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Earlier days we can run Selenium test in multiple machine ONLY using Selenium 1 RC (The Project name called Selenium Grid). The biggest downside with Selenium Grid is that, it doesn’t support Webdriver. But now with Grid 2, both Selenium 1 and Webdriver are supported and we can run test in multiple machines. Grid 2 will allow you to do following
· Scale by distributing tests on several machines ( parallel execution ) · Manage multiple environments from a central point, making it easy to run the tests against a vast combination of browsers / OS. · Minimize the maintenance time for the grid by allowing you to implement custom hooks to leverage virtual infrastructure for instance.
Steps to run test in multiple machine using Grid 2 Step1 (HUB) Start the Selenium standalone server with following command
java -jar selenium-server-standalone-2.14.0.jar -role hub
Now the Command prompt window will look like this image If you could see the above screen shot, selenium server once started, it started as a Selenium grid Server. The hub will automatically start-up using port 4444 by default. To change the default port, you can add the optional parameter -port when you run the command. You can view the status of the hub by opening a browser window and navigating to: http://localhost:4444/grid/console Step2 (Node) Now start the node from the same Selenium standalone server package itself in command prompt, since Selenium standalone server package itself includes Hub, Webdrivers and RC
java -jar selenium-server-standalone-2.14.0.jar -role node  -hub http://localhost:4444/grid/register
Now the Console looks like this image   Now once you go back to your browser and check the link http://localhost:4444/grid/console it will look like this image   By default Grid 2 starts 11 browsers : 5 Firefox, 5 Chrome, 1 Internet Explorer. The maximum number of concurrent tests is set to 5 by default. Running Test using RC and Webdriver For the Selenium 1 RC nodes, you can continue to use the DefaultSelenium object and pass in the hub information
Selenium selenium = new DefaultSelenium(“localhost”, 4444, “*firefox”, “”);
Similarly for running test using Webdriver, use RemoteWebDriver instead of WebDriver and DesiredCapabilities object to define browser, OS version etc.
    DesiredCapabilities capabilities = new DesiredCapabilities();
Pass the code to RemoteWebdriver object also
WebDriver driver = new RemoteWebDriver(new URL("http://localhost:4444/wd/hub"), capability);
The Complete working code will look like this.
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.remote.RemoteWebDriver;
import org.openqa.selenium.remote.DesiredCapabilities;

class RemoteTest {

  public static void main(String[] args) throws Exception {
    // Change this to match the location of your server
    URL server = new URL("");

    DesiredCapabilities capabilities = new DesiredCapabilities();

    System.out.println("Connecting to " + server);

    WebDriver driver = new RemoteWebDriver(server, capabilities);


That’s it. Enjoy running Test in Distributed Environment !! Thanks, Karthik KK

Post Author: Karthik kk

8 Replies to “Running Test in Remote machine with new WebDriver functionality (Grid 2)”

  1. Hi Kartik,
    HAve u ever implemented the grid with Csharp
    I am a java guy – And using TestNG its very easily possible to implement grid
    Whereas with Csharp I am not able to find the correct tool

  2. Hi Karthick,
    I followed the same procedure and my scripts are running on nodes that i registered from my virtual box but they are not executing on remote machine.Any suggestions will be appreciated.

  3. This script is not running at my end.
    I am getting below Exception

    Exception in thread “main” org.openqa.selenium.SessionNotCreatedException: Unable to create new service: GeckoDriverService

    1. Hi
      I am also getting the same error.
      Were you able to find any solution.

      Kindly share the solution if you have any


    2. Hope i am not too late. Use this command to run standalone server

      java -jar -Dwebdriver.gecko.driver="\geckodriver.exe" .jar

  4. I am getting below exception

    org.openqa.selenium.SessionNotCreatedException: Unable to create new service: GeckoDriverService
    Build info: version: ‘3.7.1’, revision: ‘8a0099a’, time: ‘2017-11-06T21:07:36.161Z’
    System info: host: ‘COMP25’, ip: ‘’, ‘Windows 7’, os.arch: ‘x86’, os.version: ‘6.1’, java.version: ‘1.8.0_144’
    Driver info: driver.version: unknown
    Command duration or timeout: 69 milliseconds

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