我正在尝试使用Selenium Grid来自动化一些测试。为了优化测试时间，我创建了一些在 LINUX 平台上工作的虚拟机(一个虚拟机用作 Selenium 集线器，其他虚拟机用作 Selenium 节点(。无论是在集线器中还是在节点中启动独立服务器时都没有问题(一切都像假设的那样工作：节点已成功连接到集线器(。但是当尝试执行测试远程WebDriver(使用chrome(的java代码时，我得到了一个充满警告和错误的窗口！我认为铬驱动程序不高兴...有人知道如何解决这个问题吗？
以下是我正在使用的java代码：
import org.openqa.selenium.Platform;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.remote.DesiredCapabilities;
import org.openqa.selenium.remote.RemoteWebDriver;
public class GithubTest {
public static void main(String[] args) throws MalformedURLException{
String toBeTestedUrl = "https://github.com";
String nodeUrl = "http:172.20.10.13:5555/wd/hub";
DesiredCapabilities desiredCapabilities = DesiredCapabilities.chrome();
desiredCapabilities.setBrowserName(DesiredCapabilities.chrome().getBrowserName());
desiredCapabilities.setPlatform(Platform.LINUX);
WebDriver driver = new RemoteWebDriver(new URL(nodeUrl), desiredCapabilities);
driver.get(toBeTestedUrl);
if(driver.getTitle().equalsIgnoreCase("The world’s leading software development platform · GitHub"))
System.out.println("OK!");
else
System.out.println("ERROR!");
driver.quit();
}
}
下面是硒节点中的日志文件：
16:48:24.098 INFO - Selenium build info: version: '3.9.1', revision: '63f7b50'
16:48:24.108 INFO - Launching a Selenium Grid node on port 5555
16:48:26.313 INFO - Selenium Server is up and running on port 5555
16:48:26.313 INFO - Selenium Grid node is up and ready to register to the hub
16:48:26.344 INFO - Starting auto registration thread. Will try to register every 5000 ms.
16:48:26.345 INFO - Registering the node to the hub: http://172.20.10.10:4444/grid/register
16:48:26.442 INFO - Updating the node configuration from the hub
16:48:26.483 INFO - The node is registered to the hub and ready to use
16:49:08.370 INFO - Found handler: org.openqa.selenium.remote.server.commandhandler.BeginSession@cdb1ecc
16:49:08.374 INFO - /session: Executing POST on /session (handler: BeginSession)
16:49:08.503 INFO - Capabilities are: Capabilities {browserName: chrome, goog:chromeOptions: {args: [], extensions: []}, platform: LINUX}
16:49:08.505 INFO - Capabilities {browserName: chrome, goog:chromeOptions: {args: [], extensions: []}, platform: LINUX} matched class org.openqa.selenium.remote.server.ServicedSession$Factory (provider: org.openqa.selenium.chrome.ChromeDriverService)
执行 java 类时的错误日志：
(unknown error: DevToolsActivePort file doesn't exist)
(The process started from chrome location /usr/bin/google-chrome is no longer running, so ChromeDriver is assuming that Chrome has crashed.)
(Driver info: chromedriver=2.41.578700 (2f1ed5f9343c13f73144538f15c00b370eda6706),platform=Linux 5.0.0-36-generic x86_64) (WARNING: The server did not provide any stacktrace information)
Command duration or timeout: 112 milliseconds
Build info: version: '3.9.1', revision: '63f7b50', time: '2018-02-07T22:42:28.403Z'
System info: host: 'SeleniumNode1', ip: '127.0.1.1', os.name: 'Linux', os.arch: 'amd64', os.version: '5.0.0-36-generic', java.version: '11.0.4'
Driver info: driver.version: unknown
Command duration or timeout: 288 milliseconds
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
at org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:214)
at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:166)
at org.openqa.selenium.remote.JsonWireProtocolResponse.lambda$new$0(JsonWireProtocolResponse.java:53)
at org.openqa.selenium.remote.JsonWireProtocolResponse.lambda$getResponseFunction$2(JsonWireProtocolResponse.java:91)
at org.openqa.selenium.remote.ProtocolHandshake.lambda$createSession$0(ProtocolHandshake.java:123)
at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
at java.base/java.util.Spliterators$ArraySpliterator.tryAdvance(Spliterators.java:958)
at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:127)
at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502)
at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488)
at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
at java.base/java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:150)
at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.base/java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:543)
at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:126)
at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:73)
at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:138)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:601)
at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:219)
at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:142)
at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:155)
at GitTest.main(GitTest.java:19)
Caused by: org.openqa.selenium.WebDriverException: unknown error: Chrome failed to start: exited abnormally
(unknown error: DevToolsActivePort file doesn't exist)
(The process started from chrome location /usr/bin/google-chrome is no longer running, so ChromeDriver is assuming that Chrome has crashed.)
