WebDriverError：转发新会话时出错 转发请求时出错 操作超时

问题描述 投票：0回答：1

尝试使用硒网格运行我的硒测试用例时遇到以下错误。这实际上只是他们文档中的修改后的硒示例。 ChromeDriver 是 123.0.6312.58 Chrome是123.0.6312.59（虽然我不知道selenium是否使用这个chrome）

const {By, Builder, Browser, until} = require('selenium-webdriver');
const assert = require("assert");

const chrome = require('selenium-webdriver/chrome');

const chromeDriverPath = '/usr/local/bin/chromedriver';
const options = new chrome.Options();
options.addArguments("--remote-allow-origins=*");
options.setChromeBinaryPath(chromeDriverPath);

(async function firstTest() {
  let driver;
  
  try {
    driver = await new Builder().forBrowser(Browser.CHROME).setChromeOptions(options).usingServer('http://localhost:4444/wd/hub').build();

    await driver.get('https://www.selenium.dev/selenium/web/web-form.html');
    let title = await driver.getTitle();
    assert.equal("Web form", title);
  
    await driver.manage().setTimeouts({implicit: 500});
  
    let textBox = await driver.findElement(By.name('my-text'));
    let submitButton = await driver.findElement(By.css('button'));
  
    await textBox.sendKeys('Selenium');
    await submitButton.click();
  
    let message = await driver.findElement(By.id('message'));
    let value = await message.getText();
    assert.equal("Received!", value);
  } catch (e) {
    console.log(e)
  } finally {
    await driver.quit();
  }
}())

我正在使用 selenium-webdriver 3.6.0。我正在尝试使用硒网格来运行它。我运行命令 

java -jar selenium-server-standalone-3.6.0.jar -role hub
来启动集线器，并运行 
java -Dwebdriver.chrome.driver=/usr/local/bin/chromedriver -jar selenium-server-standalone-3.6.0.jar -role node -hub http://localhost:4444
来启动节点。

hub和node启动成功，日志如下： 枢纽：

19:26:01.508 INFO - Selenium build info: version: '3.6.0', revision: '6fbf3ec767'
19:26:01.508 INFO - Launching Selenium Grid hub
2024-03-27 19:26:01.924:INFO::main: Logging initialized @551ms to org.seleniumhq.jetty9.util.log.StdErrLog
19:26:01.929 INFO - Will listen on 4444
2024-03-27 19:26:01.958:INFO:osjs.Server:main: jetty-9.4.5.v20170502
2024-03-27 19:26:01.970:INFO:osjs.session:main: DefaultSessionIdManager workerName=node0
2024-03-27 19:26:01.970:INFO:osjs.session:main: No SessionScavenger set, using defaults
2024-03-27 19:26:01.971:INFO:osjs.session:main: Scavenging every 660000ms
2024-03-27 19:26:01.975:INFO:osjsh.ContextHandler:main: Started o.s.j.s.ServletContextHandler@5e3f861{/,null,AVAILABLE}
2024-03-27 19:26:01.985:INFO:osjs.AbstractConnector:main: Started ServerConnector@4c5ae43b{HTTP/1.1,[http/1.1]}{0.0.0.0:4444}
2024-03-27 19:26:01.985:INFO:osjs.Server:main: Started @613ms
19:26:01.986 INFO - Nodes should register to http://10.32.40.97:4444/grid/register/
19:26:01.986 INFO - Selenium Grid hub is up and running
19:26:03.717 INFO - Registered a node http://10.32.40.97:5555
19:26:23.738 INFO - Marking the node http://10.32.40.97:5555 as down: cannot reach the node for 2 tries
19:27:23.770 INFO - Unregistering the node http://10.32.40.97:5555 because it's been down for 60032 milliseconds
19:27:23.770 WARN - Cleaning up stale test sessions on the unregistered node http://10.32.40.97:5555

