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https://issues.apache.org/jira/browse/KAFKA-19489?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kevin Wu reassigned KAFKA-19489:
--------------------------------

    Assignee: Kevin Wu

> storage tool should check controller.quorum.voters is not set alongside a 
> dynamic quorum flag when formatting
> -------------------------------------------------------------------------------------------------------------
>
>                 Key: KAFKA-19489
>                 URL: https://issues.apache.org/jira/browse/KAFKA-19489
>             Project: Kafka
>          Issue Type: Bug
>            Reporter: Kevin Wu
>            Assignee: Kevin Wu
>            Priority: Major
>
> The storage tool allows for setting both the static voters config 
> ({{{}controller.quorum.voters{}}}) and attempting to format with one of 
> {{--standalone, --initial-controllers, --no-initial-controllers}} on a 
> controller, but instead it should throw an exception. This is because setting 
> {{controller.quorum.voters}} itself is formatting the voter set.
> Setting {{controller.quorum.voters}} while trying to format with a 
> {{--standalone}} and {{--no-initial-controllers}} setup can result in 2 voter 
> sets. For example, in a three node setup, the two nodes that formatted with 
> {{--no-initial-controllers}} could form quorum with each other since they 
> have the static voter set, and the {{--standalone}} node would ignore the 
> config and read the voter set of itself from its log, forming its own quorum 
> of 1.



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