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Date: Thu, 7 Apr 2016 10:25:02 -0400
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 <CALK=YjPKDxfVe4AEPZO-6eU7LCx46WuVECNVZ8OQ6OhvnBODKA@mail.gmail.com>
From: Eric Covener <covener@gmail.com>
To: users@httpd.apache.org
Content-Type: text/plain; charset=UTF-8
Subject: Re: [users@httpd] mod_proxy_fcgi connection reuse with PHP-FPM and
 UDS

On Fri, Apr 1, 2016 at 10:26 AM, Matthias Leopold
<matthias@leopold.priv.at> wrote:
> I'd like to use it with a unix domain socket, the "Proxy via Handler"
> example uses the "enablereuse" directive, the "PHP-FPM with UDS" example
> (ProxyPassMatch) says "# UDS does not currently support connection reuse".
> What is true now and when should i use "enablereuse"?

For a long stretch of 2.4.x, reuse was forced off for mod_proxy_fcgi over TCP.
Because it was that way for so long, it is opt-in.

The benefit is some reduced latency in dispatching a request to a FCGI server.

I am not sure why UDS connections aren't pooled/reusable.  Probably
just never implemented.

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