节点：

19:22:38.069 INFO - Selenium build info: version: '3.6.0', revision: '6fbf3ec767'
19:22:38.070 INFO - Launching a Selenium Grid node
2024-03-27 19:22:38.275:INFO::main: Logging initialized @343ms to org.seleniumhq.jetty9.util.log.StdErrLog
19:22:38.292 INFO - Driver class not found: com.opera.core.systems.OperaDriver
19:22:38.301 INFO - Driver provider class org.openqa.selenium.ie.InternetExplorerDriver registration is skipped:
 registration capabilities Capabilities [{ensureCleanSession=true, browserName=internet explorer, version=, platform=WINDOWS}] does not match the current platform MAC
19:22:38.301 INFO - Driver provider class org.openqa.selenium.edge.EdgeDriver registration is skipped:
 registration capabilities Capabilities [{browserName=MicrosoftEdge, version=, platform=WINDOWS}] does not match the current platform MAC
19:22:38.311 INFO - Using the passthrough mode handler
2024-03-27 19:22:38.320:INFO:osjs.Server:main: jetty-9.4.5.v20170502
2024-03-27 19:22:38.331:WARN:osjs.SecurityHandler:main: [email protected]@687ef2e0{/,null,STARTING} has uncovered http methods for path: /
2024-03-27 19:22:38.333:INFO:osjsh.ContextHandler:main: Started o.s.j.s.ServletContextHandler@687ef2e0{/,null,AVAILABLE}
2024-03-27 19:22:38.341:INFO:osjs.AbstractConnector:main: Started ServerConnector@6ad59d92{HTTP/1.1,[http/1.1]}{0.0.0.0:5555}
2024-03-27 19:22:38.341:INFO:osjs.Server:main: Started @409ms
19:22:38.341 INFO - Selenium Grid node is up and ready to register to the hub
19:22:38.347 INFO - Starting auto registration thread. Will try to register every 5000 ms.
19:22:38.347 INFO - Registering the node to the hub: http://localhost:4444/grid/register
19:22:38.354 INFO - The node is registered to the hub and ready to use

然后是我的硒脚本的输出

node test.js
WebDriverError: Error forwarding the new session Error forwarding the request Connect to 10.32.40.97:5555 [/10.32.40.97] failed: Operation timed out
    at Object.checkLegacyResponse (/Users/zakjonat/seleniumStackOverflow/node_modules/selenium-webdriver/lib/error.js:546:15)
    at parseHttpResponse (/Users/zakjonat/seleniumStackOverflow/node_modules/selenium-webdriver/lib/http.js:509:13)
    at /Users/zakjonat/seleniumStackOverflow/node_modules/selenium-webdriver/lib/http.js:441:30
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
From: Task: WebDriver.createSession()
    at thenableWebDriverProxy.createSession (/Users/zakjonat/seleniumStackOverflow/node_modules/selenium-webdriver/lib/webdriver.js:769:24)
    at thenableWebDriverProxy.createSession (/Users/zakjonat/seleniumStackOverflow/node_modules/selenium-webdriver/chrome.js:761:15)
    at createDriver (/Users/zakjonat/seleniumStackOverflow/node_modules/selenium-webdriver/index.js:170:33)
    at Builder.build (/Users/zakjonat/seleniumStackOverflow/node_modules/selenium-webdriver/index.js:626:16)
    at firstTest (/Users/zakjonat/seleniumStackOverflow/test.js:21:131)
    at Object.<anonymous> (/Users/zakjonat/seleniumStackOverflow/test.js:54:2)
    at Module._compile (node:internal/modules/cjs/loader:1267:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1321:10)
    at Module.load (node:internal/modules/cjs/loader:1125:32)
    at Module._load (node:internal/modules/cjs/loader:965:12) {
  remoteStacktrace: ''
}
/Users/zakjonat/seleniumStackOverflow/test.js:52
    await driver.quit();
                 ^

TypeError: Cannot read properties of undefined (reading 'quit')
    at firstTest (/Users/zakjonat/seleniumStackOverflow/test.js:52:18)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)

Node.js v20.0.0

如有任何帮助，我们将不胜感激！

javascript node.js selenium-webdriver selenium-chromedriver selenium-grid
1个回答
0
投票

只是一个建议。如果您使用 selenium v4.6+ 您不需要 chrome 驱动程序。 Selenium 发布了 Selenium Manager，它可以自动获取所有浏览器驱动程序。您必须从计算机中删除环境变量和 chrome 驱动程序并更新到 selenium v4.6+，然后您就不必担心驱动程序。

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