Re: HLS 2.0 simulate user behaviour for each media segment by waiting on each media segment

[UBIK LOAD PACK Support]

Hello,
Did you try this plugin which is available for installation from
jmeter-plugins-manager ?

-
https://www.ubik-ingenierie.com/blog/easy-and-realistic-load-testing-of-http-live-streaming-hls-with-apache-jmeter/

Regards

On Wednesday, January 8, 2020, UserJMeter999  wrote:

> Using HLS plugin 2.0
> If we add think time (Constant Timer) to blazemeter bzm - HLS Sampler it
> just waits for sending first sampler only(80 seconds). It is not able to
> simulate user watching video to send child media segments at intervals. I
> have video with 15 media segments all 15 requests sent to server in less
> than a minute by HLS sampler even though i have below configs on sampler.
> But in real time it is not the case where user watching video. Browser
> sends
> these 15 media segments at different intervals.
>
> Test plan
> bzm - HLS Sampler
> Constant Timer = 80 seconds
>
> Settings on HLS sampler
> Duration = whole Video (actual duration of video is 4 mins)
> bandwidth/Resolution = Minimum
>
>
>
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>
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Ubik Load Pack  Team
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Re: HLS 2.0 simulate user behaviour for each media segment by waiting on each media segment

[Philippe Mouawad]

Hello,
This plugin is out of scope of JMeter project.

Regards

On Wednesday, January 8, 2020, UserJMeter999  wrote:

> Using HLS plugin 2.0
> If we add think time (Constant Timer) to blazemeter bzm - HLS Sampler it
> just waits for sending first sampler only(80 seconds). It is not able to
> simulate user watching video to send child media segments at intervals. I
> have video with 15 media segments all 15 requests sent to server in less
> than a minute by HLS sampler even though i have below configs on sampler.
> But in real time it is not the case where user watching video. Browser
> sends
> these 15 media segments at different intervals.
>
> Test plan
> bzm - HLS Sampler
> Constant Timer = 80 seconds
>
> Settings on HLS sampler
> Duration = whole Video (actual duration of video is 4 mins)
> bandwidth/Resolution = Minimum
>
>
>
> --
> Sent from: http://www.jmeter-archive.org/JMeter-User-f512775.html
>
> -
> To unsubscribe, e-mail: user-unsubscr...@jmeter.apache.org
> For additional commands, e-mail: user-h...@jmeter.apache.org
>
>

Re: Problems Execute Linux Commands using JSR223 PrePrcessor with Groovy Engine and pipe-symbol

[Markus Obermann]

 Hello,
sorry for my very late reply and many thanks for your help - it really helped 
me a lot so i wanna share with you what i have done now and how it is working.
First some background what i needed to do:1) i have an https server where i 
need to connect using mutual tls which works perfect with the keystore (i only 
have 1 cert in the keystore)2) i do HTTPS POST request to my API running on 
this server where i send (text and/or xml) data. The server send me data back 
which then i store (using jmeters save-response-to-file)3) The tricky part is 
that i must sign (using S/MIME (p7 signature) the data i wanna send AND my URL 
using my priv. key and cert. AND THEN i need to do a base64 encoding of this 
signed file and paste the base64 result string as an specific HTTP-Header and 
sent this with my request.
Well doing this with openssl using bash works quite well - but doing this with 
jmeter would be either using bouncy-castle and do s/mime - or i just call my 
openssl commands from jmeter using groovy :)
So my solution looks like this (it's not yet fully optimized but it works quite 
good and stable)I use a JSR223 PreProcessor with groovy engine with this code 
(i also have some user-defined-variables defined thus do not wonder about the 
vars.get():



1: import org.apache.jmeter.protocol.http.sampler.HTTPSampler;
2: String path = sampler.getPath(); // this was very tricky as i do NOT have to 
use getURL(); but only the "Path"
3: String datapath = vars.get("datapath");4: String cert = vars.get("cert");5: 
String key = vars.get("key");6: String tempsave = vars.get("tempsave");

