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From "Carl A. Dunham" <c...@carldunham.com>
Subject Re: connections on pool close unexpectedly
Date Tue, 25 Mar 2003 18:42:29 GMT

I had posted a crude patch a few days ago that partially solves this problem. 
It basically adds a wider connection pool that tracks free connections, 
closing them when needed and blocking requests in order to maintain a maximum 
number of open connections.

It is better, but still not quite right. Maybe it'll help you...

BTW, I'm not an httpclient developer, just a user trying to solve my own 


On Tuesday March 25 2003 12:45, Sergio Berna wrote:
> Just one more question then, before ill try to correct it myself, im
> assuming that the connections are been pooled inside the multhreadedmanager
> so as to improve performance.
> The only problem im facing is that the manager doesnt realize the
> connection is broken and i cant find any method to tell it, so the
> connection is forever broken at the pool and no matter the attemps i do it
> is always used first with the expected failure.
> Is there any method to expire the connection fotever or should i always
> create a new HttpClient so that i can use a new pool?
> If it doesnt i could try solving this problem by automatically deleting a
> connection which had thrown an IOException (then a reconnect would work) or
> making a method to expunge it out of the pool. The last one is tricky since
> you cant use it with the responsebody methods.
> Which one do you suggest?
> Sergio.
> -----Mensaje original-----
> De: Oleg Kalnichevski [mailto:o.kalnichevski@dplanet.ch]
> Enviado el: martes, 25 de marzo de 2003 18:36
> Para: Commons HttpClient Project
> Asunto: Re: connections on pool close unexpectedly
> Sergio
> I regret that your message has been left unanswered for so long. The
> problem is that out of 4 committers I seem to be the only one currently
> monitoring this forum on a regular basis, and I just happened to not be
> using connection pooling much. So, I am not the best source to turn to
> in this regard. You'll have to wait until Mike gets back in order to get
> a more informed opinion on your problem.
> However, that little can can tell:
> Both HTTP server and HTTP client may close connection at any time
> according to the HTTP spec. I suppose that the HTTP server you are using
> may be dripping connections after a minute of inactivity. This is a
> perfectly standard compliant behavior. I am afraid you might have to
> live with it and simply try the request after having caught a retriable
> exception
> I would help you provided us with more detailed information on the setup
> you are using
> Cheers
> Oleg
> On Fri, 2003-03-21 at 14:13, Sergio Berna wrote:
> > Hello,
> >
> > I am having problems with HttpClient 2.0-alpha3 when i try to pool it.
> >
> > After the first call to stablish a connection against a server i usually
> can
> > work with the client for 1 minue requetsing new pages. But after that
> minute
> > i think the connecion is been closed somehow because any new attempt to
> > retrieve any file at the host is rejcted instantly with the message
> > BrokenPipe.
> >
> > Afetr logging it the problem arises just after the first attemt to write
> the
> > HTTP header for the request so i suppose it is closed somehow either by
> the
> > client or the server and the client always attemps to write to the same
> > stream.
> >
> > Thanks for your time.
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