测试立即失败，并出现未知错误:通过systemd运行Selenium网格时，DevToolsActivePort文件不存在 [英] Tests fail immediately with unknown error: DevToolsActivePort file doesn't exist when running Selenium grid through systemd

查看：107 发布时间：2020/7/27 19:04:20 selenium selenium-webdriver centos systemd selenium-grid

本文介绍了测试立即失败，并出现未知错误:通过systemd运行Selenium网格时，DevToolsActivePort文件不存在的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我一直试图将启动Selenium网格服务的方式从.rclocal中的shell脚本更改为systemd服务，但是它不起作用.脚本是这样的:

 #!/bin/bash
java -jar /opt/selenium-server-standalone.jar -role hub -hubConfig hubconfig.json
xvfb-run --server-args="-screen 0 2048x1536x24" java -jar /opt/selenium-server-standalone.jar -role 
node -nodeConfig nodeconfig.json

我创建了两个不同的服务，如下所示:

(Stackoverflow不会让我把服务的内容放进去，因为它说它的格式不正确)

服务正常启动:

selenium-hub

● selenium-hub.service - Selenium service
   Loaded: loaded (/etc/systemd/system/selenium-hub.service; disabled; vendor preset: disabled)
   Active: active (running) since Tue 2019-10-01 15:53:10 UTC; 2min 41s ago
 Main PID: 23803 (java)
   CGroup: /system.slice/selenium-hub.service
           └─23803 /bin/java -jar /opt/selenium-server-standalone.jar -role hub -hubConfig /home/selenium/hubconfig.json

Oct 01 15:53:12 vm java[23803]: 15:53:12.163 INFO - Selenium build info: version: '3.9.1', revision: '63f7b50'
Oct 01 15:53:12 vm java[23803]: 15:53:12.164 INFO - Launching Selenium Grid hub on port 4444
Oct 01 15:53:13 vm java[23803]: 2019-10-01 15:53:13.384:INFO::main: Logging initialized @2790ms to org.seleniumhq.jetty9.util.log.StdErrLog
Oct 01 15:53:13 vm java[23803]: 2019-10-01 15:53:13.492:INFO:osjs.Server:main: jetty-9.4.7.v20170914, build timestamp: 2017-11-21T21:27:37Z, git hash: 82b8fb23f757335bb3329d540ce37a2a2615f0a8
Oct 01 15:53:13 vm java[23803]: 2019-10-01 15:53:13.524:INFO:osjs.session:main: DefaultSessionIdManager workerName=node0
Oct 01 15:53:13 vm java[23803]: 2019-10-01 15:53:13.524:INFO:osjs.session:main: No SessionScavenger set, using defaults
Oct 01 15:53:13 vm java[23803]: 2019-10-01 15:53:13.529:INFO:osjs.session:main: Scavenging every 660000ms
Oct 01 15:53:13 vm java[23803]: 2019-10-01 15:53:13.538:INFO:osjsh.ContextHandler:main: Started o.s.j.s.ServletContextHandler@60704c{/,null,AVAILABLE}
Oct 01 15:53:13 vm java[23803]: 2019-10-01 15:53:13.562:INFO:osjs.AbstractConnector:main: Started ServerConnector@1fe20588{HTTP/1.1,[http/1.1]}{0.0.0.0:4444}
Oct 01 15:53:13 vm java[23803]: 2019-10-01 15:53:13.562:INFO:osjs.Server:main: Started @2968ms
Oct 01 15:53:13 vm java[23803]: 15:53:13.562 INFO - Selenium Grid hub is up and running
Oct 01 15:53:13 vm java[23803]: 15:53:13.562 INFO - Nodes should register to http://1.2.3.4:4444/grid/register/
Oct 01 15:53:13 vm java[23803]: 15:53:13.562 INFO - Clients should connect to http://1.2.3.4:4444/wd/hub
Oct 01 15:53:14 vm java[23803]: 15:53:14.797 INFO - Registered a node http://1.2.3.4:5555

selenium-node:

