Solved : As we are running Cloudera Runtime 7.1.7, DAS is not deprecated so we have to use it : https://docs.cloudera.com/cdp-private-cloud-base/7.1.9/runtime-release-notes/topics/rt-pvc-deprecated-das.html ... View more

The application ask for container run some part in that container and then release it back. So the 28 vcores that you are seeing is due to that. Let's say your job asks for 4 containers and eack with 7 vcores so at first only two containers will run as you have limit of 15 vcores. but if one container is released then that job will take another container with 7 vcores so in total now the number of vcores used is 21. ... View more