I fixed it finally by As oozie uses derby db - checking the db location to see if there are any lock files cd /hadoop/oozie/data/oozie-db ubuntu@ixxxxxxxxx:/hadoop/oozie/data/oozie-db$ ls dbex.lck db.lck log README_DO_NOT_TOUCH_FILES.txt seg0 service.properties tmp rm dbex.lck rm db.lck Then finally went to Ambari UI hortonworks restarted the oozie, works finally.. Futher information please relay on a single user to avoid problem in future purpose... ... View more