● selenium-node.service - Selenium nodes
   Loaded: loaded (/etc/systemd/system/selenium-node.service; disabled; vendor preset: disabled)
   Active: active (running) since Tue 2019-10-01 15:53:10 UTC; 6min ago
 Main PID: 23813 (xvfb-run)
   CGroup: /system.slice/selenium-node.service
           ├─23813 /bin/sh /bin/xvfb-run --server-args="-screen 0 2048x1536x24" java -jar /opt/selenium-server-standalone.jar -role node -nodeConfig /home/selenium/nodeconfig.json
           ├─23856 java -jar /opt/selenium-server-standalone.jar -role node -nodeConfig /home/selenium/nodeconfig.json
           ├─24326 /usr/local/bin/chromedriver --port=1713
           ├─24327 /usr/local/bin/chromedriver --port=26741
           ├─24328 /usr/local/bin/chromedriver --port=20065
           ├─24329 /usr/local/bin/chromedriver --port=6459
           ├─24331 /usr/local/bin/chromedriver --port=15872
           ├─24332 /usr/local/bin/chromedriver --port=29475
           ├─24333 /usr/local/bin/chromedriver --port=30216
           ├─24334 /usr/local/bin/chromedriver --port=6955
           ├─24558 /usr/local/bin/chromedriver --port=2425
           ├─24559 /usr/local/bin/chromedriver --port=19304
           ├─24560 /usr/local/bin/chromedriver --port=12150
           ├─24561 /usr/local/bin/chromedriver --port=26147
           ├─24562 /usr/local/bin/chromedriver --port=16545
           ├─24570 /usr/local/bin/chromedriver --port=12780
           ├─24602 /usr/local/bin/chromedriver --port=10959
           ├─24603 /usr/local/bin/chromedriver --port=8970
           ├─24753 /usr/local/bin/chromedriver --port=13438
           ├─24754 /usr/local/bin/chromedriver --port=15725
           └─24772 /usr/local/bin/chromedriver --port=28829

Oct 01 15:55:19 vm xvfb-run[23813]: Starting ChromeDriver 77.0.3865.40 (f484704e052e0b556f8030b65b953dce96503217-refs/branch-heads/3865@{#442}) on port 15725
Oct 01 15:55:19 vm xvfb-run[23813]: Only local connections are allowed.
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.112 INFO - /session: Executing POST on /session (handler: BeginSession)
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.113 INFO - Capabilities are: Capabilities {browserName: chrome, goog:chromeOptions: {args: [enable-automation, disable-infobars, disable-notifications, no-sandbox, --disable-dev-shm
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.114 INFO - Capabilities {browserName: chrome, goog:chromeOptions: {args: [enable-automation, disable-infobars, disable-notifications, no-sandbox, --disable-dev-shm-usage, window-siz
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.115 INFO - Found handler: org.openqa.selenium.remote.server.commandhandler.BeginSession@53702c02
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.115 INFO - Found handler: org.openqa.selenium.remote.server.commandhandler.BeginSession@4ae12041
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.116 INFO - /session: Executing POST on /session (handler: BeginSession)
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.117 INFO - Capabilities are: Capabilities {browserName: chrome, goog:chromeOptions: {args: [enable-automation, disable-infobars, disable-notifications, no-sandbox, --disable-dev-shm
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.118 INFO - Capabilities {browserName: chrome, goog:chromeOptions: {args: [enable-automation, disable-infobars, disable-notifications, no-sandbox, --disable-dev-shm-usage, window-siz
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.118 INFO - /session: Executing POST on /session (handler: BeginSession)
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.120 INFO - Capabilities are: Capabilities {browserName: chrome, goog:chromeOptions: {args: [enable-automation, disable-infobars, disable-notifications, no-sandbox, --disable-dev-shm
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.120 INFO - Capabilities {browserName: chrome, goog:chromeOptions: {args: [enable-automation, disable-infobars, disable-notifications, no-sandbox, --disable-dev-shm-usage, window-siz
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.121 INFO - /session: Executing POST on /session (handler: BeginSession)
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.123 INFO - Capabilities are: Capabilities {browserName: chrome, goog:chromeOptions: {args: [enable-automation, disable-infobars, disable-notifications, no-sandbox, --disable-dev-shm
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.123 INFO - Capabilities {browserName: chrome, goog:chromeOptions: {args: [enable-automation, disable-infobars, disable-notifications, no-sandbox, --disable-dev-shm-usage, window-siz
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.124 INFO - /session: Executing POST on /session (handler: BeginSession)
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.139 INFO - Capabilities are: Capabilities {browserName: chrome, goog:chromeOptions: {args: [enable-automation, disable-infobars, disable-notifications, no-sandbox, --disable-dev-shm
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.139 INFO - Capabilities {browserName: chrome, goog:chromeOptions: {args: [enable-automation, disable-infobars, disable-notifications, no-sandbox, --disable-dev-shm-usage, window-siz
Oct 01 15:55:19 vm xvfb-run[23813]: Starting ChromeDriver 77.0.3865.40 (f484704e052e0b556f8030b65b953dce96503217-refs/branch-heads/3865@{#442}) on port 26147
Oct 01 15:55:19 vm xvfb-run[23813]: Only local connections are allowed.
Oct 01 15:55:19 vm xvfb-run[23813]: Please protect ports used by ChromeDriver and related test frameworks to prevent access by malicious code.

