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https://issues.apache.org/jira/browse/NIFI-7979?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joe Witt resolved NIFI-7979.
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Resolution: Duplicate
> Can't update parameter
> ----------------------
>
> Key: NIFI-7979
> URL: https://issues.apache.org/jira/browse/NIFI-7979
> Project: Apache NiFi
> Issue Type: Bug
> Components: Variable Registry
> Affects Versions: 1.11.4
> Reporter: Mahieddine Cherif
> Priority: Critical
> Labels: configuration, variable-registry
> Attachments: sc_error1.png, sc_error2.png
>
>
> For some reason we are no longer able to update a parameter on our nifi
> cluster. That's not related to some processor/controller that can't be
> stopped because :
> 1 - It happens on all of our parameters contexts (different dataflows/PGs)
> 2 - As shown in this [screen record
> |https://www.screencast.com/t/N5ard5eW2AQP] even with an empty freshly
> created parameter context we can't add a new parameter.
> In both cases we get this error
> !sc_error1.png!
> !sc_error2.png!
> When we restart our cluster it works then after few hours it happens again
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