Hi guys

We are using NiFi 1.11.4 with NiFi Registry 0.5.0. We are trying to migrate 
from variables to parameters.

As soon as we are adding a “Process Group Parameter Context” to an existing 
process group and change something else to be able to commit it to the NiFi 
Registry, it seems that the commit gets corrupt. We can’t pull the new version 
on the other NiFI cluster, error message is below:

«Failed to update flow to new version due to 
org.apache.nifi.web.util.LifecycleManagementException: Failed to update Flow on 
all nodes in cluster due to An unexpected error has occurred. Please check the 
logs for additional details.»


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Where can we find the log messages mentioned in the error messages? 
nifi-app.log shows not more than what the GUI shows. How can we troubleshoot 
this or is there any known bug?

We already added some Parameter Context to other Process Groups in the past 
(may be in another NiFi Version?), so in general it was working.

Thanks in advance, Josef

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