Before you begin installing Edge Flow Manager

Before you start the Edge Flow Manager installation, review the system requirements. Understand the supported operating systems, Java Development Kit (JDK) versions, and browser specifications, and learn how to install the required JDK to optimize Edge Flow Manager functionality.

System requirements for Edge Flow Manager

Operating system support


Operating System	Version
RHEL/CentOS	8.x, 9.x
Ubuntu	20.04, 22.04, 24.04

JDK support


JDK	Version
OpenJDK	JDK 17
Oracle JDK	JDK 17

Supported databases


Database	Version
PostgreSQL	12.x, 13.x, 14.x, 15.x, 16.x
MySQL	8.0.x
MariaDB	10.4, 10.5, 10.6, 10.11

Browser support


Browser	Version
Chrome	The latest version at the time of the last Cloudera Edge Management release, and the two previous major versions
Firefox	The latest version at the time of the last Cloudera Edge Management release, and the two previous major versions

Installing JDK

To ensure that Cloudera Edge Management functions correctly, you must install JDK on each machine where the Edge Flow Manager server will be installed.

Install Java 17.
1. Download the JDK package from the appropriate website.
2. Install JDK on your system by running the following command.
  
  For RHEL/CentOS:yum install java-17-openjdk
Set the JAVA_HOME environment variable.

In environments with multiple Java versions, it is important to set the correct JAVA_HOME to avoid runtime issues.
1. To set JAVA_HOME permanently, add the following to your shell profile.
  (For example: ~/.bashrc or /etc/profile.d/java.sh)
```
export JAVA_HOME=/usr/lib/jvm/java-17-openjdk
export PATH=$JAVA_HOME/bin:$PATH
```
2. Reload the environment or restart the shell session.
```
source ~/.bashrc
```
Verify the Java version to ensure that the correct Java version is in use before starting Edge Flow Manager.
```
java -version
```
The output should show Java 17.

After installing the JDK, ensure that you have the required database installed and properly configured for Cloudera Edge Management.