You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@hive.apache.org by "Sam An (JIRA)" <ji...@apache.org> on 2019/06/03 15:03:00 UTC

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

    [ https://issues.apache.org/jira/browse/HIVE-21787?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16854680#comment-16854680 ] 

Sam An commented on HIVE-21787:
-------------------------------

putting a renamed patch(same content) to trigger ptest again. Somehow the one uploaded on Friday did not trigger anything.  

> 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
>         Attachments: HIVE-21787.1.patch, HIVE-21787.2.patch, HIVE-21787.3.patch, HIVE-21787.4.patch, HIVE-21787.5.patch
>
>
> 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.



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)