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https://issues.apache.org/jira/browse/HBASE-27313?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17601828#comment-17601828
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Shanmukha Haripriya Kota commented on HBASE-27313:
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[~wchevreuil] Thank you for merging it. I will provide a PR for branch-2.
> Persist list of Hfiles names for which prefetch is done
> -------------------------------------------------------
>
> Key: HBASE-27313
> URL: https://issues.apache.org/jira/browse/HBASE-27313
> Project: HBase
> Issue Type: Improvement
> Components: BucketCache
> Affects Versions: 3.0.0-alpha-3
> Reporter: Shanmukha Haripriya Kota
> Assignee: Shanmukha Haripriya Kota
> Priority: Major
> Fix For: 3.0.0-alpha-4
>
>
> Persist list of Hfiles names for which prefetch is completed when persist for
> in-memory bucket cache mapping state is enabled.
> We need to persist the Set, which contains a list of all the HFiles for which
> the prefetch has completed along with the In-memory state of the bucket cache
> so that when we restart and if any prefetch is scheduled again for the same
> HFile and we already have the in-memory state retrieved, we can skip the
> prefetch for it.
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