Selenium Grid：org.openqa.selenium.WebDriverException：转发新会话时出错用于设置功能的 VM 池为空

我正在尝试使用 Cucumber 在硒网格上进行 POC。我收到此错误： 转发新会话时出错 用于设置功能的虚拟机池为空

这是我的示例代码：

公共静态无效configureServer（）{

    GridHubConfiguration gridHubConfig = new GridHubConfiguration();
    //gridHubConfig.role = "hub";
    gridHubConfig.host = "127.0.0.1";
    gridHubConfig.port = 4444;
    gridHubConfig.newSessionWaitTimeout = 150000;
    Hub myHub = new Hub(gridHubConfig);
    myHub.start();

    GridNodeConfiguration gridNodeConfig = new GridNodeConfiguration();
    gridNodeConfig.hub = "http://127.0.0.1:4444/grid/register";
    gridNodeConfig.host = "xxxx"; //my ip address
    gridNodeConfig.port = 5566;
    gridNodeConfig.role = "webdriver";
    RegistrationRequest req = RegistrationRequest.build(gridNodeConfig);
    req.getConfiguration();
    req.validate();
    RegistrationRequest.build(gridNodeConfig);

    SelfRegisteringRemote remote = new SelfRegisteringRemote(req);
    remote.setRemoteServer(new SeleniumServer(gridNodeConfig));
    remote.startRemoteServer();
    remote.startRegistrationProcess();

    System.out.println("Node Registered to Hub..............");
}

能力：

        capabilities.setBrowserName("chrome");
        capabilities.setPlatform(Platform.MOJAVE);
        capabilities.setVersion("91.0.4472.114");
        capabilities.setCapability(CapabilityType.ACCEPT_SSL_CERTS, true);

驱动程序初始化：

            HubNodeConfiguration.configureServer();
            System.setProperty("webdriver.chrome.driver","xxx/chromedriver");
            threadLocalDriver.set(new RemoteWebDriver(new URL("http://localhost:9090 
            /wd/hub"),capabilities));
             

已尝试并遵循此处提供的答案（Selenium Grid +转发新会话时出错 用于设置功能的虚拟机池为空 https://stackoverflow.com/questions/34217563/selenium-grid-error-forwarding-the-new-session-empty-pool-of-vm-for-setup-capab）但运气不好

详细代码请参考我的Git Repo：https://github.com/rkhanna1401/cucumber_selenium_grid https://github.com/rkhanna1401/cucumber_selenium_grid

您的代码存在多个问题。简而言之，您仅在用于创建 WebDriver 的所需功能对象中硬编码了许多操作系统平台信息，但 Grid Hub 没有进行这些更改。

我还注意到您的代码库正在尝试与在不同端口中运行的集线器进行通信，但您的集线器正在不同的端口中运行。

我还注意到您的测试代码没有等待节点注册到集线器。我有一个快速黑客添加了一个睡眠来促进这一点，但是您可以采用复杂的机制，例如轮询集线器以查看节点是否已注册等，

您需要使用以下 git diff 内容创建一个补丁文件，然后可以将其应用到您的代码库。

这是一个 git diff，您可以将其应用于您的项目来解决问题

From 7d718cea160e7feac2fab8526f8578553d697426 Mon Sep 17 00:00:00 2001
From: Krishnan Mahadevan <Krishnan.Mahadevan>
Date: Sat, 26 Jun 2021 19:46:33 +0530
Subject: [PATCH] Changes needed

---
 .../java/WebdriverBase/GridDriverManager.java     | 15 +++++----------
 .../java/WebdriverBase/HubNodeConfiguration.java  | 12 +++++++++---
 2 files changed, 14 insertions(+), 13 deletions(-)

