thanks,
>
> Kevin
>
>
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>
>
>



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