Selenium Grid：“找不到此机器的非环回 ip4 地址”和“发生了非法反射访问操作”

Posted 2023-02-26

【中文标题】Selenium Grid：“找不到此机器的非环回 ip4 地址”和“发生了非法反射访问操作”

【英文标题】：Selenium Grid: "Could not find a non-loopback ip4 address for this machine" and "An illegal reflective access operation has occurred"

【发布时间】：2018-11-03 16:01:39

【问题描述】：

我正在尝试在 Windows10 中设置带有集线器的 Selenium Grid，在 Ubuntu 中设置节点。我已经在 virtualbox 中安装了 ubuntu（在我的主机 win10 中运行）。当我尝试注册节点时，出现“找不到此机器的非环回 ip4 地址”的错误。我对这个问题一无所知。请帮忙解决。

我在论坛中找到了类似的问题，但没有明确的解决方案。

当我连接到 LAN 时，收到以下消息。

org.openqa.selenium.WebDriverException: Cound not find a non-loopback ip4 address for this machine

如果我切换到 Wifi，则会出现以下不同的错误。

-VirtualBox:~/Documents$ java -Dwebdriver.gecko.driver="/home/mehamgn/Documents/drivers/geckodriver/" -jar selenium-server-standalone-3.12.0.jar -role node -nodeConfig grid_node.json
18:54:46.792 INFO [GridLauncherV3.launch] - Selenium build info: version: '3.12.0', revision: '7c6e0b3'
18:54:46.860 INFO [GridLauncherV3$3.launch] - Launching a Selenium Grid node on port 5555
2018-05-24 18:54:51.656:INFO::main: Logging initialized @14625ms to org.seleniumhq.jetty9.util.log.StdErrLog
18:54:55.286 INFO [SeleniumServer.boot] - Selenium Server is up and running on port 5555
18:54:55.294 INFO [GridLauncherV3$3.launch] - Selenium Grid node is up and ready to register to the hub
18:54:55.383 INFO [SelfRegisteringRemote$1.run] - Starting auto registration thread. Will try to register every 10000 ms.
18:54:55.388 INFO [SelfRegisteringRemote.registerToHub] - Registering the node to the hub: http://localhost:4444/grid/register
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.openqa.selenium.json.BeanToJsonConverter (file:/home/mehamgn/Documents/selenium-server-standalone-3.12.0.jar) to method sun.reflect.annotation.AnnotatedTypeFactory$AnnotatedTypeBaseImpl.getDeclaredAnnotations()
WARNING: Please consider reporting this to the maintainers of org.openqa.selenium.json.BeanToJsonConverter
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
18:55:00.088 INFO [SelfRegisteringRemote$1.run] - Couldn't register this node: Error sending the registration request: Failed to connect to localhost/127.0.0.1:4444
18:55:10.159 INFO [SelfRegisteringRemote$1.run] - Couldn't register this node: The hub is down or not responding: Failed to connect to localhost/127.0.0.1:4444
18:55:20.171 INFO [SelfRegisteringRemote$1.run] - Couldn't register this node: The hub is down or not responding: Failed to connect to localhost/127.0.0.1:4444
18:55:30.181 INFO [SelfRegisteringRemote$1.run] - Couldn't register this node: The hub is down or not responding: Failed to connect to localhost/127.0.0.1:4444
18:55:40.185 INFO [SelfRegisteringRemote$1.run] - Couldn't register this node: The hub is down or not responding: Failed to connect to localhost/127.0.0.1:4444
18:55:50.198 INFO [SelfRegisteringRemote$1.run] - Couldn't register this node: The hub is down or not responding: Failed to connect to localhost/127.0.0.1:4444

nodeConfig JSON 文件

    "capabilities":
[
    
        "browserName":"firefox",
        "version":"60.0.1",
        "maxInstances":1
        ,
        
            "browserName":"chrome",
            "version":"66.0.3359.181",
            "maxInstances":1
            ],
            "port":5555,
            "hubHost":"192.168.2.8",
            "hubPort":4444,
            "registerCycle":10000,
            "register":true,
            "timeout":0,
            "maxSessions":2
        

【问题讨论】：

Don't do this

@DebanjanB 已更新为实际文本。很抱歉给您带来不便。

【参考方案1】：

这第一条错误信息...

org.openqa.selenium.WebDriverException: Cound not find a non-loopback ip4 address for this machine

...表示由于 /etc/hosts (Ubuntu) 文件或 \WINDOWS\system32\drivers\etc 中可能发生的变化，在读取 ip4 地址时出现了一些问题\hosts (Windows) 文件。

你可以在Selenium hub fails loading giving an error could not find non loopback ip address找到类似的讨论

第二条错误信息...

18:54:55.388 INFO [SelfRegisteringRemote.registerToHub] - Registering the node to the hub: http://localhost:4444/grid/register
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.openqa.selenium.json.BeanToJsonConverter (file:/home/mehamgn/Documents/selenium-server-standalone-3.12.0.jar) to method sun.reflect.annotation.AnnotatedTypeFactory$AnnotatedTypeBaseImpl.getDeclaredAnnotations()
WARNING: Please consider reporting this to the maintainers of org.openqa.selenium.json.BeanToJsonConverter
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
18:55:00.088 INFO [SelfRegisteringRemote$1.run] - Couldn't register this node: Error sending the registration request: Failed to connect to localhost/127.0.0.1:4444
18:55:10.159 INFO [SelfRegisteringRemote$1.run] - Couldn't register this node: The hub is down or not responding: Failed to connect to localhost/127.0.0.1:4444

...暗示 Selenium Grid Node 没有成功注册到 Selenium Grid Hub

然而，启动 Selenium Grid Node 的命令看起来很容易出错，应该如下所示：

java -Dwebdriver.gecko.driver=/home/mehamgn/Documents/drivers/geckodriver -jar selenium-server-standalone-3.12.0.jar -role node -nodeConfig grid_node.json

注意：

-Dwebdriver.gecko.driver 的值必须以二进制名称结尾，例如

geckodriver

（省略结尾的/） 确保传递准确的

nodeConfig.json

文件（根据您使用的代码grid_node.json）

【讨论】：

1) 如何确保正确放置/etc/hosts 文件。我已经浏览了您建议的页面，但没有帮助。 2）我按照你的 cmets 尝试过，但仍然面临问题 mehamgn@mehamgn-VirtualBox:~/Documents$ java -Dwebdriver.gecko.driver=/home/mehamgn/Documents/drivers/geckodriver -jar selenium-server-standalone-3.12.0.jar -role node -nodeConfig grid_node.json 21:08:35.088 INFO [SelfRegisteringRemote$1.run] - Couldn't register this node: Error sending the registration request: Failed to connect to localhost/127.0.0.1:4444

我尝试使用 selenium-server-standalone-3.11.0.jar 版本而不是 3.12.0 ，它可以工作。但它看起来不像是版本问题。

问题是间歇性的。当我今天连接时，发生同样的错误。不知道出了什么问题。

这个问题主要出现在我使用nodeConfig配置功能时。如果我在命令行中提到所有功能，一切正常。需要查看json文件。

nodeConfig 在独立 3.9.1 版本中工作。找到一个有效的配置似乎很神奇。