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Date: Fri, 14 Feb 2014 15:42:31 +0100
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Subject: Re: HttpClient 4.2.6 : ManagedClientConnectionImpl way of checking
 stale connection and Performances
From: Philippe Mouawad <philippe.mouawad@gmail.com>
To: HttpClient User Discussion <httpclient-users@hc.apache.org>
Cc: "dev@jmeter.apache.org" <dev@jmeter.apache.org>
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Hello Oleg,
We set this configuration in JMeter 2.11, we got recently this bug report
related to this change:
https://issues.apache.org/bugzilla/show_bug.cgi?id=56119

This issue seems to be faced by another person:
https://twitter.com/cfwhisperer/status/428278488349417472

Regards
Philippe


On Wed, Dec 11, 2013 at 9:50 AM, Oleg Kalnichevski <olegk@apache.org> wrote:

> On Tue, 2013-12-10 at 21:38 +0100, Philippe Mouawad wrote:
> > Hello Oleg,
> > Thanks for answer.
> > Wouldn't it be interesting to add some threshold or delay between each
> > check instead of doing check on each request ?
> >
> > Regards
> > Philippe
> >
>
> Philippe
>
> I am not sure it is worth the trouble. In most circumstances the stale
> connection check should be turned off anyway.
>
> I think it just needs to be better documented.
>
> Oleg
>
> >
> > On Mon, Dec 9, 2013 at 11:59 AM, Oleg Kalnichevski <olegk@apache.org>
> wrote:
> >
> > > On Sun, 2013-12-08 at 21:32 +0100, Philippe Mouawad wrote:
> > > > Hello,
> > > > Profiling JMeter, I noticed an important number of
> SocketTimeoutException
> > > > being triggered without any impact on response status.
> > > >
> > > > I investigated it a bit deeper and find out it affected only
> HttpClient
> > > > implementations.
> > > > Looking a bit deeper, it is due to connection stale check which is
> > > enabled
> > > > by default.
> > > > This check sets a timeout to 1ms , see :
> > > > - org.apache.http.impl.io.SocketInputBuffer#isDataAvailable
> > > > - org.apache.http.impl.AbstractHttpClientConnection#isStale
> > > >
> > > >
> > > > Is this the only and best way to check for stale connection ?
> > > >
> > > >
> > > > Regards
> > > > Philippe
> > >
> > > Philippe
> > >
> > > I personally do not know of a different (better) way of finding out
> > > whether or not a blocking connection is still valid.
> > >
> > > Oleg
> > >
> > >
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> > >
> > >
> >
> >
>
>
>
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>


-- 
Cordialement.
Philippe Mouawad.

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