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https://issues.apache.org/jira/browse/NIFI-9294?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17444743#comment-17444743
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Wiktor Kubicki commented on NIFI-9294:
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Firstly - i dont think u should run nifi as root - it can be security leak. I
guarantee you that nifi is usable in non-root enviroment.
Personally i ignore warning about no java_home set, but i have very vanilla
host with one version of java and nothing else. I believe this is important in
more coplex enviroment. You could try add java_home in your .profile file
(yours and root user if you use sudo).
There is very similar case:
https://stackoverflow.com/questions/34966648/java-home-is-not-defined-correctly-on-ubuntu.
Try it and remember to give feedback here :)
> nifi.sh: JAVA_HOME not set; results may vary
> --------------------------------------------
>
> Key: NIFI-9294
> URL: https://issues.apache.org/jira/browse/NIFI-9294
> Project: Apache NiFi
> Issue Type: Bug
> Components: Configuration, NiFi Registry, NiFi Stateless, Tools and
> Build
> Affects Versions: 1.14.0
> Environment: Ubuntu 20.04
> Reporter: Grivine Ochieng Otieno
> Priority: Critical
> Attachments: Screenshot from 2021-10-11 20-18-57.png, nifi-env.sh,
> nifi.sh
>
> Original Estimate: 60h
> Remaining Estimate: 60h
>
> I cant start NiFi after installing and setting up path for java on my
> computer. The message returned on the terminal is as shown in the image and
> attachments. Please can anyone help me resolve the issue?
> JAVA_HOME is set already. I tried editing the nifi_env.sh file but it
> returned an error saying java path is invalid. I am stuck and cannot proceed.
>
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