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Posted to issues@hbase.apache.org by "Vladimir Rodionov (Jira)" <ji...@apache.org> on 2026/03/25 19:58:00 UTC

[jira] [Updated] (HBASE-30024) Add CarrotCache-based BlockCacheEngine to reduce metadata overhead and improve cache density

     [ https://issues.apache.org/jira/browse/HBASE-30024?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vladimir Rodionov updated HBASE-30024:
--------------------------------------
    Issue Type: New Feature  (was: Improvement)

> Add CarrotCache-based BlockCacheEngine to reduce metadata overhead and improve cache density
> --------------------------------------------------------------------------------------------
>
>                 Key: HBASE-30024
>                 URL: https://issues.apache.org/jira/browse/HBASE-30024
>             Project: HBase
>          Issue Type: New Feature
>            Reporter: Vladimir Rodionov
>            Assignee: Vladimir Rodionov
>            Priority: Major
>
> Introduce a new BlockCacheEngine backed by CarrotCache.
> Initial scope:
> 	•	L2 integration (L1 remains LruBlockCache)
> 	•	store HBase block payloads without format changes
> 	•	integrate with topology and policy layers
> Motivation:
> 	•	significantly lower metadata overhead
> 	•	improved effective cache capacity



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