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From Philippe Mouawad <philippe.moua...@gmail.com>
Subject Re: Important Regression in nightly build compared to 2.13 or r1715087
Date Sat, 30 Jan 2016 00:13:19 GMT
Well,
it's a Connect Timeout  (connect Timeout being set to 10 s), I cannot tell
as Timeout occurs on an embedded resources.
But it seems issues is related to Embedded resources download.

Regards

On Sat, Jan 30, 2016 at 1:00 AM, sebb <sebbaz@gmail.com> wrote:

> On 29 January 2016 at 23:47, Philippe Mouawad
> <philippe.mouawad@gmail.com> wrote:
> > On Saturday, January 30, 2016, sebb <sebbaz@gmail.com> wrote:
> >
> >> On 29 January 2016 at 23:31, Philippe Mouawad
> >> <philippe.mouawad@gmail.com <javascript:;>> wrote:
> >> > Hello,
> >> > I made a real load test today using nightly build and faced an
> important
> >> > issue.
> >> >
> >> > Here are the details:
> >> > - Test uses 1000 Threads on 1 Instance
> >> > - It uses "Download Embedded Resources"
> >> > - Socket Timeout is set to 10s
> >> >
> >> > There is no overloading of the machine, no impacting GC
> >> >
> >> > Very rapidly, I start getting a lot of errors:
> >> >
> >> >
> >> >    - Non HTTP response code:
> org.apache.http.conn.ConnectTimeoutException
> >> >    message:Non HTTP response message: Connect to www.foo.com:80 timed
> >> out
> >>
> >> What is the elapsed time till the timeout occurs?
> >
> >
> > In the initial test, it happens after 2 minutes at around 300. threads.
> >
> > with a test at 300 threads and a very rapid rampup (5 seconds, with a
> > startup delay of 10 seconds)  to reproduce it happens after 16 seconds
> >
>
> I meant - how long between the start of a sample until the timeout?
> Does it vary much between samples?
>
> >>
> >> >
> >> > Rate of error varies between 15% and 30%.
> >> > Note that if I navigate on the application, I don't face the errors.
> >> >
> >> > I ran the same test using exactly the same configuration:
> >> >
> >> >    - Same machine
> >> >    - Same JVM version and tuning
> >> >    - Same user.properties
> >> >    - Same hc.parameters
> >> >
> >> > But  jmeter  r1715087
> >> > And error rate is 0.30%.
> >> >
> >> >
> >> > Note the target server has a load balancer that returns a keep-alive
> >> > duration set to 2 (2 seconds).
> >> >
> >> > This issue is a blocker one for the release of next version.
> >> > I compared code with revision 1715087 and I don't see many changes in
> >> > HTTPHC4Impl that would explain this regression.
> >> > I commented out some suspects , retried but I get same results.
> >> >
> >> >
> >> > I also upgraded to HttpClient 4.5.2 and uncommented the code expected
> to
> >> be
> >> > added, same results.
> >> >
> >> > So for now I tend to suspect an issue in HttpClient/Core.
> >> > --
> >> > Regards
> >> > Philippe M.
> >>
> >
> >
> > --
> > Cordialement.
> > Philippe Mouawad.
>



-- 
Cordialement.
Philippe Mouawad.

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