diff --git a/src/main/java/WebdriverBase/GridDriverManager.java b/src/main/java/WebdriverBase/GridDriverManager.java
index 58a8052..4102ac3 100644
--- a/src/main/java/WebdriverBase/GridDriverManager.java
+++ b/src/main/java/WebdriverBase/GridDriverManager.java
@@ -96,7 +96,7 @@ public class GridDriverManager {
        }
        if (browserType.equalsIgnoreCase("Chrome")) {
            try {
-               System.setProperty("webdriver.chrome.driver","/Users/rishikhanna/Documents/cucumber/shopping/Driver/chromedriver");
+//             System.setProperty("webdriver.chrome.driver","/Users/rishikhanna/Documents/cucumber/shopping/Driver/chromedriver");
            } catch (Exception e) {
                e.printStackTrace();
            }
@@ -112,9 +112,8 @@ public class GridDriverManager {
 //            chromePrefs.put("profile.default_content_settings.popups", 0);
 //            ChromeOptions options = new ChromeOptions();
 //            options.setExperimentalOption("prefs", chromePrefs);
-            capabilities.setBrowserName("chrome");
-            capabilities.setPlatform(Platform.MOJAVE);
-            capabilities.setVersion("91.0.4472.114");
+
+            capabilities.merge(DesiredCapabilities.chrome());
             capabilities.setCapability(CapabilityType.ACCEPT_SSL_CERTS, true);
           //  capabilities.setCapability(ChromeOptions.CAPABILITY, options);
        }
@@ -130,9 +129,6 @@ public class GridDriverManager {
        if (platformType.equalsIgnoreCase("WINDOWS")) {
            capabilities.setPlatform(Platform.WINDOWS);
        }
-       if (platformType.equalsIgnoreCase("MAC")) {
-           capabilities.setPlatform(Platform.MOJAVE);
-       }
 
        //capabilities.setVersion(getValFromJson(jsonObject,"version"));
        return capabilities;
@@ -149,7 +145,7 @@ public class GridDriverManager {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
-       setDriver("chrome", "WINDOWS");
+       setDriver("chrome", "MAC");
        return threadLocalDriver.get();
    }
 
@@ -159,8 +155,7 @@ public class GridDriverManager {
        {
            try {
                HubNodeConfiguration.configureServer();
-               System.setProperty("webdriver.chrome.driver","/Users/rishikhanna/Documents/cucumber/shopping/Driver/chromedriver");
-               threadLocalDriver.set(new RemoteWebDriver(new URL("http://localhost:9090/wd/hub"),capabilities));
+               threadLocalDriver.set(new RemoteWebDriver(new URL("http://localhost:4444/wd/hub"),capabilities));
                threadLocalDriver.get().manage().timeouts().implicitlyWait(10,TimeUnit.SECONDS);
            } catch (MalformedURLException e) {
                e.printStackTrace();
diff --git a/src/main/java/WebdriverBase/HubNodeConfiguration.java b/src/main/java/WebdriverBase/HubNodeConfiguration.java
index 174b216..2725bba 100644
--- a/src/main/java/WebdriverBase/HubNodeConfiguration.java
+++ b/src/main/java/WebdriverBase/HubNodeConfiguration.java
@@ -4,6 +4,7 @@ import java.io.File;
 import java.net.MalformedURLException;
 import java.net.URL;
 
+import java.util.concurrent.TimeUnit;
 import org.openqa.grid.common.GridRole;
 import org.openqa.grid.common.RegistrationRequest;
 import org.openqa.grid.internal.utils.SelfRegisteringRemote;
@@ -30,10 +31,10 @@ public class HubNodeConfiguration {
        myHub.start();
 
        GridNodeConfiguration gridNodeConfig = new GridNodeConfiguration();
-       gridNodeConfig.hub = "http://127.0.0.1:4444/grid/register";
-       gridNodeConfig.host = "xxxx"; //my ip address
+       gridNodeConfig.hub = "http://localhost:4444";
+       gridNodeConfig.host = "localhost"; //my ip address
        gridNodeConfig.port = 5566;
-       gridNodeConfig.role = "webdriver";
+       gridNodeConfig.role = "node";
        RegistrationRequest req = RegistrationRequest.build(gridNodeConfig);
        req.getConfiguration();
        req.validate();
@@ -44,6 +45,11 @@ public class HubNodeConfiguration {
        remote.startRemoteServer();
        remote.startRegistrationProcess();
 
+       try {
+           TimeUnit.SECONDS.sleep(10);
+       } catch (InterruptedException e) {
+           e.printStackTrace();
+       }
        System.out.println("Node Registered to Hub..............");
    }
 }
-- 
2.24.3 (Apple Git-128)+GitX