Gatling multiple scenarios with multiple concurrent users

[sachinb...@gmail.com]

Hi team,

I am new to Gatling and Gatling frontline. I have a simulation with 4 different  objects defined. I need to run scenario a and b with 1 concurrent user and scenario c and d with 1000 concurrent users . is there a way i can do that in a single simulation? I have tried the code below but it runs the simulation for 1 users only, is there a better way to run these kind of simulations.

 Scenario explanation: I want the Object A and B to run for 1 user , then get the Install and appId and run the other two scenarios for 100 users. 

Note: I am also passing two ID's from scenario A and B to Scenario C,D.

Test code:

val appUsers = 1

val eventUsers = 100

var installId= " "

var AppId = " "

object A {

val  a = exec (http("Scenario A")

.get("/something"))

.check(bodyString.transform(str => str.replace("\"", "")).saveAs("installId"))

.exec((session => {
installId = session("installId").as[String].trim
session
}))

}

object B {

val  ab= exec (http("Scenario B")

.get("/something")

.check(bodyString.transform(str => str.replace("\"", "")).saveAs("AppID"))

.exec((session => {
installId = session("installId").as[String].trim
session

}))

}

object C {

.exec(_.set("installId", installId))

val  c = exec (http("Scenario C")

.get("/something/${installId}"))

}

object D {

val  d = exec(_.set("AppID", AppId)) 

.exec (http("Scenario D")

.get("/something/${AppId}"))

}

val scenario1 = scenario(" A and B").exec(A.a ,  B.b)

val scenario2 = scenario("C and D").exec(C.c , D.d)

setUp(
scenario1.inject(rampConcurrentUsers(0) to appUsers during (appRunTime seconds)),
scenario2inject(nothingFor(20 seconds) , rampUsers(eventUsers) during (eventUsers seconds))
).protocols(httpProtocol)

Thanks,
Sachin Balusu

[Stéphane LANDELLE]

No idea what your problem is. Have you read the doc? https://gatling.io/docs/current/general/simulation_setup/#closed-model

scenario1.inject(constantConcurrentUsers(1) during (100 seconds)),
scenario2inject(constantConcurrentUsers(1000) during (100 seconds))

Stéphane Landelle Chief Technical Officer twitter: @slandelle site: gatling.io

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