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https://issues.apache.org/jira/browse/NIFI-3177?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16800902#comment-16800902
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Sherwin Faria commented on NIFI-3177:
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I would love to see this implemented.
> (Optionally?) Don't duplicate controller servivces on template instantiation
> ----------------------------------------------------------------------------
>
> Key: NIFI-3177
> URL: https://issues.apache.org/jira/browse/NIFI-3177
> Project: Apache NiFi
> Issue Type: Improvement
> Reporter: Brandon DeVries
> Priority: Minor
>
> When placing a template onto the graph, all included / required controller
> services are also created... even if an exact duplicate already exists
> (possibly even from a previous instance of the same template). It is
> definitely possible you might not want to reuse an existing controller
> service, so that shouldn't be the default behavior. However, it is also very
> likely that you *do* want to reuse a controller service.
> Could we add a check on template instantiation that checks for controller
> service matches (name & configuration), and prompt with the option to either
> create new or use existing?
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