Java
To run data-fabric software and Hadoop, you must install a supported Java Development Kit (JDK) on your node.
Java
HPE Ezmeral Data Fabric requires the Java Development Kit (JDK). Installing only the Java runtime environment (JRE) is not sufficient. Verify that one of the following JDK versions is installed on the node:
- Java Requirements for Data Fabric Core
- Oracle Java JDK 11*
- OpenJDK 11*
- Amazon Corretto 11*
NOTEMake sure you have the development kit installed. Some JRE packages include jdk in the name, but do not provide the required JDK software.- Installation Information
- To install one of the supported Java JDK distributions, see:
- Special Requirements for Using OpenJDK
-
If you use OpenJDK:
- RedHat/CentOS must have
java-<version>-openjdk-devel
installed. - SLES nodes must have
java-<version>-openjdk-devel
installed. - Ubuntu nodes must have
openjdk-<version>-jdk
installed.
- RedHat/CentOS must have
NOTE
The openjdk-devel
and openjdk-<version>-jdk
packages include the jps
command that lists running Java processes and can
show whether the CLDB has started. This command is not supported in the Sun Java JRE.