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/>
>
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>
