java.net.ConnectException: Address already in use: no further information

[Magnus Jensen]

I am trying to run a "ping-test" against a static resource to test "the infrastructure".

my load model is as follows:

setUp(scn.inject(constantUsersPerSec(1500) during (10 seconds))).protocols(httpConf)

after som time running I get:

15:06:38.138 [WARN ] i.g.h.a.AsyncHandlerActor - Request 'shitload' failed: java.net.ConnectException: Address already in use: no further information

The Gatling version is 2.1.4 and 

What might be the cause?

[Stéphane LANDELLE]

You're probably running out of ephemeral ports.

Stéphane Landelle

Lead developer

slan...@gatling.io

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[Magnus Jensen]

Ok, thanx.

I am running from a Windows Server 2012 R2. 

Is there a way to "get more ephemeral ports"?

//Magnus

[Pierre DAL-PRA]

http://lmgtfy.com/?q=windows+change+ephemeral+port+range&l=1 :)

[Magnus Jensen]

Eh, sorry :-)

[Magnus Jensen]

Ok, I have increased the ephemeral ports to 65.000 but when I run a test with 1500 users per second in 10 seconds the first time it is ok. 

But when running it the second time I get:

java.net.ConnectException: Address already in use: no further information

 

When I run just one user I get the exception as well.

Do I need to terminate connections more than I have done in the example below? or tweak gatling.conf in someway? obviously the increase in ephemeral ports did not work.

package no.coop



import io.gatling.core.Predef._

import io.gatling.http.Predef._

import scala.concurrent.duration._



class isAlive extends Simulation{



  val httpConf = http

    .baseURL("http://grointtst.intrano.shell:88")

    .acceptHeader("text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8")

    .doNotTrackHeader("1")

    .acceptLanguageHeader("en-US,en;q=0.5")

    .acceptEncodingHeader("gzip, deflate")

    .userAgentHeader("Mozilla/5.0 (Windows NT 5.1; rv:31.0) Gecko/20100101 Firefox/31.0")



  val scn = scenario("isAliveSimulation")



    .exec(http("shellload")

    .get("/3mb.htm")

    .check(regex("8.png")))

  setUp(scn.inject(atOnceUsers(1))).protocols(httpConf)

  //setUp(scn.inject(constantUsersPerSec(1500) during (10 seconds))).protocols(httpConf)

}

[Magnus Jensen]

I also get:

java.net.ConnectException: No buffer space available (maximum       4 ( 0,27%)

connections reached?): connect