[Zope-dev] Wrong length for http requests!

[Andreas Jung]

When I run ab with -v20 it prints out the complete
headers for *every* HTTP request including the payload.
Redirect the output and as first step I would
grep for 'Content-Length'. They should be the same for
every single request...

-aj
----- Original Message -----
From: "Joachim Werner" <joe@iuveno.de>
To: <zope-dev@zope.org>
Sent: Friday, June 07, 2002 15:32
Subject: Re: [Zope-dev] Wrong length for http requests!


>
> ----- Original Message -----
> From: "Joachim Werner" <joe@iuveno-net.de>
> To: "Andreas Jung" <andreas@zope.com>
> Sent: Friday, June 07, 2002 9:31 PM
> Subject: Re: [Zope-dev] Wrong length for http requests!
>
>
> > Hi!
> >
> > I tried with more verbosity. The result is that the headers'
> Content_Length
> > differs.
> >
> > I now have a first guess on what happens: The page that is delivered is
> not
> > really static, but has a rotating news box. From a pool of news, random
> news
> > items are chosen and displayed.
> >
> > I use the random method to generate the random numbers. Is it possible
> that
> > the length calculation for the header uses a different random number
than
> > the method that selects the news? Maybe because the method is called
> twice,
> > once to calculate the length and once to actually serve the data?
> >
> > If yes, is there a workaround or fix?
> >
> > Cheers
> >
> > Joachim
> >
> >
> > ----- Original Message -----
> > From: "Andreas Jung" <andreas@zope.com>
> > To: "Joachim Werner" <joe@iuveno.de>; <zope-dev@zope.org>
> > Sent: Friday, June 07, 2002 9:11 PM
> > Subject: Re: [Zope-dev] Wrong length for http requests!
> >
> >
> > > Maybe the headers are different? Try to increase the verbosity level
> > > for ab to get the output of the headers and the payload. Maybe you can
> > > find something there.
> > >
> > > -aj
> > > ----- Original Message -----
> > > From: "Joachim Werner" <joe@iuveno.de>
> > > To: <zope-dev@zope.org>
> > > Sent: Friday, June 07, 2002 15:03
> > > Subject: [Zope-dev] Wrong length for http requests!
> > >
> > >
> > > > Hi!
> > > >
> > > > I am getting the following results from an ab (Apache benchmark) run
> > > against
> > > > a Zope site:
> > > >
> > > > Concurrency Level:      20
> > > > Time taken for tests:   11.862 seconds
> > > > Complete requests:      40
> > > > Failed requests:        23
> > > >    (Connect: 0, Length: 23, Exceptions: 0)
> > > > Total transferred:      1517831 bytes
> > > > HTML transferred:       1504991 bytes
> > > > Requests per second:    3.37
> > > > Transfer rate:          127.96 kb/s received
> > > >
> > > > Connnection Times (ms)
> > > >               min   avg   max
> > > > Connect:        0     2     8
> > > > Processing:   326  4525  5953
> > > > Total:        326  4527  5961
> > > >
> > > > The failed requests are due to a length error. When I look at the
> > detailed
> > > > log, I see differing lengths for requests to exactly the same page:
> > > >
> > > > B 161954188 2002-06-07T20:55:01 GET /instances/KU/index_html
> > > > I 161954188 2002-06-07T20:55:01 0
> > > > A 162098188 2002-06-07T20:55:01 200 37947
> > > > E 162098188 2002-06-07T20:55:01
> > > > B 159004660 2002-06-07T20:55:01 GET /instances/KU/index_html
> > > > I 159004660 2002-06-07T20:55:01 0
> > > > A 159706548 2002-06-07T20:55:01 200 37963
> > > > E 159706548 2002-06-07T20:55:01
> > > > B 158147100 2002-06-07T20:55:01 GET /instances/KU/index_html
> > > > I 158147100 2002-06-07T20:55:01 0
> > > > A 159649356 2002-06-07T20:55:02 200 37923
> > > > E 159649356 2002-06-07T20:55:02
> > > >
> > > > Does anybody know where that might come from? I will get into more
> > detail
> > > on
> > > > how the page is generated if you need to know. But I'd need a first
> hint
> > > > where to look at first because there is lot of code involved ...
> > > >
> > > > Cheers
> > > >
> > > > Joachim
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > _______________________________________________
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> > >
> > >
> >
>
>
>
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