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https://issues.apache.org/jira/browse/KUDU-1966?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15966899#comment-15966899
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Dan Burkert commented on KUDU-1966:
-----------------------------------
Resolved by
[bd24f04fb43db9f1fcbf9a60ecc31824c3c79bfd|https://github.com/apache/kudu/commit/bd24f04fb43db9f1fcbf9a60ecc31824c3c79bfd].
> Data directories can be removed erroneously
> -------------------------------------------
>
> Key: KUDU-1966
> URL: https://issues.apache.org/jira/browse/KUDU-1966
> Project: Kudu
> Issue Type: Bug
> Components: fs
> Affects Versions: 1.4.0
> Reporter: Adar Dembo
> Assignee: Dan Burkert
>
> Kudu data directories can be removed in between starts of a server, which
> will lead to tablet bootstrap failures. There exists logic to protect against
> this (see
> [PathInstanceMetadataFile::CheckIntegrity()|https://github.com/apache/kudu/blob/master/src/kudu/fs/block_manager_util.h#L78]),
> but it was missing a key check to ensure that no directory had been removed
> from the set.
> To be clear, we do want to support removing data directories, but in a more
> structured and protected manner. For the time being, we should close this
> loophole.
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