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Posted to issues@nifi.apache.org by "Joseph Witt (JIRA)" <ji...@apache.org> on 2018/07/05 16:20:00 UTC

[jira] [Commented] (NIFI-5378) NiFiProperties: Add check to validation to prevent startup when duplicate keys are encountered

    [ https://issues.apache.org/jira/browse/NIFI-5378?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16533866#comment-16533866 ] 

Joseph Witt commented on NIFI-5378:
-----------------------------------

the proposed change feels a little heavy handed but then again if we can detect an obvious configuration error (same key used twice) we should do our best to flag it meaningfully.

> NiFiProperties: Add check to validation to prevent startup when duplicate keys are encountered
> ----------------------------------------------------------------------------------------------
>
>                 Key: NIFI-5378
>                 URL: https://issues.apache.org/jira/browse/NIFI-5378
>             Project: Apache NiFi
>          Issue Type: Improvement
>          Components: Configuration
>    Affects Versions: 1.7.0
>            Reporter: Jon Kessler
>            Priority: Minor
>
> Currently duplicate keys can exist in the nifi.properties file and you aren't necessarily guaranteed or sure which value will be used when the system starts. There is already a method in NiFiProperties.java for validation at startup. Logic should be added so that when duplicates are encountered the system is not permitted to start. Also include a good log message to say what the duplicates are and what the issue was.



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