Selenium网格并行执行线程本地WebDriver会话不创建异常：无法创建新服务：GeckoDriverService

Question

使用selenium grid在windows节点和mac节点上并行运行测试将通过所有测试，但无法运行并跳过mac Firefox浏览器或windows Firefox浏览器的第一个测试过滤器MoreResultsBySquarefeet。它不断抛出这个错误。openqa。硒。SessionNotCreatedException:无法创建新服务：GeckoDriverService我正在使用最新的java、最新的selenium驱动程序、最新的浏览器驱动程序和最新的浏览器版本。我在启动json selenium网格文件的同一文件夹中有所有驱动程序，并且我的代码系统属性指向同一文件夹。我还在windows环境变量中的路径和mac上的路径中设置了文件夹。有人遇到过这个错误吗？你是如何解决的？

  public class TestBase {
       private static ThreadLocal<WebDriver> driverThread = new ThreadLocal<>();

    public static String whichNodeURL = "";
    public static String nodeURL = "http://xxxx:4444/wd/hub";
    public static String macNodeURL = "http://xxxx:5555/wd/hub";
    public static String winNodeURL = "http://xxxx:5554/wd/hub";

    DesiredCapabilities capabilities = new DesiredCapabilities();

    @SuppressWarnings({ "rawtypes"})
    @BeforeMethod (alwaysRun=true)
    //Use before method instead of before class or before test so each method/test will open in new browser; 
    //This was tested and found before method was the only one that works.
        @Parameters("browser")
    public final void setDriver(String browser) throws IOException, InterruptedException{

            ReadProperties.retrieveGlobalProperties();

        if (ReadProperties.globalProp.getProperty("webautomation").contains("yes") && ReadProperties.globalProp.getProperty("mobileautomation").contains("no"))
        {
            if(browser.contains("winfirefox"))
            {

                System.setProperty("webdriver.gecko.driver", ReadProperties.globalProp.getProperty("pcgeckodriver"));
                FirefoxOptions firefoxOptions = new FirefoxOptions();
                firefoxOptions.setCapability("platform", "WINDOWS");
                firefoxOptions.setCapability("browser", "firefox");
                firefoxOptions.setCapability("newCommandTimeout", 5000);
                firefoxOptions.setCapability(FirefoxDriver.MARIONETTE, true);
                firefoxOptions.setBinary("C:\\Program Files\\Mozilla Firefox\\firefox.exe");    
                whichNodeURL=winNodeURL;    
                try
                {
                    driverThread.set(new RemoteWebDriver(new URL(whichNodeURL), firefoxOptions));
                } catch (MalformedURLException e) {
                    e.printStackTrace();
                }


            }
            else if(browser.contains("macfirefox"))
            {
                System.setProperty("webdriver.gecko.driver", ReadProperties.globalProp.getProperty("macgeckodriver"));
                FirefoxOptions macfirefoxOptions = new FirefoxOptions();
                macfirefoxOptions.setCapability("platform", "MAC");
                macfirefoxOptions.setCapability("browser", "firefox");
                macfirefoxOptions.setCapability("newCommandTimeout", 5000);
                macfirefoxOptions.setCapability(FirefoxDriver.MARIONETTE, true);
                macfirefoxOptions.setBinary("/Applications/Firefox.app/Contents/MacOS/firefox-bin");
                whichNodeURL=macNodeURL;

                try
                {
                    driverThread.set(new RemoteWebDriver(new URL(whichNodeURL), macfirefoxOptions));
                } catch (MalformedURLException e) {
                    e.printStackTrace();
                }


            }
            else if (browser.contains("winchrome"))
            {
                System.setProperty("webdriver.chrome.driver", ReadProperties.globalProp.getProperty("pcchromedriver"));
                ChromeOptions chromeOptions = new ChromeOptions();
                chromeOptions.setCapability("platform", "WINDOWS");
                chromeOptions.setCapability("browser", "chrome");
                chromeOptions.setCapability("newCommandTimeout", 5000);
                whichNodeURL=winNodeURL;

                try
                {
                    driverThread.set(new RemoteWebDriver(new URL(whichNodeURL), chromeOptions));
                } catch (MalformedURLException e) {
                    e.printStackTrace();
                }

