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From "Jean-Baptiste Mayer" ...@dfi.ch>
Subject RE: [users@httpd] Force to Push data from a reverse proxy
Date Wed, 25 Jul 2007 16:11:09 GMT
I solved my problem by installing and configuring squid which does not seem
to bufferize data.

Jean-Baptiste.

-----Message d'origine-----
De : Jean-Baptiste Mayer [mailto:jb@dfi.ch] 
Envoyé : mercredi, 25. juillet 2007 08:14
À : users@httpd.apache.org
Objet : RE: [users@httpd] Force to Push data from a reverse proxy


Hello,

Yes I put "ProxyIOBufferSize 1" to have the minimum buffer size and it
unfortunately did not change anything. 

Best Regards,
 
Jean-Baptiste

-----Message d'origine-----
De : jslive@gmail.com [mailto:jslive@gmail.com] De la part de Joshua Slive
Envoyé : mardi, 24. juillet 2007 18:14
À : users@httpd.apache.org
Objet : Re: [users@httpd] Force to Push data from a reverse proxy


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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