Cloudera Enterprise 6 Requirements and Supported Versions
In an enterprise data hub, Cloudera Manager and CDH interact with several products such as Apache Accumulo, Apache Impala, Hue, Cloudera Search, and Cloudera Navigator. This guide provides information about which major and minor release version of a product is supported with which release version of CDH and Cloudera Manager.
Compatibility across different release versions of Cloudera Manager and CDH must be taken into account, especially when carrying out install/upgrade procedures.
JDK compatibility also varies across different Cloudera Manager and CDH versions. Certain versions of CDH 5 are compatible with both JDK 7 and JDK 8. In such cases, ensure all your services are deployed on the same major version. For example, you should not run Hadoop on JDK 7 while running Sqoop on JDK 8. Additionally, since Cloudera does not support mixed environments, all nodes in your cluster must be running the same major JDK version. Cloudera only supports JDKs provided by Oracle. For Cloudera Manager and CDH 6.0.0 and higher, only Oracle JDK 8 is supported.