
1. use ~/ instead of $DEST/ 2. use "__slashplaceholder__" instead of @ 3. add changed PATH to the first line of ~/.bashrc 3. Fix the auto exit issue in start_hdfs.sh, make sure all hdfs services start 4. Add test_hdfs method after hdfs start Change-Id: I82a70d67209f27edead50d64dea03e5cb5ce925a