the correct way to use request groups in gatling2 M3a

Gatling (Open-Source)
1

hi again, i used the convenient way of grouping requests in gatling 1 and would like to do something like that now.

but when i do something like

val scn = scenario(“Some scenario”)
group(“group 1”) {
exec(http(“Open page”)
.get("/page")
.headers(headers_73))
.pause(0, 7)
}
.group(“other page”) {
exec(http(“Open other page”)
.get("/promotions")
.headers(headers_73)
)
}

the result is

Simulation wpl20.TestScenario started…

16:45:13.737 [DEBUG] o.j.n.c.s.n.SelectorUtil - Using select timeout of 500
16:45:13.741 [DEBUG] o.j.n.c.s.n.SelectorUtil - Epoll-bug workaround enabled = false
16:45:14.119 [DEBUG] o.j.n.c.DefaultChannelFuture - The dead lock checker in DefaultChannelFuture has been disabled as requested at your own risk.
16:45:14.201 [DEBUG] c.n.h.c.p.n.NettyAsyncHttpProvider -
Non cached request
DefaultHttpRequest(chunked: false)
GET /KQUcD HTTP/1.1
Host: goo.gl
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,/;q=0.8
Accept-Language: en-US,en;q=0.5
Connection: keep-alive
Accept-Encoding: gzip
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:16.0) Gecko/20100101 Firefox/16.0

using Channel
[id: 0xc0a4efa7]

16:45:14.302 [DEBUG] c.n.h.c.p.n.NettyAsyncHttpProvider -

Request DefaultHttpRequest(chunked: false)
GET /KQUcD HTTP/1.1
Host: goo.gl
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,/;q=0.8
Accept-Language: en-US,en;q=0.5
Connection: keep-alive
Accept-Encoding: gzip
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:16.0) Gecko/20100101 Firefox/16.0

Response DefaultHttpResponse(chunked: false)
HTTP/1.1 301 Moved Permanently
Content-Type: text/html; charset=UTF-8
Pragma: no-cache
Expires: Mon, 01 Jan 1990 00:00:00 GMT
Location: http://gatling-tool.org/2.0.0-M3
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
X-XSS-Protection: 1; mode=block
Server: GSE
Cache-Control: no-cache, no-store, max-age=0, must-revalidate
Age: 124
Content-Length: 214

16:45:14.304 [DEBUG] c.n.h.c.p.n.NettyConnectionsPool - Adding uri: http://goo.gl:80 for channel [id: 0xc0a4efa7, /172.29.46.144:56089 => goo.gl/173.194.112.196:80]
16:45:14.319 [INFO ] i.g.c.r.Runner - Total number of users : 1
16:45:14.323 [INFO ] i.g.c.r.t.Terminator - Initializing
16:45:14.324 [INFO ] i.g.c.r.t.Terminator - Expecting 1 EndUser messages to terminate
16:45:14.324 [INFO ] i.g.c.r.t.Terminator - Initialized
16:45:14.336 [INFO ] i.g.c.r.w.FileDataWriter - Initializing
16:45:14.337 [INFO ] i.g.c.r.w.ConsoleDataWriter - Initializing
16:45:14.340 [INFO ] i.g.c.r.t.Terminator - DataWriter registered
16:45:14.340 [INFO ] i.g.c.r.t.Terminator - DataWriter registered
16:45:14.340 [INFO ] i.g.c.r.w.FileDataWriter - Going on with initialization after Terminator registration
16:45:14.341 [INFO ] i.g.c.r.w.ConsoleDataWriter - Going on with initialization after Terminator registration
16:45:14.349 [INFO ] i.g.c.r.w.ConsoleDataWriter - Initialized
16:45:14.350 [INFO ] i.g.c.r.w.FileDataWriter - Initialized
16:45:14.351 [DEBUG] i.g.c.r.Runner - Launching All Scenarios
16:45:14.358 [DEBUG] i.g.c.r.Runner - Finished Launching scenarios executions
16:45:14.362 [INFO ] i.g.c.a.UserStart - Start user #0
16:45:14.364 [INFO ] i.g.c.a.UserEnd - End user #0
16:45:14.367 [INFO ] i.g.c.r.t.Terminator - Asking DataWriters to flush

2

Hi,

Which version do you use?

3

Sorry, it was in the title.

4

That’s just a race condition with the timer asking to display the console info one last time just after it was asked for shutdown.
Just ignore it, we’ll clean this up in the next release.

Thanks for reporting.

5

thank you for fast reply

but i expect the scenarios to actually send requests ) and they dont do that if i try to use groups

here is an example scenario

package wpl20

import io.gatling.http.Predef._
import io.gatling.core.scenario.Simulation
import io.gatling.core.Predef._
import scala.concurrent.duration._
import bootstrap._
import assertions._

class TestScenario extends Simulation {

val httpConf = http
.baseURL(“http://edition.cnn.com”)
.acceptHeader(“text/html,application/xhtml+xml,application/xml;q=0.9,/;q=0.8”)
.acceptEncodingHeader(“gzip, deflate”)
.acceptLanguageHeader(“en-US,en;q=0.5”)
.connection(“keep-alive”)
.userAgentHeader(“Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/27.0.1453.116 Safari/537.36”)
.disableFollowRedirect

val scn = scenario(“Navigation”)
group(“Home page”) {
exec(http(“Open home page”)
.get("/")
.headers(headers_73))
.pause(0, 7)
}
group(“world page”) {
exec(http(“Open world page”)
.get("/WORLD/")
.headers(headers_73)
)
}

setUp(scn.inject(ramp(2 users) over (30 seconds))).protocols(httpConf)

}

6

There’s dots missing in front of your group method calls (just like in Gatling 1).

val scn = scenario(“Navigation”)
.group(“Home page”) {
exec(http(“Open home page”)
.get("/")
.headers(headers_73))
.pause(0, 7)
}
.group(“world page”) {
exec(http(“Open world page”)
.get("/WORLD/")
.headers(headers_73)
)
}