Cloudera CDH is described as 'Cloudera's open-source Apache Hadoop distribution, CDH (Cloudera Distribution Including Apache Hadoop), targets enterprise-class deployments of that technology. Cloudera says that more than 50% of its engineering output is donated upstream to the various Apache-licensed open' and is an app. There are more than 10 alternatives to Cloudera CDH for a variety of platforms, including Web-based, Linux, SaaS, Kubernetes and Self-Hosted apps. The best Cloudera CDH alternative is Google Cloud Dataproc. It's not free, so if you're looking for a free alternative, you could try Amazon EMR or ILUM. Other great apps like Cloudera CDH are Gigasheet, IBM InfoSphere BigInsights, Stackable and Sybase IQ.
I like ilum because it uses k8s and can replace obsolete cloudera envs.