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From Oleg Kalnichevski <ol...@apache.org>
Subject Re: httpclient proxy timeouts with long responses
Date Wed, 08 Nov 2006 20:08:06 GMT
On Wed, 2006-11-08 at 14:13 -0500, Daniel Lapadat wrote:
> I have not been able to find a solution to the following problem.
> 
> We have an application that talks to servlets using HTTPClient.  It requests
> information from the servlets, sometimes the response can take a long time ( >
> 10 minutes ). 

Daniel,

Just to make sure we all understand you right. Does it take > 10 min to
stream out response really large response content or does it take such a
long while to generate a response (high latency scenario)?

Oleg

>  Everything was working fine until some of our new users sat
> behind a proxy server.  The proxy server is timing out our HTTP connection at
> around 5 minutes.  We of course cannot modify any of the proxy server's
> settings.  Is there some way of sending a keep alive signal to the proxy server?
>  I thought that HTTP 1.1 automatically did this.
> 
> The only solution we have found is to start writing white space back to the
> client every couple of seconds but if we do that and there is an error on the
> server side, the client will not get any response back from the server because
> we started to write to the output stream of the HTTPResponse object.  sendError
> causes an IllegalStateException on the server end.  In order to avoid this we
> cannot write to the output stream until we have a response from the database or
> other systems.
> 
> Any help would be appreciated,
> 
> Dan
> 
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