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https://issues.apache.org/jira/browse/KUDU-236?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15183839#comment-15183839
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Mike Percy commented on KUDU-236:
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I think that ideally the behavior would be deny opening new scanners before the
AHM but allow scanners to keep segments at snapshots before the AHM open and
available while they scan, posix files-style. The log block manager has similar
semantics so I think it should be achievable, but I am not sure yet.
> GC tablet history
> -----------------
>
> Key: KUDU-236
> URL: https://issues.apache.org/jira/browse/KUDU-236
> Project: Kudu
> Issue Type: New Feature
> Components: tablet
> Affects Versions: M3
> Reporter: David Alves
> Assignee: Mike Percy
> Priority: Blocker
>
> Now that UNDOs are in we need to garbage collect row history somehow. Right
> now we're keeping everything forever
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