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https://issues.apache.org/jira/browse/KUDU-1769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15906929#comment-15906929
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Adar Dembo commented on KUDU-1769:
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bq. Is this a duplicate of KUDU-829?
Let's keep them in separate; in my mind, KUDU-829 is about producing a GC
that's cheap enough to run at server startup, while this bug is more about a
potentially heavier GC that's run from a CLI from time to time.
> Add a tool to garbage collect orphan data blocks
> ------------------------------------------------
>
> Key: KUDU-1769
> URL: https://issues.apache.org/jira/browse/KUDU-1769
> Project: Kudu
> Issue Type: Task
> Components: tablet
> Reporter: Dinesh Bhat
>
> There could be cases where we find orphan data blocks not referenced by any
> tablet metadata:
> - Crash during a flush/compaction
> - Crash during a tablet copy could orphan the data blocks copied so far.
> - Bugs
> In such situations, it is useful to have a manual tool to delete all the
> orphan data blocks for which there are no metadata.
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