Create directory on remote hdfs from localhost using java

Question

Create a directory on the remote HDFS from localhost

Written code but don't understand what and where to write the core-site.xml and the hdfs-site.xml.

public class HadoopCall {

    public void demomkdir(String dir) throws IOException
    {
        Configuration obj = new Configuration();

        obj.set("fs.defaultFS", "http://datlpdsnn01.pds.in.****.com:50070/");
        FileSystem fs = FileSystem.get(obj);

        Path pth = new Path(dir);
        fs.mkdirs(pth);
        System.out.println("created");
        fs.close(); 
    }

    public static void main(String[] args) throws IOException {
        HadoopCall oj = new HadoopCall();
        oj.demomkdir("user/*******/javacodemkdir");
    }

}

Answer 1

Reference : Hadoop Configuration class

As given in the above link:

core-default.xml: Read-only defaults for hadoop.

core-site.xml: Site-specific configuration for a given hadoop installation.

Both are files, with configuration specific to the installation and the default ones. You can add the path of any of the above xml with the method addResource(Path path). If the paths are not given, the xml file paths are inferred from classpath variables.