Hello!

On Thu, Apr 26, 2012 at 10:11:48AM +0800, kindy wrote:

> hi,
>
> from nginx 1.1.13 to 1.2.0.
> the conf:
>
> upstream a {
> server 127.0.0.1:8083;
> keepalive 10 single;

Don't use "single", it's intentionally left undocumented in
official nginx docs (http://nginx.org/r/keepalive) as it
might cause various problems. It will likely be deprecated and
removed.

Maxim Dounin

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