How to overwrite/reuse the existing output path for Hadoop jobs again and agian

Question

I want to overwrite/reuse the existing output directory when I run my Hadoop job daily. Actually the output directory will store summarized output of each day\'s job run results

Answer 1

If one is loading the input file (with e.g., appended entries) from the local file system to hadoop distributed file system as such:

hdfs dfs -put  /mylocalfile /user/cloudera/purchase

Then one could also overwrite/reuse the existing output directory with -f. No need to delete or re-create the folder

hdfs dfs -put -f  /updated_mylocalfile /user/cloudera/purchase