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Posted to issues@hive.apache.org by "Sourabh Badhya (Jira)" <ji...@apache.org> on 2023/03/06 13:48:00 UTC

[jira] [Assigned] (HIVE-27122) Use Caffeine for caching metadata objects in Compactor threads

     [ https://issues.apache.org/jira/browse/HIVE-27122?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sourabh Badhya reassigned HIVE-27122:
-------------------------------------


> Use Caffeine for caching metadata objects in Compactor threads
> --------------------------------------------------------------
>
>                 Key: HIVE-27122
>                 URL: https://issues.apache.org/jira/browse/HIVE-27122
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Sourabh Badhya
>            Assignee: Sourabh Badhya
>            Priority: Major
>
> Currently, compactor threads make use of Guava package to cache metadata objects like database/table objects. We should consider using Caffeine package since it provides more control on the cache. It is also observed that cache created from Caffeine package is more performant than cache created from Guava package.
> Some benchmarks comparing Caffeine package vs Guava package - 
> [https://github.com/ben-manes/caffeine/wiki/Benchmarks]



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