Installing OpenJDK for CDP Runtime
This section is optional. The CDP Runtime requires a JDK to be installed on all cluster hosts prior to Cloudera Manager and Runtime installation. Cloudera Manager can automatically install an OpenJDK that has been pre-packaged by Cloudera. This OpenJDK provided by Cloudera may not be the latest version.
If you do not want to use the OpenJDK provided by Cloudera, you must install a JDK of your choice on all hosts in the cluster. These instructions describes how to install the OpenJDK package provided by your Operating System Vendor.
Note that the path for the default truststore for OpenJDK 8 is
jre/lib/security/cacerts
.- The package names used when installing the OpenJDK 11 and OpenJDK 8 are different and are noted in the steps below.
- The path for the default truststore has changed from (OpenJDK 8)
jre/lib/security/cacerts
to (OpenJDK 11)lib/security/cacerts
- See the following blog post for general information about migrating to Java 11: All You Need to Know For Migrating To Java 11.
You must install a supported version of OpenJDK. If your deployment uses a version of OpenJDK lower than 1.8.0_181, see TLS Protocol Error with OpenJDK.