但是所有测试均失败，并出现相同的错误:

 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.)
Build info: version: '3.9.1', revision: '63f7b50', time: '2018-02-07T22:42:28.403Z'

DevToolsActivePort的问题源于/dev/shm太小，有时会导致浏览器崩溃( https://stackoverflow .com/a/50642913/5364231 ， https ://bugs.chromium.org/p/chromium/issues/detail?id = 736452#c64 )，所以我已经在功能中添加了--disable-dev-shm-usage.

我认为问题出在服务selenium-hub中，该服务无法与selenium-node进行通信.任何帮助将不胜感激.

解决方案

此错误消息...

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.)
Build info: version: '3.9.1', revision: '63f7b50', time: '2018-02-07T22:42:28.403Z'

...表示 ChromeDriver 无法启动/产生新的 WebBrowser ，即 Chrome浏览器会话.

您的主要问题是所使用的二进制文件版本之间的不兼容性:

您正在使用最新的 chromedriver = 77.0
大概您正在使用 chrome = 77.0 .
您的 Selenium Client 版本是 2018-02-07T22:42:28.403Z 的 3.9.1 ，几乎是 1.5 .

因此 Selenium Client v3.9.1 ， ChromeDriver v77.0 和 Chrome浏览器v77.0 <之间显然存在不匹配/p>

解决方案

确保:

JDK 已升级到当前级别 JDK 8u221 .
硒已升级到当前级别版本3.141.59 .
ChromeDriver 已更新为当前的 ChromeDriver v77.0 级别.
Chrome 已更新为当前的 Chrome版本77.0 级别. (根据 ChromeDriver v77.0发行说明)

IDE

清理您的项目工作区和重建您的项目，并且仅具有必需的依赖项.
如果您的基本 Web客户端版本太旧，则将其卸载并安装最新版本的 Web客户端 GA.
进行系统重启.
以非root用户用户的身份执行@Test.

I've been trying to change the way I start the Selenium grid service from a shell script in .rclocal to a systemd service, but it is not working. The script is this:

#!/bin/bash
java -jar /opt/selenium-server-standalone.jar -role hub -hubConfig hubconfig.json
xvfb-run --server-args="-screen 0 2048x1536x24" java -jar /opt/selenium-server-standalone.jar -role 
node -nodeConfig nodeconfig.json

I created two different services as follows:

(Stackoverflow won't let me put the contents of the services as it says it is not properly formated)

The services are starting correctly:

selenium-hub

● selenium-hub.service - Selenium service
   Loaded: loaded (/etc/systemd/system/selenium-hub.service; disabled; vendor preset: disabled)
   Active: active (running) since Tue 2019-10-01 15:53:10 UTC; 2min 41s ago
 Main PID: 23803 (java)
   CGroup: /system.slice/selenium-hub.service
           └─23803 /bin/java -jar /opt/selenium-server-standalone.jar -role hub -hubConfig /home/selenium/hubconfig.json

Oct 01 15:53:12 vm java[23803]: 15:53:12.163 INFO - Selenium build info: version: '3.9.1', revision: '63f7b50'
Oct 01 15:53:12 vm java[23803]: 15:53:12.164 INFO - Launching Selenium Grid hub on port 4444
Oct 01 15:53:13 vm java[23803]: 2019-10-01 15:53:13.384:INFO::main: Logging initialized @2790ms to org.seleniumhq.jetty9.util.log.StdErrLog
Oct 01 15:53:13 vm java[23803]: 2019-10-01 15:53:13.492:INFO:osjs.Server:main: jetty-9.4.7.v20170914, build timestamp: 2017-11-21T21:27:37Z, git hash: 82b8fb23f757335bb3329d540ce37a2a2615f0a8
Oct 01 15:53:13 vm java[23803]: 2019-10-01 15:53:13.524:INFO:osjs.session:main: DefaultSessionIdManager workerName=node0
Oct 01 15:53:13 vm java[23803]: 2019-10-01 15:53:13.524:INFO:osjs.session:main: No SessionScavenger set, using defaults
Oct 01 15:53:13 vm java[23803]: 2019-10-01 15:53:13.529:INFO:osjs.session:main: Scavenging every 660000ms
Oct 01 15:53:13 vm java[23803]: 2019-10-01 15:53:13.538:INFO:osjsh.ContextHandler:main: Started o.s.j.s.ServletContextHandler@60704c{/,null,AVAILABLE}
Oct 01 15:53:13 vm java[23803]: 2019-10-01 15:53:13.562:INFO:osjs.AbstractConnector:main: Started ServerConnector@1fe20588{HTTP/1.1,[http/1.1]}{0.0.0.0:4444}
Oct 01 15:53:13 vm java[23803]: 2019-10-01 15:53:13.562:INFO:osjs.Server:main: Started @2968ms
Oct 01 15:53:13 vm java[23803]: 15:53:13.562 INFO - Selenium Grid hub is up and running
Oct 01 15:53:13 vm java[23803]: 15:53:13.562 INFO - Nodes should register to http://1.2.3.4:4444/grid/register/
Oct 01 15:53:13 vm java[23803]: 15:53:13.562 INFO - Clients should connect to http://1.2.3.4:4444/wd/hub
Oct 01 15:53:14 vm java[23803]: 15:53:14.797 INFO - Registered a node http://1.2.3.4:5555

