HDFS:如何递归列出文件? [英] HDFS: How do you list files recursively?

问题描述

您如何通过Java在递归的HDFS中的某个路径下列出所有文件.我通过API并注意到FileSystem.listFiles(Path，boolean)，但是在初始化它时，在我的FileSystem实例中似乎不存在该方法.

How do you, through Java, list all files (recursively) under a certain path in HDFS. I went through the API and noticed FileSystem.listFiles(Path,boolean) but it looks like that method doesn't exist in my instance of FileSystem when I initialize it.

推荐答案

您可以查看您的hadoop版本的org.apache.hadoop.fs.FsShell.ls(FileStatus, FileSystem, boolean, boolean)源-这是从命令行执行hadoop fs -lsr path时所调用的

You can look at the source for org.apache.hadoop.fs.FsShell.ls(FileStatus, FileSystem, boolean, boolean) for your version of hadoop - this is what is called when you perform a hadoop fs -lsr path from the command line

• 1.0.2 -第590行

• 0.20.2 - line 593
• 1.0.2 - line 590

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