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https://issues.apache.org/jira/browse/NIFI-9513?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17465808#comment-17465808
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Mark Payne commented on NIFI-9513:
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[~shashank_239] this has been addressed in 1.15.0. I recommend you upgrade to
1.15.2, as it includes remediations for any potential issues related to the
Log4J vulnerability, as well.
> Trying To fetch variables in NIFI-UI , we see servlet , jersey spring and
> service unavailable with status 503 error
> -------------------------------------------------------------------------------------------------------------------
>
> Key: NIFI-9513
> URL: https://issues.apache.org/jira/browse/NIFI-9513
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 1.12.1
> Environment: 5 nodes cluster
> Architecture: x86_64
> CPU op-mode(s): 32-bit, 64-bit
> Byte Order: Little Endian
> CPU(s): 48
> On-line CPU(s) list: 0-47
> Thread(s) per core: 2
> Reporter: Sai Shashank
> Priority: Blocker
> Labels: patch
> Fix For: 1.15.0
>
> Attachments: Error Log.txt
>
>
> Hello ,
> we observe the below error , whenever we tried to fetch the VARIBALES and
> data provenance from UI .
> Error
> { "servlet":"jerseySpring", "message":"Service Unavailable",
> "url":"/nifi-api/process-groups/xxx/variable-registry", "status":"503" }
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