selenium-node:

● selenium-node.service - Selenium nodes
   Loaded: loaded (/etc/systemd/system/selenium-node.service; disabled; vendor preset: disabled)
   Active: active (running) since Tue 2019-10-01 15:53:10 UTC; 6min ago
 Main PID: 23813 (xvfb-run)
   CGroup: /system.slice/selenium-node.service
           ├─23813 /bin/sh /bin/xvfb-run --server-args="-screen 0 2048x1536x24" java -jar /opt/selenium-server-standalone.jar -role node -nodeConfig /home/selenium/nodeconfig.json
           ├─23856 java -jar /opt/selenium-server-standalone.jar -role node -nodeConfig /home/selenium/nodeconfig.json
           ├─24326 /usr/local/bin/chromedriver --port=1713
           ├─24327 /usr/local/bin/chromedriver --port=26741
           ├─24328 /usr/local/bin/chromedriver --port=20065
           ├─24329 /usr/local/bin/chromedriver --port=6459
           ├─24331 /usr/local/bin/chromedriver --port=15872
           ├─24332 /usr/local/bin/chromedriver --port=29475
           ├─24333 /usr/local/bin/chromedriver --port=30216
           ├─24334 /usr/local/bin/chromedriver --port=6955
           ├─24558 /usr/local/bin/chromedriver --port=2425
           ├─24559 /usr/local/bin/chromedriver --port=19304
           ├─24560 /usr/local/bin/chromedriver --port=12150
           ├─24561 /usr/local/bin/chromedriver --port=26147
           ├─24562 /usr/local/bin/chromedriver --port=16545
           ├─24570 /usr/local/bin/chromedriver --port=12780
           ├─24602 /usr/local/bin/chromedriver --port=10959
           ├─24603 /usr/local/bin/chromedriver --port=8970
           ├─24753 /usr/local/bin/chromedriver --port=13438
           ├─24754 /usr/local/bin/chromedriver --port=15725
           └─24772 /usr/local/bin/chromedriver --port=28829

