Hadoop dfs -ls returns list of files in my hadoop/ dir

Question

I've set up a sigle-node Hadoop configuration running via cygwin under Win7. After starting Hadoop by

bin/start-all.sh

I run

bin/hadoop dfs -ls

which returns me a list of files in my hadoop directory. Then I run

bin/hadoop datanode -format
bin/hadoop namenode -format

but -ls still returns me the contents of my hadoop directory. As far as I understand it should return nothing(empty folder). What am I doing wrong?

Answer 1

Did you edit the core-site.xml and mapred-site.xml under conf folder ? It seems like your hadoop cluster is in local mode.