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Posted to issues@hbase.apache.org by "Sean Busbey (Jira)" <ji...@apache.org> on 2020/10/01 14:49:00 UTC

[jira] [Commented] (HBASE-25123) Add possibility to set different types of L1 cache

    [ https://issues.apache.org/jira/browse/HBASE-25123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17205575#comment-17205575 ] 

Sean Busbey commented on HBASE-25123:
-------------------------------------

if we abstracted out a policy for deciding if a block gets cacheing and which blocks get evicted that would be enough to isolate the changes needed for HBASE-23887 I think?

> Add possibility to set different types of L1 cache
> --------------------------------------------------
>
>                 Key: HBASE-25123
>                 URL: https://issues.apache.org/jira/browse/HBASE-25123
>             Project: HBase
>          Issue Type: New Feature
>          Components: BlockCache
>            Reporter: Danil Lipovoy
>            Priority: Minor
>
> The feature HBASE-23887 allow speed up to 3 times read performance but maybe it is too complicated. So there are proposals give users possibility to choose type of cache L1. Looks like it needs to change few classes (CombinedBlockCache, InclusiveCombinedBlockCache, CacheConfig) if somebody can code this it would be cool.



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