            }
            else if (browser.contains("macchrome"))
            {
                System.setProperty("webdriver.chrome.driver", ReadProperties.globalProp.getProperty("macchromedriver"));
                ChromeOptions macchromeOptions = new ChromeOptions();
                macchromeOptions.setCapability("platform", "MAC");
                macchromeOptions.setCapability("browser", "chrome");
                macchromeOptions.setCapability("newCommandTimeout", 5000);
                whichNodeURL=macNodeURL;

                try
                {
                    driverThread.set(new RemoteWebDriver(new URL(whichNodeURL), macchromeOptions));
                } catch (MalformedURLException e) {
                    e.printStackTrace();
                }

            }
                String weburl = ReadProperties.globalProp.getProperty("weburl");
                this.driverThread.get().get(weburl);
                Thread.sleep(1000);
                this.driverThread.get().manage().window().maximize(); 
                Thread.sleep(1000);
           }
      }
    }
        public static WebDriver getDriver() {
        return driverThread.get();
    }
        @AfterMethod(alwaysRun=true) 
    public static void OnFailure(ITestResult testResult) throws IOException { 
        if (testResult.getStatus() == ITestResult.FAILURE) 
        { 
            System.out.println(testResult.getStatus()); 
        } 
    } 


@AfterMethod(alwaysRun=true)
//Use after method instead of after class or after test so each method/test will open in new browser; 
//This was tested and found after method was the only one that works.   
public void tearDown() {

        getDriver().quit();
}
}






  public class FilterMoreResultsBySquareFeet extends TestBase{

 static SoftAssert softAssert = new SoftAssert();
 final static Logger log = 
 LogManager.getLogger(FilterMoreResultsBySquareFeet.class);


static String className = 
FilterMoreResultsBySquareFeet.class.getSimpleName();
static Date date1= new Date();
static String originaltimestamp = new Timestamp(date1.getTime()).toString();
static String timestamp = originaltimestamp.replace(':', 'x').substring(11);
static String foldername = className+timestamp;
static String errorname = "";

  @Parameters("browser")
@Test(groups= {"smoke", "regression"}, dataProvider = "getData") 
public void filterResultsBySqFeet (String searchkeyword, String minsqfeet, String maxsqfeet) throws IOException, InterruptedException
{
    WebDriver webdriver = getDriver();
    Search.searchByCity(webdriver, searchkeyword);
    FilterMoreResults_Page.clickOpenMoreFilters(webdriver);
    FilterMoreResults_Page.filterBySqFeet(webdriver, minsqfeet, maxsqfeet);
    FilterMoreResults_Page.applyMoreFilters(webdriver);
    String diditfilter = FilterMoreResults_Page.verifyFilterBySqFeet(webdriver, minsqfeet, maxsqfeet);

    try{
        Assert.assertEquals(diditfilter, "yes");
    } 
    catch(AssertionError e)
    { 
        log.error("Didn't filter by square feet.", e.getMessage());
        errorname = "didntfilterbysqft";
        ScreenshotURL.screenshotURL(webdriver, foldername, errorname);
        softAssert.fail();
    }

       softAssert.assertAll();

}


  TESTNG FILE
  <?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">
<suite name="XOME Suite" parallel="tests" verbose="10" thread-count="2">

<test name = "Win Firefox Tests" preserve-order="true" group-by-instances="true">
<parameter name="browser" value="winfirefox">
    <classes>
    <class name="webTests.FilterMoreResultsBySquareFeet" />
        <class name="webTests.FilterMoreResultsByKeyword" />
        <class name="webTests.FilterMoreResultsByYear" />
    </classes>
</parameter>
</test>

<test name = "Mac Firefox Tests" preserve-order="true" group-by-instances="true">
<parameter name="browser" value="macfirefox">
    <classes>
    <class name="webTests.FilterMoreResultsBySquareFeet" />
        <class name="webTests.FilterMoreResultsByKeyword" />
        <class name="webTests.FilterMoreResultsByYear" />
    </classes>
</parameter>
</test>

