“客户端无法连接到D-BUS守护程序"的含义是什么?意思是?

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问题描述

我正在使用非常复杂的设置来测试各种非公开网页.我使用jenkins在docker图像中运行python-selenium测试.这样，我完全独立于詹金斯环境，并且可以创建自己的环境.在这种环境中，我安装了以下软件:

I am using a very complex setup to test various non-public webpages. I use jenkins to run the python-selenium tests within a dockerimage. That way, I am completely independent of the jenkins environment and can create my own environment. In this environment I have the following software installed:

Ubuntu 16.04.3
Firefox:Mozilla Firefox 57.0.1
壁虎驱动程序:0.18.0
noestests:1.3.7
硒:3.8.0

在运行测试(大多数情况下会成功)时，我在geckodriver.log输出消息中看到

When running the tests, which mostly succeed, I see in the geckodriver.log output messages like

(firefox:55): GConf-WARNING **: Client failed to connect to the D-BUS daemon:
/usr/bin/dbus-launch terminated abnormally without any error message

我的问题:

此消息是什么意思?
这是否表明有时测试失败的原因?
如果是，该如何解决?

推荐答案

您看到的错误是:

(firefox:55): GConf-WARNING **: Client failed to connect to the D-BUS daemon:
/usr/bin/dbus-launch terminated abnormally without any error message

因此很明显， Firefox 尝试连接到 D-BUS守护程序，但由于 dbus-launch 被异常终止而失败.

So it is clear Firefox attempts to connect to D-BUS daemon and fails as dbus-launch gets terminated abnormally.

dbus-launch 基本上是实用程序，用于通过firefox通过shell脚本启动消息总线.通常会从用户的登录脚本中调用它. dbus-launch 启动会话总线实例，并将该实例的地址和pid打印到标准输出.

dbus-launch is basically the utility to start a message bus by firefox through a shell script. It would normally be called from a user's login scripts. dbus-launch launches a session bus instance and print the address and pid of that instance to standard output.

您可以从 Linux手册页

如果使用su(根)，sudo，suedit，gksu，则可能会出现此错误.主要原因是DBUS_SESSION_BUS_ADDRESS在您su时保留其值，而不是在/root/.dbus/session-bus中获取值.

This error can arise if you use su (root), sudo, suedit, gksu. The main reason is DBUS_SESSION_BUS_ADDRESS retains its value when you su instead of picking up the value in /root/.dbus/session-bus.

在这里，您可以在.

另一个可能的原因可能是基本的Firefox浏览器版本可能是较旧的版本，在该版本上进行了更新以达到当前版本.

Another possible reason may be the base Firefox Browser version may be an older version on which updates were taken to reach the current version.

有几种解决方案可以解决 ubuntu 相关问题如下:

There are a couple of solutions available to address this ubuntu related issue as follows :

启动Firefox之前，您必须先输入export $(dbus-launch)
但是，这可能会导致NSS_USE_SHARED_DB的另一个错误.因此，您也必须使用export NSS_USE_SHARED_DB=ENABLED.
最方便的方法是将所有配置都放在.bashrc文件中:

Before you start Firefox you have to type export $(dbus-launch)
However this may result into another error with NSS_USE_SHARED_DB. So you have to use export NSS_USE_SHARED_DB=ENABLED as well.
The most convenient way would be to put all the configuration with in .bashrc file :

export $(dbus-launch)
export NSS_USE_SHARED_DB=ENABLED
firefox &

此讨论详细讨论了该解决方案.

This discussion speaks about the solution in details.

如果未在系统上安装dbus-launch，则必须安装包含 dbus-launch 程序的dbus-x11软件包.
有效的解决方案是卸载旧版本的 Firefox 浏览器并安装最新发布的 Firefox 浏览器的 GA 版本.

If dbus-launch is not installed on your system you have to install dbus-x11 package which contains the dbus-launch program.
An effective solution would be to uninstall the older base version of Firefox Browser and install a recent released GA version of Firefox Browser.

Ubuntu 和 Mozila 均已正确解决 dbus-launch 的问题.要克服此错误，您需要执行以下提到的步骤:

The issue with dbus-launch was addressed properly by both Ubuntu and Mozila. To overcome this error you need to follow the below mentioned steps :

保留您的 Ubuntu os 已更新为最新补丁程序和更新.
始终使用 Selenium-Python客户端，WebDriver 变体，例如 GeckoDriver 和网络浏览器，例如 Firefox浏览器.

Test之前和之后，通过 IDE 重新

清理并构建项目工作区套房.
清除 浏览器缓存在执行测试之前和之后.
如果必须卸载任何 Web客户端变体(例如， Mozilla Firefox )，则可以使用 Revo Uninstallar 中等内存扫描的em>，以便废弃过时的注册表设置.
定期使用 CCleaner 工具清除 OS杂项，包括陈旧的.

Keep your Ubuntu os updated with the Latest Patch Releases and updates.
Always use the latest released version of Selenium-Python client, WebDriver variant e.g. GeckoDriver and Web Browser, e.g. Firefox Browser.
Clean and Build the Project Workspace afresh through your IDE before and after executing your Test Suite.
Clear the Browser Cache before and after the execution of your Tests.
If you have to uninstall any of the Web Client variants (e.g. Mozilla Firefox) you can use Revo Uninstallar with Moderate Memory Scan so that the stale registry settings are discarded.
Use CCleaner tool regularly to wipe away the OS chores including the stale rust_mozprofile directories.

这篇关于“客户端无法连接到D-BUS守护程序"的含义是什么?意思是?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！

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