Hi Philippe

https://github.com/apache/jmeter/pull/397

Let's discuss the details in the PR

Thanks,
Artem

On Sun, Aug 26, 2018 at 12:04 AM, Philippe Mouawad <
[email protected]> wrote:

> Hello Artem,
> Go ahead and propose a patch or PR.
> It will be a clearer base to discuss.
>
> Thank you
>
> On Wed, Aug 22, 2018 at 10:56 AM Artem Fedorov <
> [email protected]>
> wrote:
>
> > I work with the latest JMeter version from github
> > (revision f27c31590cf07bc8427663b62fc22d6d650b95af)
> >
> > I create a Thread Group with 1 loop and 1 user. This Thread Group
> contains
> > View Results Tree (Listener) and HTTP Resuest (Sampler)
> >
> > Configuration of HTTP Sampler:
> >
> >         <HTTPSamplerProxy guiclass="HttpTestSampleGui"
> > > testclass="HTTPSamplerProxy" testname="HTTP Request" enabled="true">
> > >           <elementProp name="HTTPsampler.Arguments"
> > > elementType="Arguments" guiclass="HTTPArgumentsPanel"
> > testclass="Arguments"
> > > testname="User Defined Variables" enabled="true">
> > >             <collectionProp name="Arguments.arguments"/>
> > >           </elementProp>
> > >           <stringProp name="HTTPSampler.domain"></stringProp>
> > >           <stringProp name="HTTPSampler.port"></stringProp>
> > >           <stringProp name="HTTPSampler.protocol"></stringProp>
> > >           <stringProp name="HTTPSampler.contentEncoding"></stringProp>
> > >           <stringProp name="HTTPSampler.path">http://blazedemo.com
> > > </stringProp>
> > >           <stringProp name="HTTPSampler.method">GET</stringProp>
> > >           <boolProp name="HTTPSampler.follow_
> redirects">true</boolProp>
> > >           <boolProp name="HTTPSampler.auto_redirects">false</boolProp>
> > >           <boolProp name="HTTPSampler.use_keepalive">true</boolProp>
> > >           <boolProp name="HTTPSampler.DO_MULTIPART_POST">false</
> boolProp>
> > >           <stringProp name="HTTPSampler.embedded_url_re"></stringProp>
> > >           <stringProp name="HTTPSampler.proxyHost">
> localhost</stringProp>
> > >           <stringProp name="HTTPSampler.proxyPort">3321</stringProp>
> > >           <stringProp name="HTTPSampler.proxyUser">artem</stringProp>
> > >           <stringProp name="HTTPSampler.proxyPass">artem</stringProp>
> > >           <stringProp name="HTTPSampler.connect_timeout"></stringProp>
> > >           <stringProp name="HTTPSampler.response_
> timeout"></stringProp>
> > >         </HTTPSamplerProxy>
> >
> >
> > When I run this Test Plan I see 1 sample in the View Results Tree, but in
> > the access.log of squid I see 2 request from JMeter.
> >
> > 1534844834.248      0 127.0.0.1 TCP_DENIED/407 4056 GET
> > > http://blazedemo.com/ - HIER_NONE/- text/html
> > > 1534844834.320     52 127.0.0.1 TCP_MISS/200 8077 GET
> > > http://blazedemo.com/ artem HIER_DIRECT/54.93.131.97 text/html
> >
> >
> > So, in real test each Sampler will send 2 requests:
> > - 1st without authentication data (and will receive 407 http response
> code)
> >  - TCP_DENIED/407
> > - 2nd with authentication data(username/password/type) - will be a
> success
> > - TCP_MISS/200
> >
> > JMeter (httpclient) send 1st request for detect authentication type
> > (Basic/Digest/NTLM/SPNEGO/Kerberos) which use proxy server.
> > If we will have 2 loops the JMeter will send 4 requests, 3 loops = 6
> > requests etc. I would like to reduce number of request to the proxy
> server
> > and make request for detect authentication type once at the start of the
> > loop
> >
> > Artem
> >
> > On Wed, Aug 22, 2018 at 12:26 AM, Philippe Mouawad <
> > [email protected]> wrote:
> >
> > > Hello Artem,
> > > I am not sure to understand.
> > >
> > > Can you clarify with an example or reformulating what you mean by HTTP
> > > Request that use proxy with authentication.
> > >
> > > and also clarify what’s after that, it’s really not clear for me.
> > >
> > > Thank you
> > >
> > > On Tuesday, August 21, 2018, Artem Fedorov <
> [email protected]
> > >
> > > wrote:
> > >
> > > > HI All
> > > >
> > > > I configure HTTP Request that use proxy with authentication
> > > >
> > > > In proxy log I can see, that JMeter *always send 2 requests*:  (I
> used
> > > > `squid` in tests)
> > > >
> > > > 1534844834.248      0 127.0.0.1 TCP_DENIED/407 4056 GET
> > > > > http://blazedemo.com/ - HIER_NONE/- text/html
> > > > > 1534844834.320     52 127.0.0.1 TCP_MISS/200 8077 GET
> > > > > http://blazedemo.com/ artem HIER_DIRECT/54.93.131.97 text/html
> > > >
> > > >
> > > > The first request JMeter send without authentication options, because
> > > this
> > > > options are create after server got a response with 401/407 code.
> > > >
> > > > In performance test I'll see the following log: (50 % of all requests
> > are
> > > > send without authentication options) - IMO this is incorrect load of
> > > proxy
> > > > server or we lose a lot of time for create authentication scheme for
> > each
> > > > request
> > > >
> > > > - TCP_DENIED/407 (without proxy authentication)
> > > > - TCP_MISS/200 (with proxy authentication)
> > > > - TCP_DENIED/407 (without proxy authentication)
> > > > - TCP_MISS/200 (with proxy authentication)
> > > > - TCP_DENIED/407 (without proxy authentication)
> > > > - TCP_MISS/200 (with proxy authentication)
> > > > ....
> > > >
> > > > The first request (the response for this request) use by httpclient
> for
> > > > detect Standard authentication type
> > (Basic/Digest/NTLM/SPNEGO/Kerberos).
> > > I
> > > > think If we have not dynamic proxy we can *reuse* knowledges about
> > > > authentication type in the second and subsequent requests.
> > > > After such changes we will see the following log:
> > > >
> > > > - TCP_DENIED/407 (without proxy authentication)
> > > > - TCP_MISS/200 (with proxy authentication)
> > > > - TCP_MISS/200 (with proxy authentication)
> > > > - TCP_MISS/200 (with proxy authentication)
> > > > ....
> > > >
> > > > What do you think about such changes? If all is OK I can contribute
> the
> > > fix
> > > >
> > > >
> > > > Thanks,
> > > > Artem
> > > >
> > >
> > >
> > > --
> > > Cordialement.
> > > Philippe Mouawad.
> > > Ubik-Ingénierie
> > >
> > > UBIK LOAD PACK Web Site <http://www.ubikloadpack.com/>
> > >
> > > UBIK LOAD PACK on TWITTER <https://twitter.com/ubikloadpack>
> > >
> >
>
>
> --
> Cordialement.
> Philippe Mouawad.
>

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