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Posted to issues@hive.apache.org by "Sergey Shelukhin (JIRA)" <ji...@apache.org> on 2018/03/13 01:56:00 UTC

[jira] [Updated] (HIVE-18934) LLAP: consider a simpler cache policy (SLRU?)

     [ https://issues.apache.org/jira/browse/HIVE-18934?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sergey Shelukhin updated HIVE-18934:
------------------------------------
    Issue Type: Sub-task  (was: Bug)
        Parent: HIVE-18939

> LLAP: consider a simpler cache policy (SLRU?)
> ---------------------------------------------
>
>                 Key: HIVE-18934
>                 URL: https://issues.apache.org/jira/browse/HIVE-18934
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Sergey Shelukhin
>            Priority: Major
>
> LRFU as it is is not so easy to tune and it's behavior is not intuitive from users perspective, esp. w.r.t. full scan resistance. 
> We can consider simpler policies with more intuitive behavior, like segmented LRU.



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