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From "Joshua Slive" <jos...@slive.ca>
Subject Re: [users@httpd] Force to Push data from a reverse proxy
Date Tue, 24 Jul 2007 16:13:41 GMT
On 7/24/07, Jean-Baptiste Mayer <jb@dfi.ch> wrote:
> Hello,
>
> I have a trouble using a reverse proxy:
>
> Server A (HTTP) <---> Reverse-Proxy (apache-2.0) <---> Client
>
> The client is a java application that displays real time financial data that
> uses HTTP as transport.
>
> Without the reverse proxy in the middle, everything is working fine.
>
> Using the reverse proxy, we loose the real time aspect of the application
> because data come once in a while (every ten seconds or so) by "big chunks".
>
> Using a tcpdump of the session, here is what we have:
>
> From Server A to Reverse-Proxy Server: a lot of small size packets (about 95
> bytes) of HTTP payload, a TCP push is used for each frame.
>
> From the reverse proxy server to the Java client: we can see packets but
> more seldom, HTTP payload of 1380 bytes.
>
> Reverse proxy Apache seems to always want to "bufferize" at least the number
> of bytes equivalent to a frame.
>
> Does any one know an option to disable this functioning and to push data to
> the client every time the Server A pushes?

Have you looked at the ProxyIOBufferSize directive?

Joshua.

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