Unable to launch chrome, ie on node using Selenium grid

Question

I've hub and node running and I'm trying to run test on node for chrome browser, but it's failing with error: The path to the driver executable must be set by the webdriver.chrome.driver system property;

But I've set it. Following is the code which I'm using:

package seleniumgridpackage;

import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;

import org.openqa.selenium.Platform;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.ie.InternetExplorerDriver;
import org.openqa.selenium.remote.DesiredCapabilities;
import org.testng.Assert;
import org.testng.annotations.AfterTest;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;
import org.openqa.selenium.remote.RemoteWebDriver;


public class SeleniumGridTest {
    WebDriver driver;
    String baseUrl = "http://www.google.com";
    String expectedTitle = "Google";

    @BeforeTest
    public void setUp() throws MalformedURLException {
        File file = new File("C://Drivers//chromedriver.exe");
        //File file = new File("C://Drivers//IEDriverServer.exe");
        System.setProperty("webdriver.chrome.driver", file.getAbsolutePath());

        DesiredCapabilities cap = DesiredCapabilities.chrome();
        cap.setBrowserName("chrome");
        cap.setPlatform(Platform.VISTA);
        driver  = new RemoteWebDriver(new URL("http://x.x.x.x:5566/wd/hub"), cap);

    }

    @Test
    public void test(){
        driver.get(baseUrl);
        Assert.assertEquals(driver.getTitle(), expectedTitle);
    }

    @AfterTest
    public void tearDown(){
        driver.quit();
    }
}

Note: I've put chromedriver.exe in C://Drivers folder of both node and hub. Sams happens when I try with IE

Please help me understand what I'm doing wrong.

Answer 1

Everything is in how do you start the node. So First, do the usual:

java -jar -jar selenium-server-standalone-2.20.0.jar -role hub

Then start the node like this:

java -jar lib/selenium-server-standalone-2.20.0.jar -role webdriver -hub http://localhost:4444/grid/register -browser browserName="chrome",version=ANY,platform=WINDOWS,maxInstances=5 -Dwebdriver.chrome.driver=lib\chromedriver.exe 

more specifically: You have to start up the NODE with parameter browser and add -D parameter specifying the full path to the chromedriver

My huge thanks goes to John Naegle who answered similar question here on SO regarding the internet explorer - see here

Answer 2

I tried various combinations and finally found that the property needs be set at runtime.

To Start the node use : This will work for firefox

java -jar sel2.40.jar -role node -hub http://locahost:4443/grid/register -port 5556

To Start the node for IE, we need to specify the webdriver.ie.driver system property while starting the node :

java -Dwebdriver.ie.driver="D:\IEDriverServer.exe" -jar sel2.40.jar -role node -hub http://locahost:4443/grid/register -port 5556