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https://issues.apache.org/jira/browse/NIFI-4703?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pierre Villard resolved NIFI-4703.
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Resolution: Not A Problem
> Unable to use EL for Hostname and Port on PutTCP processor
> ----------------------------------------------------------
>
> Key: NIFI-4703
> URL: https://issues.apache.org/jira/browse/NIFI-4703
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 1.4.0
> Reporter: Gino Lisignoli
> Priority: Minor
> Attachments: PutTCP-EL.xml
>
>
> Although https://github.com/apache/nifi/pull/1361 was merged into master, it
> doesn't seem to function.
> When setting a dynamic port in the PutTCP processor, the processor produces
> the error:
> PutTCP[id=01601006-15cf-1651-ca50-f9597b0f303f]
> PutTCP[id=01601006-15cf-1651-ca50-f9597b0f303f] failed to process session due
> to java.lang.NumberFormatException: For input string: "": For input string: ""
> See attached dataflow
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