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https://issues.apache.org/jira/browse/CASSANDRA-16879?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17423360#comment-17423360
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Josh McKenzie commented on CASSANDRA-16879:
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Pushed a commit w/the review feedback from offline slack convo [~maedhroz]. We
good to go?
> Verify correct ownership of attached locations on disk at C* startup
> --------------------------------------------------------------------
>
> Key: CASSANDRA-16879
> URL: https://issues.apache.org/jira/browse/CASSANDRA-16879
> Project: Cassandra
> Issue Type: Improvement
> Components: Local/Startup and Shutdown
> Reporter: Josh McKenzie
> Assignee: Josh McKenzie
> Priority: Normal
> Fix For: 4.x
>
>
> There's two primary things related to startup and disk ownership we should
> mitigate.
> First, an instance can come up with an incorrectly mounted volume attached as
> its configured data directory. This causes the wrong system tables to be
> read. If the instance which was previously using the volume is also down, its
> token could be taken over by the instance coming up.
> Secondly, in a JBOD setup, the non-system keyspaces may reside on a separate
> volume to the system tables. In this scenario, we need to ensure that all
> directories belong to the same instance, and that as the instance starts up
> it can access all the directories it expects to be able to. (including data,
> commit log, hints and saved cache dirs)
>
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