7: p="echo -en $path".execute() | "openssl smime -sign -signer $cert -inkey 
$key -outform der -binary -md sha384 -out $savetemp/url.p7".execute() | 
"openssl smime -in $datapath/data.xml -sign -signer $cert -inkey $key -outform 
der -binary -md sha384 -out $savetemp/file.p7".execute()8: p.text
9: f="base64 -w 0 $savetemp/file.p7".execute().text10: u="base64 -w 0 
$savetemp/url.p7".execute().text
11: vars.put("filebase64", f);12: vars.put("urlbase64", u);

Well this works and will do the stuff i need. It was a little bit tricky about 
the getPath() stuff at line 2.As ive told before i need to sign the URL. Thus i 
thought this must be everything from beginning with https to end of the line 
without \r\n and without the method (POST) and without the protocol version 
which is HTTP/1.1So first what i did in line 2: was a "sampler.getURL()" and 
print it out on console. It gaves me exact what i first thought is correct 
namely the URL staring with https://. I also looked on the view results tree 
what jmeter doing with the POST and it looked quite good. 
But my server said that the URL signature is wrong. Thus i've calculated the 
URL sign - and send withhin the request - but it was wrong.
Then i've noticed what jmeter was really sending namely "POST /path". This 
means jmeter has not sent the URL starting with "https://ip:port/path; but only 
POST /path.Maybe this is because im using an http-request-default-config 
element?
Well if jmeter sends the /path then i have changed in line 2: from 
"sampler.getURL()" to "sampler.getPath()" and then it worked.Mostly thats it - 
the rest was just making some static stuff more generic.
BrMarkus

Am Mittwoch, 4. Dezember 2019, 19:16:13 MEZ hat Felix Schumacher 
 Folgendes geschrieben:  
 
 
Am 04.12.19 um 11:33 schrieb glin...@live.com:
> As you correctly mentioned, "it's working perfect on bash". 
>
> Groovy knows nothing about the pipe symbol so you need to execute  bash -c
> command   and pass your
> whole command as the parameter, something like:
>
>
>> "/bin/bash -c \"echo -en \\\"https://my-url.com:\\\; | openssl smime
>> -sing -signer cert.crt -inkey cert.key -outform der -binary -md sha384
>> -out blah.p7\"".execute().text


Alternatively you could use groovy's magic to write the url to the stdin
of the openssl process by using something like

p = "openssl smime ...".execute()
p.withWriter { writer -> writer.println("https://...;) }
p.text

I find it more readable.  It is probably faster, too, as it doesn't need
to instantiate a shell.

On a side node, groovy's Process instances can be used together with a
pipe symbol inside groovy like the following

p = "date".execute() | "tr a-z A-Z".execute()
p.text

> Groovy neither knows your *$path* environment variable, if the environment
> variable exists and is available to JVM you can read its value using 
> System.getEnv()
>   
> function
>
> It might be easier to go for  OS Process Sampler
> 
>  
> , check out  How to Run External Commands and Programs Locally and Remotely
> from JMeter
> 
>   
> article for details. 
>
> And 

HLS 2.0 simulate user behaviour for each media segment by waiting on each media segment

[UserJMeter999]

Using HLS plugin 2.0
If we add think time (Constant Timer) to blazemeter bzm - HLS Sampler it
just waits for sending first sampler only(80 seconds). It is not able to
simulate user watching video to send child media segments at intervals. I
have video with 15 media segments all 15 requests sent to server in less
than a minute by HLS sampler even though i have below configs on sampler.
But in real time it is not the case where user watching video. Browser sends
these 15 media segments at different intervals.

Test plan
bzm - HLS Sampler
Constant Timer = 80 seconds

Settings on HLS sampler
Duration = whole Video (actual duration of video is 4 mins)
bandwidth/Resolution = Minimum



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