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https://issues.apache.org/jira/browse/HBASE-27743?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shanmukha Haripriya Kota updated HBASE-27743:
---------------------------------------------
Description:
Currently, we maintain a list of Hfiles on disk for which prefetch is complete
and avoid prefetching those files after a restart. But we don't handle cases
where blocks are evicted from the cache or when the region is moved and the
blocks from that region are evicted (or not evicted). The Hfile is kept in the
prefetch list forever and over time the prefetch list would have all the files
of the cluster and the prefetch would never be executed. This change aims to
update the prefetched list of HFiles upon block eviction.
was:
Currently, we maintain a list of Hfiles on disk for which prefetch is complete
and avoid prefetching those files after a restart. But we don't handle cases
where blocks are evicted from the cache or when the region is moved and the
blocks from that region are evicted. The Hfile is kept in the prefetch list
forever and over time the prefetch list would have all the files of the cluster
and the prefetch would never be executed. This change aims to update the
prefetched list of HFiles upon block eviction.
> Update the list of prefetched Hfiles upon block eviction
> --------------------------------------------------------
>
> Key: HBASE-27743
> URL: https://issues.apache.org/jira/browse/HBASE-27743
> Project: HBase
> Issue Type: Bug
> Components: BucketCache
> Reporter: Shanmukha Haripriya Kota
> Assignee: Shanmukha Haripriya Kota
> Priority: Major
>
> Currently, we maintain a list of Hfiles on disk for which prefetch is
> complete and avoid prefetching those files after a restart. But we don't
> handle cases where blocks are evicted from the cache or when the region is
> moved and the blocks from that region are evicted (or not evicted). The Hfile
> is kept in the prefetch list forever and over time the prefetch list would
> have all the files of the cluster and the prefetch would never be executed.
> This change aims to update the prefetched list of HFiles upon block eviction.
>
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