(Driver info: chromedriver=2.41.578700 (2f1ed5f9343c13f73144538f15c00b370eda6706),platform=Linux 5.0.0-36-generic x86_64) (WARNING: The server did not provide any stacktrace information)
Command duration or timeout: 112 milliseconds
Build info: version: '3.9.1', revision: '63f7b50', time: '2018-02-07T22:42:28.403Z'
System info: host: 'SeleniumNode1', ip: '127.0.1.1', os.name: 'Linux', os.arch: 'amd64', os.version: '5.0.0-36-generic', java.version: '11.0.4'
Driver info: driver.version: unknown
Build info: version: '3.9.1', revision: '63f7b50', time: '2018-02-07T22:42:28.403Z'
System info: host: 'SeleniumHub', ip: '127.0.1.1', os.name: 'Linux', os.arch: 'amd64', os.version: '5.0.0-36-generic', java.version: '11.0.4'
Driver info: driver.version: unknown
at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:490)
at org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:214)
at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:166)
at org.openqa.selenium.remote.JsonWireProtocolResponse.lambda$new$0(JsonWireProtocolResponse.java:53)
at org.openqa.selenium.remote.JsonWireProtocolResponse.lambda$getResponseFunction$2(JsonWireProtocolResponse.java:91)
at org.openqa.selenium.remote.ProtocolHandshake.lambda$createSession$0(ProtocolHandshake.java:123)
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
at java.util.Spliterators$ArraySpliterator.tryAdvance(Spliterators.java:958)
at java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:127)
at java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
at java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:150)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:543)
at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:126)
at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:73)
at org.openqa.selenium.remote.server.RemoteSession$Factory.performHandshake(RemoteSession.java:145)
at org.openqa.selenium.remote.server.ServicedSession$Factory.apply(ServicedSession.java:154)
at org.openqa.selenium.remote.server.ActiveSessionFactory.lambda$apply$12(ActiveSessionFactory.java:176)
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
at java.util.stream.ReferencePipeline$11$1.accept(ReferencePipeline.java:442)
at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177)
at java.util.Spliterators$ArraySpliterator.tryAdvance(Spliterators.java:958)
at java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:127)
at java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
at java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:150)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:543)
at org.openqa.selenium.remote.server.ActiveSessionFactory.apply(ActiveSessionFactory.java:179)
at org.openqa.selenium.remote.server.NewSessionPipeline.lambda$null$2(NewSessionPipeline.java:65)
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177)
at java.util.Collections$2.tryAdvance(Collections.java:4747)
at java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:127)
at java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
at java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:150)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:543)
at org.openqa.selenium.remote.server.NewSessionPipeline.lambda$createNewSession$3(NewSessionPipeline.java:68)
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
at java.util.stream.DistinctOps$1$2.accept(DistinctOps.java:175)
at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177)
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177)
at java.util.stream.Streams$StreamBuilderImpl.tryAdvance(Streams.java:397)
at java.util.stream.Streams$ConcatSpliterator.tryAdvance(Streams.java:720)
at java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:127)
at java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
at java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:150)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:543)
at org.openqa.selenium.remote.server.NewSessionPipeline.createNewSession(NewSessionPipeline.java:71)
at org.openqa.selenium.remote.server.commandhandler.BeginSession.execute(BeginSession.java:65)
at org.openqa.selenium.remote.server.WebDriverServlet.lambda$handle$0(WebDriverServlet.java:242)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
at java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.lang.Thread.run(Thread.java:834) ```
首先要检查的是，您是否使用了正确的Chrome驱动程序来驱动Chrome浏览器。如果您不确定，请检查您的 Chrome 版本，然后从 http://chromedriver.chromium.org/downloads 再次下载驱动程序。据我所知，您的ChromeDriver是 2.41 ，它仅支持Chrome v67-69，因此可能是兼容性原因。
如果它没有帮助，您可能需要在驱动程序初始化中添加额外的参数
chrome_options = Options()
chrome_options.add_argument('--headless')
chrome_options.add_argument('--no-sandbox')
chrome_options.add_argument('--disable-dev-shm-usage')
driver = webdriver.Chrome('/path/to/your_chrome_driver_dir/chromedriver',chrome_options=chrome_options)