Note: The maintenance window is not an automatic maintenance policy, but it is configurable using the same interface.
注意：维护窗口并不是自动维护策略，但是可以使用相同的界面进行配置。
In our example, this mechanism is not explicitly shown since the cache scope of the portlet window is the same as the cache scope of the portlet definition.
在我们的示例中，由于Portlet窗口的缓存作用域与Portlet定义的作用域相同，所有这个机制并没有得到明显体现。
The window manager is your choice, of course, but note that GNOME does not support running two instances on the same computer. Run the following command on the control node.
当然，窗口管理器是自选的，但是请注意GNOME不支持在同一台计算机上运行两个实例。
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