<test name = "Win Chrome Tests" preserve-order="true" group-by-instances="true">
<parameter name="browser" value="winchrome">
    <classes>
    <class name="webTests.FilterMoreResultsBySquareFeet" />
        <class name="webTests.FilterMoreResultsByKeyword" />
        <class name="webTests.FilterMoreResultsByYear" />
    </classes>
</parameter>
</test>
<test name = "Mac Chrome Tests" preserve-order="true" group-by-instances="true">
<parameter name="browser" value="macchrome">
    <classes>
    <class name="webTests.FilterMoreResultsBySquareFeet" />
        <class name="webTests.FilterMoreResultsByKeyword" />
    <class name="webTests.FilterMoreResultsByYear" />
    </classes>
</parameter>
</test>

 macnode.json
 {
  "capabilities":
 [
  {
  "browserName": "firefox",
  "marionette": true,
  "maxInstances": 1,
  "version": 66,
  "platform": "MAC",
  "seleniumProtocol": "WebDriver"
},
{
  "browserName": "chrome",
  "maxInstances": 1,
  "version": 73,
  "platform": "MAC",
  "seleniumProtocol": "WebDriver"
},
{
  "browserName": "safari",
  "technologyPreview": false,
  "platform": "MAC",
  "maxInstances": 1,
  "seleniumProtocol": "WebDriver"
}
],
"proxy": "org.openqa.grid.selenium.proxy.DefaultRemoteProxy",
"maxSession": 1,
"port": 5555,
"register": true,
"registerCycle": 5000,
"hub": "http://xxxx:4444",
"nodeStatusCheckTimeout": 5000,
"nodePolling": 5000,
"role": "node",
"cleanUpCycle": 5000,
"timeout": 5000,
"unregisterIfStillDownAfter": 60000,
"downPollingLimit": 2,
"debug": false,
"servlets" : [],
"withoutServlets": [],
"custom": {}
}

hub.json
{
"host": null,
"port": 4444,
"newSessionWaitTimeout": -1,
"servlets" : [],
"prioritizer": null,
"capabilityMatcher": 
"org.openqa.grid.internal.utils.DefaultCapabilityMatcher",
"throwOnCapabilityNotPresent": true,
"nodePolling": 5000,
"cleanUpCycle": 5000,
"timeout": 300000,
"browserTimeout": 0,
"maxSession": 1
}

java-jarselenium-server-standalone-3.141。59.jar-role hub-hubConfig hub。json

java-Dwebdriver。铬。driver=“C:\\seleniumgrid\\chromedriver.exe”-Dwebdriver。壁虎。driver=“C:\\seleniumgrid\\geckodriver.exe”-Dwebdriver。ie.driver=“C:\\seleniumgrid\\IEDriverServer.exe”-Dwebdriver。边driver=“C:\\seleniumgrid\\MicrosoftWebDriver.exe”-jar C:\\seleniumgrid\\selenium-server-standalone-3.141。59.jar-角色节点-节点图C:\\seleniumgrid\\WindowsNode。json

java-Dwebdriver。铬。driver=“/Users/abc/seleniumgrid/chromedriver”-Dwebdriver。壁虎。driver=“/Users/abc/seleniumgrid/geckodriver”-jar/Users/abc/seleniumgrid/selenium-server-standalone-3.141。59.jar-role节点-nodeConfig/Users/abc/seleniumgrid/MacNode。json

org.openqa.selenium.SessionNotCreatedException: Unable to create new service: GeckoDriverService

[错误]测试运行： 10，失败： 2，错误： 0，跳过： 1，时间流逝： 287.762 s

Answer 1

Ok after struggling with it for several days and trying everything, I got it to work. Hope this helps someone too. There wasn't much info out there on solving this error and the error didn't tell me much where it was wrong.
Here's what I changed.
1. Use the hub url for creating your remotewebdriver for each browser and do not use the node url.
    public static String nodeURL = "http://xxxx:4444/wd/hub";
    public static String macNodeURL = "http://xxxx:4444/wd/hub";
    public static String winNodeURL = "http://xxxx:4444/wd/hub";
2. Add this to the node json files 

        {
      "browserName": "firefox",
      "marionette": true,
      "maxInstances": 1,
      "version": 66,
      "platform": "WINDOWS",
      "seleniumProtocol": "WebDriver",
      "webdriver.gecko.driver": "C:/seleniumgrid/geckodriver.exe",
      "binary":"C:/Program Files/Mozilla Firefox/firefox.exe"
    },

        {
      "browserName": "firefox",
      "marionette": true,
      "maxInstances": 1,
      "version": 66,
      "platform": "MAC",
      "seleniumProtocol": "WebDriver",
      "webdriver.gecko.driver": "/Users/angee/seleniumgrid/geckodriver",
      "binary": "/Applications/Firefox.app/Contents/MacOS/firefox-bin"
    },


3. Set this in your code 
firefoxOptions.setBinary("C:/Program Files/Mozilla Firefox/firefox.exe");
                    macfirefoxOptions.setBinary("/Applications/Firefox.app/Contents/MacOS/firefox-bin");