Cloudera doesn't have an official position on this tool yet. The
project page does mention that Hadoop 2.0 is not supported, so I doubt
it will work with CDH 5.2.1. You're of course welcome to provide
feedback if you do try it.
Note that Cloudera Manager does allow you to monitor several metrics
across the cluster. Maybe if you had specific questions on tasks, we
can assist without having to use an extra tool.
Regards,
Gautam Gopalakrishnan