How to delete hdfs folder from java app?

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I have a Java app and I want to delete a hdfs folder if it exists and this should be done before mapreduce. I tried the following but it didnt work. Any ideas?

url = "hdfs://hdfshost:port/the/folder/to/delete";
org.apache.hadoop.fs.FileUtil.fullyDelete(new File(url))
Oct 30, 2018 in Big Data Hadoop by slayer
• 29,270 points

recategorized Oct 30, 2018 by Omkar 464 views

1 answer to this question.

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Try this:

Configuration conf = new Configuration();
    conf.set("fs.hdfs.impl",org.apache.hadoop.hdfs.DistributedFileSystem.class.getName());
    conf.set("fs.file.impl",org.apache.hadoop.fs.LocalFileSystem.class.getName());
    FileSystem  hdfs = FileSystem.get(URI.create("hdfs://<namenode-hostname>:<port>"), conf);
    hdfs.delete("/path/to/your/file", isRecursive);
answered Oct 30, 2018 by Omkar
• 69,000 points

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