[jira] [Updated] (HBASE-27743) Enhancements for the persistent cache

["Wellington Chevreuil (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-27743?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wellington Chevreuil updated HBASE-27743:
-----------------------------------------
    Summary: Enhancements for the persistent cache  (was: Update the list of prefetched Hfiles upon block eviction)

> Enhancements for the persistent cache
> -------------------------------------
>
>                 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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