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https://issues.apache.org/jira/browse/HBASE-27686?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17704710#comment-17704710
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Shanmukha Haripriya Kota edited comment on HBASE-27686 at 3/24/23 4:53 PM:
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I have included a fix for the flaky test in this PR
([https://github.com/apache/hbase/pull/5140)
|https://github.com/apache/hbase/pull/5140)] for HBASE-27750
was (Author: [email protected]):
I have included a fix for the flaky test in this
[PR|[https://github.com/apache/hbase/pull/5140|https://github.com/apache/hbase/pull/5140)]]
for HBASE-27750
> Recovery of BucketCache and Prefetched data after RS Crash
> ----------------------------------------------------------
>
> Key: HBASE-27686
> URL: https://issues.apache.org/jira/browse/HBASE-27686
> Project: HBase
> Issue Type: Improvement
> Components: BucketCache
> Reporter: Shanmukha Haripriya Kota
> Assignee: Shanmukha Haripriya Kota
> Priority: Major
>
> HBASE-27313 introduced the ability to persist a list of hfiles for which
> prefetch has already been completed, so the we can avoid prefetching those
> files again in the event of a graceful restart, but it doesn't cover crash
> scenarios, as if the RS is killed or abnormally stopped, the list wouldn't be
> saved.
> This change aims to persist the list of already prefetched from a background
> thread that periodically checks cache state and persists the list if updates
> have happened.
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