'JAVA_HOME is not valid when trying to start NIFI

Running on a mac. Just downloaded JAVA 1.8.0_311 in order to run nifi 1.14.0. I am following instructions from a book that instructs me to set the environment variable like so.

export JAVA_HOME=/usr/lib/jvm/java11-openjdk-amd64 when I do this I get a nifi message saying the path is invalid. The book is a year old so the examples may be a little outdated. I am trying to teach myself so I have some basic questions, and nifi documentation doesn't seem to have any input for JAVA_HOME.

How do I determine what the JAVA_HOME variable is supposed to be? I have seen others mention that the variable needs to point to bin or jdk but I'm not grasping why or how.

Any help would be appreciated

javaapache-nifi


Solution 1:[1]

From the comments I was able to piece together the following path and saved it in /.bash_profile:

/Library/Java/JavaVirtualMachines/jdk-17.0.1.jdk/Contents/Home

Solution 2:[2]

Accordingly with "Data Engineering with Python. Work with massive datasets to design data models and automate data pipelines using Python" from Packt Publishing (2020):

you should edit .bash_profile to include the following line so that NiFi can find the JAVA_HOME variable:

export JAVA_HOME=/usr/lib/jvm/java11-openjdk-amd64
  1. Lastly, reload .bash_profile:

source .bash_profile

Open a terminal, type:

dirname $(dirname $(readlink -f $(which javac)))

Copy the path, then open another terminal and type (using nano editor):

nano ~/.bash_profile

Then paste the path next to JAVA_HOME variable:

export JAVA_HOME=/usr/lib/jvm/java11-openjdk-amd64

Ctrl-O, Enter, Ctrl-X, to exit nano editor.

Last, type, in the last terminal:

source ~/.bash_profile

Reboot system

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Ruli
Solution 2 procrastinator

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