Passing command line parameter to the simulation

[chaitali phadnis]

Hi,

I have one simulation within which I have configured multiple scenarios and multiple loads. Based on the command line parameter, I want to decide which scenario to run etc. I tried passing the parameter -DscenarioToRun=abc but I am not getting the value in simulation. Am I doing something wrong?

Chaitali

[Stéphane Landelle]

Probably, but hard to tell as long as you don't share what you've done.

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[chaitali phadnis]

here's what the maven command looks like mvn clean install -DscenarioToRun=abc and in my scenario I am trying to access it as follows: 

val scenarioToRun = System.getProperty("scenarioToRun") scenarioToRun is null

[Stéphane Landelle]

This should be working. Which version do you use?

2014-07-08 1:32 GMT+02:00 chaitali phadnis <phadnis...@gmail.com>:

here's what the maven command looks like mvn clean install -DscenarioToRun=abc and in my scenario I am trying to access it as follows: 

val scenarioToRun = System.getProperty("scenarioToRun") scenarioToRun is null

[pandya ronak]

Hi All,

I am facing the same issue. I am using gatling-charts-highcharts-2.0.3.
I want that user can input 'Count, repeatCount, testServerUrl and definitionId' from command line while executing from Gatling. From command line I execute

> sudo JAVA_OPTS="-DuserCount=5 -DflowRepeatCount=5 -DdefinitionId=10220101 -DtestServerUrl='https://someurl.com'" sudo bash gatling.sh -s TestCL But it triggers only 1 action (default) not 5(user input from command line)

    val userCount = Integer.getInteger("userCount", 1).toInt
 
    val flowRepeatCount = Integer.getInteger("flowRepeatCount", 1).toInt

    val definitionId  = java.lang.Long.getLong("definitionId", 0L)
       
    val testServerUrl = System.getProperty("testServerUrl")

Can you pls help me to find why command line parameters are not working?

Thanks,
Ronak

[Tony Cruickshank]

Hi Pandya,

That's an overly complex command line. Have you tried:

JAVA_OPTS="-DuserCount=5 -DflowRepeatCount=5 -DdefinitionId=10220101 -DtestServerUrl='https://someurl.com'" ./gatling.sh -s TestCL

which assumes that gatling.sh is executable. Do chmod ug+x gatling.sh if it's not.

Regards,

Tony.

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[pandya ronak]

Hi Tony,
Thanks for the reply.

Executed this command
JAVA_OPTS="-DuserCount=5 -DflowRepeatCount=5 -DdefinitionId=10220101 -DtestServerUrl=https://someurl.com" ./gatling.sh -s TestCL
but gives following error:

The request class('TestCL') can not be found in the classpath.
Exception in thread "main" java.util.NoSuchElementException: head of empty list
        at scala.collection.immutable.Nil$.head(List.scala:337)
        at scala.collection.immutable.Nil$.head(List.scala:334)
        at io.gatling.app.Gatling.start(Gatling.scala:219)
        at io.gatling.app.Gatling$.fromMap(Gatling.scala:55)
        at io.gatling.app.Gatling$.runGatling(Gatling.scala:80)
        at io.gatling.app.Gatling$.runGatling(Gatling.scala:59)
        at io.gatling.app.Gatling$.main(Gatling.scala:51)
        at io.gatling.app.Gatling.main(Gatling.scala)

Thanks,
Ronak

[Tony Cruickshank]

Hi Ronak (and apologies for using the wrong name in my previous replies),

Is TestCL the full classpath to your class? You can try to run your test without specifying the -s option (which is just a shortcut to select the simulation, after all).

Also, if you're going to use -s <classpath>, you might want to add -m to avoid the prompts for name & description.

Regards,

Tony.

[pandya ronak]

Hi Tony,
Really sorry for the late reply, was busy on other stuffs.

