如何解决硒网格中的 FORWARDING_TO_NODE_FAILED 问题答案

【问题标题】：How to solve FORWARDING_TO_NODE_FAILED issue in selenium grid如何解决硒网格中的 FORWARDING_TO_NODE_FAILED 问题
【发布时间】：2019-02-23 13:32:56
【问题描述】：

我从几天开始就在硒网格上工作。我在同一台机器上为 android 创建了集线器和节点。节点正在集线器上注册，执行也开始了。但是一段时间后，会话失败并且执行停止。几乎没有 2-3 个测试用例被执行。

请查看以下错误日志以供参考

[testng] [WebDriverCommandLogger] - Executing findElements parameters: {"using":"css selector","value":".spinner-backdrop"}
   [testng] [WebDriverCommandLogger] - command: findElements[ param-1: {value=.spinner-backdrop, using=css selector}] Result: [id: 0.5843276489161311-137]
   [testng] [WebDriverCommandLogger] - Executing findElements parameters: {"using":"css selector","value":".spinner-backdrop"}
   [testng] [WebDriverCommandLogger] - command: findElements[ param-1: {value=.spinner-backdrop, using=css selector}] Result: []
   [testng] [WebDriverCommandLogger] - Executing findElements parameters: {"using":"css selector","value":".centered-middle"}
   [testng] [WebDriverCommandLogger] - command: findElements[ param-1: {value=.centered-middle, using=css selector}] Result: []
   [testng] [WebDriverCommandLogger] - Executing actions parameters: {"actions":[{}]}
   [testng] [WebDriverCommandLogger] - command: actions[ param-1: {actions=[org.openqa.selenium.interactions.Sequence@7f6f288]}] Result: actions
   [testng] Build info: version: '3.14.0', revision: 'aacccce0', time: '2018-08-02T20:19:58.91Z'
   [testng] System info: host: 'hostname', ip: 'ipaddress', os.name: 'Windows 10', os.arch: 'amd64', os.version: '10.0', java.version: '1.8.0_171'
   [testng] Driver info: driver.version: RemoteWebDriver
   [testng] [WebDriverCommandLogger] - Executing screenshot parameters: {}
   [testng] [WebDriverCommandLogger] - command: screenshot[ param-1: {}] Result: Session [c9e02a30-4c4d-4181-a588-7072b4372a90] was terminated due to FORWARDING_TO_NODE_FAILED
   [testng] Command duration or timeout: 0 milliseconds
   [testng] [WebDriverCommandLogger] - Executing screenshot parameters: {}
   [testng] [WebDriverCommandLogger] - command: screenshot[ param-1: {}] Result: Session [c9e02a30-4c4d-4181-a588-7072b4372a90] was terminated due to FORWARDING_TO_NODE_FAILED

【问题讨论】：

用相关的HTML和你的代码试验更新问题
你需要增加会话时间

标签： selenium selenium-webdriver automation testng selenium-grid

【解决方案1】：

传递参数-e ZALENIUM_EXTRA_JVM_PARAMS="-Dwebdriver.http.factory=apache"，如下图：

docker run --rm -t --name zalenium -p 4444:4444 -e ZALENIUM_EXTRA_JVM_PARAMS="-Dwebdriver.http.factory=apache" -v /var/run/docker.sock:/var/run/docker .sock ...

它已经解决了，在这里也进行了讨论： https://github.com/zalando/zalenium/issues/593

【讨论】：