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https://issues.apache.org/jira/browse/KAFKA-12505?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17435335#comment-17435335
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Igor Soarez commented on KAFKA-12505:
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Is this question/issue still valid? StorageTool [does not seem to accepting
non-UUIDs|https://github.com/apache/kafka/blob/16b2d4f3a7864aabb7c438268eeea8d602b9299c/core/src/main/scala/kafka/tools/StorageTool.scala#L194-L199].
Should this be closed?
> Should kafka-storage.sh accept a non-UUID for its --cluster-id parameter?
> -------------------------------------------------------------------------
>
> Key: KAFKA-12505
> URL: https://issues.apache.org/jira/browse/KAFKA-12505
> Project: Kafka
> Issue Type: New Feature
> Reporter: Ron Dagostino
> Priority: Minor
> Labels: kip-500
>
> Should StorageTool support accepting non-UUIDs via its --cluster-id argument?
> One purpose of the tool is to minimize the chance that a broker could use
> data from the wrong volume (i.e. data from another cluster). Generating a
> random UUID via the --random-uuid parameter encourages using a globally
> unique value for every cluster and is consistent with the behavior today with
> ZooKeeper, whereas allowing a non-UUID here would increase the chance that
> someone could reuse a Cluster ID value across clusters and short-circuit the
> risk mitigation that this tool provides.
> Discuss...
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