I have tried on windows and it worked with this command.

set JAVA_OPTS=-DuserCount=3 -DflowRepeatCount=3 -DdefinitionId=10201

now,
it gives me this error (its not getting the value of 'definationid' which I pass thru command line)

body=
{
  "errors" : {
    "error" : "Unexpected character ('$' (code 36)): expected a valid value (num
ber, String, array, object, 'true', 'false' or 'null')\n at [Source: org.apache.
catalina.connector.CoyoteInputStream@31e6639f; line: 1, column: 19]"
  }
}
---- Errors --------------------------------------------------------------------

> status.find.in(200,304,201,202,203,204,205,206,207,208,209), but actually found 400

Here is my code,

class TestCLI extends Simulation {

    val userCount = Integer.getInteger("userCount", 1).

toInt
    val holdEachUserToWait = 2

    val flowRepeatCount = Integer.getInteger("flowRepeatCount", 1).toInt
    val definitionId  = java.lang.Long.getLong("definitionId", 0L)

     
    val testServerUrl = "Some URL"
    val envAuthenticationHeaderFromPostman = """Basic UGVREXW87uY2V0ZXN0OlBlcmWRcmdhbmNldGODKDE="""

    val httpProtocol = http
    ........
    ........
    ........
   
    val headers_0 = Map(........
    ........)

    val scn = scenario("T")
        .repeat (flowRepeatCount) {
            exec(http("Test")
            .post("""/api/wfo""")
            .headers(headers_0)
            .body(StringBody("""{"definitionId": $definitionId}"""))) // <== I think it didnt get the value of definition ID
            .pause(holdEachUserToWait)
        }                    

    setUp(scn.inject(atOnceUsers(userCount))).protocols(httpProtocol)
   
}

If I use 'DefinationID' value static(Define in code not passing thru cmd) it works fine, but doesn't work with command line argument. Can u pls take a look?

Thanks.

[pandya ronak]

Hi,

Even if I use

.body(StringBody("""{"definitionId": ${definitionId}}""")))

It gives this error

---- Response Time Distribution ------------------------------------------------

> t < 800 ms                                             0 (  0%)
> 800 ms < t < 1200 ms                                   0 (  0%)
> t > 1200 ms                                            0 (  0%)
> failed                                                 1 (100%)
---- Errors --------------------------------------------------------------------

> No attribute named 'definitionId' is defined                        1 (100.0%)

================================================================================

Thanks.

[Tony Cruickshank]

Hi Ronak,

If I understand correctly, using 

.body(StringBody("""{"definitionId": $definitionId}""")))

attempts to find an entry in the session map. However, you're not putting in the map, and presumably you'd need to use a feeder to do so.

Instead, the following might work

.body(StringBody("""{"definitionId": " + definitionId + "}"""")))

(i.e. just concatenate the definitionId variable into the string.) Note the quotes are probably wrong as I've not checked this.

Kind regards,

Tony.

[pandya ronak]

Hi Tony,

Thanks a lot for giving your precious time and help.
Still not getting the solution. Don't know where I m going wrong.

I have set 

.body(StringBody("""{"definitionId": " + definitionId + "}"""")))

I have executed this

set JAVA_OPTS=-DuserCount=2 -DflowRepeatCount=2 -DdefinitionId=1123612

but it throws this error:

body=
{
  "errors" : {
    "error" : "Can not construct instance of java.lang.Long from String value '
+ definitionId + ': not a valid Long value\n at [Source: org.apache.catalina.con
nector.CoyoteInputStream@1d4e804c; line: 1, column: 2] (through reference chain:
 tv.nativ.mio.api.model.workflow.create.NewWorkflow[\"definitionId\"])"
  }
}

I've tried with some modification in quotes and it throws this error:

body=
{
  "errors" : {
    "error" : "Unexpected character ('+' (code 43)): was expecting a colon to se
parate field name and value\n at [Source: org.apache.catalina.connector.CoyoteIn
putStream@3c496336; line: 1, column: 20]"
  }
}

Thanks once again,
Ronak

[Tony Cruickshank]

Our emails crossed in the ether :) Hopefully you've received my direct reply.

