Re: Asynchronous HTTP proxy

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On Tue, Mar 24, 2020 at 10:07 AM Michal Kováčik <kolacm@xxxxxxxxx> wrote:
>
> Well is there any chance you plan to support some kind of multiplexing?
>
> Our use case is that we have Apache configured to use thousands of connections to interactive servers, but we also have websockets running through same set of Apache servers. As these connections are blocking we could eventually hit the maximum and completely "clog" the server. Increasing setting to more workers doesn't scale.
> We are currently using worker MPM and we hoped that event MPM can resolve this. Did we misunderstood how event MPM should work?

In trunk / 2.5.0 mod_proxy_wstunnel has some async support so idle
websocket connections don't tie up a thread.  This only helps if your
websockets traffic is proxied.

Event only offloads some very specific things, it doesn't cause this
kind of multiplexing for most of request processing (for example while
a slow CGI is running or while mod_proxy_http is waiting for the first
byte or a subsequent byte)

Event does help a lot with keepalive and write completion (slow
reading clients) and connection shutdown tieing up threads.

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