[jira] [Updated] (KAFKA-7795) Produce a warning when duplicate config keys are detected

["David Arthur (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-7795?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

David Arthur updated KAFKA-7795:
--------------------------------
    Summary: Produce a warning when duplicate config keys are detected  (was: Add strict config parsing mode)

> Produce a warning when duplicate config keys are detected
> ---------------------------------------------------------
>
>                 Key: KAFKA-7795
>                 URL: https://issues.apache.org/jira/browse/KAFKA-7795
>             Project: Kafka
>          Issue Type: Improvement
>          Components: config
>            Reporter: David Arthur
>            Priority: Minor
>
> 	It would be nice to perform some basic validation of the broker config so that things aren't unexpectedly overwritten. 
> For example, 
> {code:java} 
> unclean.leader.election.enable=false 
> // many other lines of config 
> unclean.leader.election.enable=true 
> {code} 
> By detecting duplicate keys in the config file, we can avoid such situations.



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