Webdriver在IE10/Win7上导致“SocketError：getaddrinfo：没有这样的主机”

我们有一个虚拟的Windows 7映像，我们的CI在IE10上运行我们的功能测试。功能测试使用Cucumber + Watir-Webdriver以Ruby编写。Webdriver在IE10/Win7上导致“SocketError：getaddrinfo：没有这样的主机”

大多数的正常工作时间，但现在每然后每个测试开始与下面的异常失败：

EXCEPTION: SocketError: getaddrinfo: No such host is known. 
     C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.34.0/lib/selenium/webdriver/common/platform.rb:169:in `getaddrinfo' 
     C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.34.0/lib/selenium/webdriver/common/platform.rb:169:in `localhost' 
     C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.34.0/lib/selenium/webdriver/remote/bridge.rb:48:in `block in initialize' 
     C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.34.0/lib/selenium/webdriver/remote/bridge.rb:48:in `delete' 
     C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.34.0/lib/selenium/webdriver/remote/bridge.rb:48:in `initialize' 
     C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.34.0/lib/selenium/webdriver/common/driver.rb:35:in `new' 
     C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.34.0/lib/selenium/webdriver/common/driver.rb:35:in `for' 
     C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.34.0/lib/selenium/webdriver.rb:67:in `for' 
     C:/Ruby193/lib/ruby/gems/1.9.1/gems/watir-webdriver-0.6.4/lib/watir-webdriver/browser.rb:46:in `initialize' 
     C:/jenkins/workspace/TEST_IE10/server/cucumber/support/step_support/browsers.rb:212:in `new' 
     C:/jenkins/workspace/TEST_IE10/server/cucumber/support/step_support/browsers.rb:212:in `new_ie_browser' 
     C:/jenkins/workspace/TEST_IE10/server/cucumber/support/step_support/browsers.rb:99:in `new_browser' 
     C:/jenkins/workspace/TEST_IE10/server/cucumber/support/step_support/browsers.rb:132:in `browser' 
     C:/jenkins/workspace/TEST_IE10/server/cucumber/client/features/support/clients/client_support.rb:54:in `new_client' 
     C:/jenkins/workspace/TEST_IE10/server/cucumber/client/features/support/clients/client_support.rb:72:in `client' 
     C:/jenkins/workspace/TEST_IE10/server/cucumber/client/features/support/clients/client_steps.rb:14:in `Before'

通常没有进一步的测试运行将工作，直到我重新启动虚拟机，然后再工作几天。

我检查硒的webdriver的代码和发生故障的线路是：

info = Socket.getaddrinfo "localhost", 80, Socket::AF_INET, Socket::SOCK_STREAM

我们在使用无代理和通信应该只在出内网发生。互联网接入虽然可用。 hosts文件不包含localhost的任何条目。我们使用的是selenium-webdriver 2.34.0。我们使用相同配置的Win7/IE9虚拟机没有这样的问题。

来源

2013-08-19 Sampo

The hosts file does not contain any entry for localhost.

那么，这可能是你的问题。如果您不本地解析本地主机，则将使用默认域发送DNS查询，例如， localhost.example.com。您的DNS服务器可能会或可能不会正确回答该查询。

来源

2013-08-24 17:22:00

Windows上的默认主机文件包含显式注释：“本地主机名称解析在DNS本身内处理”，并且定义“127.0.0.1 localhost”的行被注释。 – Sampo

Webdriver在IE10/Win7上导致“SocketError：getaddrinfo：没有这样的主机”

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