@anhthu  You will need to fire-up your cluster  start by scrolling at the bottom  see the attached screen and start the Cloudera Manager [CM]  the blue triangular shape will give you a drop-down menu chose start you will see some startup logs and if all goes well it will be green   You can see exactly the same error I have on my Quickstart sandbox because my service are not started  again see the attached screenshot on the blue inverted triangle you will see a drop-down list chose start the services. This will start all the service in the right order ,again once all is GREEN you are good to go   Happy Hadooping ... View more