Oct 01 15:55:19 vm xvfb-run[23813]: Starting ChromeDriver 77.0.3865.40 (f484704e052e0b556f8030b65b953dce96503217-refs/branch-heads/3865@{#442}) on port 15725
Oct 01 15:55:19 vm xvfb-run[23813]: Only local connections are allowed.
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.112 INFO - /session: Executing POST on /session (handler: BeginSession)
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.113 INFO - Capabilities are: Capabilities {browserName: chrome, goog:chromeOptions: {args: [enable-automation, disable-infobars, disable-notifications, no-sandbox, --disable-dev-shm
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.114 INFO - Capabilities {browserName: chrome, goog:chromeOptions: {args: [enable-automation, disable-infobars, disable-notifications, no-sandbox, --disable-dev-shm-usage, window-siz
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.115 INFO - Found handler: org.openqa.selenium.remote.server.commandhandler.BeginSession@53702c02
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.115 INFO - Found handler: org.openqa.selenium.remote.server.commandhandler.BeginSession@4ae12041
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.116 INFO - /session: Executing POST on /session (handler: BeginSession)
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.117 INFO - Capabilities are: Capabilities {browserName: chrome, goog:chromeOptions: {args: [enable-automation, disable-infobars, disable-notifications, no-sandbox, --disable-dev-shm
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.118 INFO - Capabilities {browserName: chrome, goog:chromeOptions: {args: [enable-automation, disable-infobars, disable-notifications, no-sandbox, --disable-dev-shm-usage, window-siz
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.118 INFO - /session: Executing POST on /session (handler: BeginSession)
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.120 INFO - Capabilities are: Capabilities {browserName: chrome, goog:chromeOptions: {args: [enable-automation, disable-infobars, disable-notifications, no-sandbox, --disable-dev-shm
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.120 INFO - Capabilities {browserName: chrome, goog:chromeOptions: {args: [enable-automation, disable-infobars, disable-notifications, no-sandbox, --disable-dev-shm-usage, window-siz
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.121 INFO - /session: Executing POST on /session (handler: BeginSession)
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.123 INFO - Capabilities are: Capabilities {browserName: chrome, goog:chromeOptions: {args: [enable-automation, disable-infobars, disable-notifications, no-sandbox, --disable-dev-shm
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.123 INFO - Capabilities {browserName: chrome, goog:chromeOptions: {args: [enable-automation, disable-infobars, disable-notifications, no-sandbox, --disable-dev-shm-usage, window-siz
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.124 INFO - /session: Executing POST on /session (handler: BeginSession)
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.139 INFO - Capabilities are: Capabilities {browserName: chrome, goog:chromeOptions: {args: [enable-automation, disable-infobars, disable-notifications, no-sandbox, --disable-dev-shm
Oct 01 15:55:19 vm xvfb-run[23813]: 15:55:19.139 INFO - Capabilities {browserName: chrome, goog:chromeOptions: {args: [enable-automation, disable-infobars, disable-notifications, no-sandbox, --disable-dev-shm-usage, window-siz
Oct 01 15:55:19 vm xvfb-run[23813]: Starting ChromeDriver 77.0.3865.40 (f484704e052e0b556f8030b65b953dce96503217-refs/branch-heads/3865@{#442}) on port 26147
Oct 01 15:55:19 vm xvfb-run[23813]: Only local connections are allowed.
Oct 01 15:55:19 vm xvfb-run[23813]: Please protect ports used by ChromeDriver and related test frameworks to prevent access by malicious code.

However all tests fails with the same error:

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.)
Build info: version: '3.9.1', revision: '63f7b50', time: '2018-02-07T22:42:28.403Z'

The problem with DevToolsActivePort is derived from /dev/shm being too small and sometimes crashing the browser (https://stackoverflow.com/a/50642913/5364231, https://bugs.chromium.org/p/chromium/issues/detail?id=736452#c64) so I already added --disable-dev-shm-usage to the capabilities.

The problem, I think, resided in the service selenium-hub not being able to communicate with selenium-node. Any help is greatly appreciated.

解决方案

This error message...

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.)
Build info: version: '3.9.1', revision: '63f7b50', time: '2018-02-07T22:42:28.403Z'

...implies that the ChromeDriver was unable to initiate/spawn a new WebBrowser i.e. Chrome Browser session.

Your main issue is the incompatibility between the version of the binaries you are using as follows:

You are using the latest chromedriver=77.0
Presumably you are using chrome= 77.0.
Your Selenium Client version is 3.9.1 of 2018-02-07T22:42:28.403Z which is almost 1.5 years older.

So there is a clear mismatch between the Selenium Client v3.9.1 , ChromeDriver v77.0 and the Chrome Browser v77.0

Solution

Ensure that:

JDK is upgraded to current levels JDK 8u221.
Selenium is upgraded to current levels Version 3.141.59.
ChromeDriver is updated to current ChromeDriver v77.0 level.
Chrome is updated to current Chrome Version 77.0 level. (as per ChromeDriver v77.0 release notes)
Clean your Project Workspace through your IDE and Rebuild your project with required dependencies only.
If your base Web Client version is too old, then uninstall it and install a recent GA and released version of Web Client.
Take a System Reboot.
Execute your @Test as non-root user.

这篇关于测试立即失败，并出现未知错误:通过systemd运行Selenium网格时，DevToolsActivePort文件不存在的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

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测试立即失败，并出现未知错误:通过systemd运行Selenium网格时，DevToolsActivePort文件不存在 [英] Tests fail immediately with unknown error: DevToolsActivePort file doesn't exist when running Selenium grid through systemd

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测试立即失败，并出现未知错误:通过systemd运行Selenium网格时，DevToolsActivePort文件不存在 [英] Tests fail immediately with unknown error: DevToolsActivePort file doesn&#39;t exist when running Selenium grid through systemd

问题描述

解决方案

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测试立即失败，并出现未知错误:通过systemd运行Selenium网格时，DevToolsActivePort文件不存在 [英] Tests fail immediately with unknown error: DevToolsActivePort file doesn't exist when running Selenium grid through systemd

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