提供新的名称解析器缓存守护进程，可以更高效地处理主机名解析请求。

New name resolver caching daemon allowing requests to resolve hostnames to improve the efficiencies of these requests.

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元数据缓存器将目录和文件的路径名称保存为键，将元数据保存为值（如文件长度、最后修改时间、标记该条目是文件还是目录等）。

The metadata cache contains the full path names of directories and files as keys and metadata (e.g. file length, last modification date, and whether the key is a file or a directory) as values.

youdao

这是因为服务定位器将缓存不论哪个组件首次使用时所重载的名称的资源。

This is because the service locator will cache the resource for whichever component USES the overloaded name first.

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