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Posted to issues@hive.apache.org by "Sam An (JIRA)" <ji...@apache.org> on 2019/05/24 03:25:01 UTC

[jira] [Assigned] (HIVE-21787) Metastore table cache enhancement

     [ https://issues.apache.org/jira/browse/HIVE-21787?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sam An reassigned HIVE-21787:
-----------------------------


> Metastore table cache enhancement
> ---------------------------------
>
>                 Key: HIVE-21787
>                 URL: https://issues.apache.org/jira/browse/HIVE-21787
>             Project: Hive
>          Issue Type: New Feature
>          Components: Standalone Metastore
>            Reporter: Sam An
>            Assignee: Sam An
>            Priority: Major
>
> Metastore currently uses black/white list to specify patterns of tables to load into the cache. Cache is loaded in one shot "prewarm", and updated by a background thread. This is not a very efficient design. 
> In this feature, we try to enhance the cache for Tables with LRU to improve cache utilization.



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