[pandya ronak]

Hi Tony,

Have tried on command prompt from windows operating system and Worked well....Thanks for the help.
this is the command which I have executed.

JAVA_OPTS=-DuserCount=2 -DflowRepeatCount=3 -DdefinitionId=102168 -DtestServerUrl=https://someURL -DenvAuthenticationHeaderFromPostman="Basic UWRZm9aGwsxFsB1V7RXK0OlB5cmZvcm1hbmNldGVzdDE="

Do you know how to execute same command for Linux? I have tried with this but it won't execute, takes null/1 as arguments :-(

sudo JAVA_OPTS=-DuserCount=2 -DflowRepeatCount=3 -DdefinitionId=102168 -DtestServerUrl=https://someURL -DenvAuthenticationHeaderFromPostman="Basic UWRZm9aGwsxFsB1V7RXK0OlB5cmZvcm1hbmNldGVzdDE=" sudo bash gatling.sh

I have printed the inputs and it takes this parameters as input (While in command prompt from Windows it works fine and takes parameters which we input)
**********************INPUT*************************************
User Count ====>>  1
Repeat Count ====>> 1
Definition ID ====>> 0
Environment URL ====>> null
Authentication Header ====>> null
***********************************************************

Thanks,
Ronak

[Tony Cruickshank]

Hi Ronak,

Partial good news.

There looks to be too many sudo and not enough quotes. :)

Have you tried:

JAVA_OPTS="-DuserCount=2 -DflowRepeatCount=3 -DdefinitionId=102168 -DtestServerUrl=https://someURL -DenvAuthenticationHeaderFromPostman='Basic UWRZm9aGwsxFsB1V7RXK0OlB5cmZvcm1hbmNldGVzdDE='" ./gatling.sh

(note single quotes for -DDenvAuthenticationHeaderFromPostman, to capture the spaces in the option value)

Kind regards,

Tony.

[pandya ronak]

Hi,

Yes I have tried with this (with  ./gatling.sh)

JAVA_OPTS="-DuserCount=2 -DflowRepeatCount=3 -DdefinitionId=102168 -DtestServerUrl='https://someURL' -DenvAuthenticationHeaderFromPostman='Basic UWRZm9aGwsxFsB1V7RXK0OlB5cmZvcm1hbmNldGVzdDE='"  ./gatling.sh

Gives this error,
GATLING_HOME is set to /opt/gatling-charts-highcharts-2.0.3

Error: Could not find or load main class UWRZm9aGwsxFsB1V7RXK0OlB5cmZvcm1hbmNldGVzdDE='

and If I Use this command (with sudo bash gatling.sh)

JAVA_OPTS="-DuserCount=2 -DflowRepeatCount=3 -DdefinitionId=102168 -DtestServerUrl='https://someURL' -DenvAuthenticationHeaderFromPostman='Basic UWRZm9aGwsxFsB1V7RXK0OlB5cmZvcm1hbmNldGVzdDE='" sudo bash gatling.sh

it runs but gives this input values (takes null and binary values as input)

**********************INPUT*************************************
User Count ====>>  1
Repeat Count ====>> 1
Definition ID ====>> 0
Environment URL ====>> null
Authentication Header ====>> null
***********************************************************

Thanks.

[pandya ronak]

Hey Tony,

Again good news, almost near to solve the problem.

Got the problem where i m stuck.
Its a Space related issue in passing parameters of Authentication Header. -DenvAuthenticationHeaderFromPostman='Basic UWRZm9aGwsxFsB1V7RXK0OlB5cmZvcm1hbmNldGVzdDE='"

It gets parameter till Environment URL but when 'Space' comes in parameter it throws error.
**********************INPUT*************************************
User Count ====>>  2
Repeat Count ====>> 3
Definition ID ====>> 10201
Environment URL ====>> https://SomeURL

Authentication Header ====>> null
***********************************************************

Is there any solution to remove space error?

Thanks,
Ronak