一个用户概要文件包含有关该用户的个人细节信息、用户对领域概念的知识、用户目标以及应用程序所需的其他信息。

A user profile consists of personal details about the user, knowledge of the user on domain concepts, user goals, and any other information that is required by the application.

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这些库副本将塞满部署这些 EAR 的文件系统和知识库，并在应用程序启动时填满内存。

You end up with an explosion of copies of these libraries on the file system or repository to which the EARs are deployed and in memory when the applications are started.

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您可以应用从本文学到的知识处理数PB的日志文件；因此，MapReduce抽象是一种非常有用的工具，尤其是在云环境中。

You can easily take the lessons from this article and apply them to petabytes of logfiles; that is the essence of why the MapReduce abstraction is a useful tool, especially in a cloud environment.

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