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From "Gunther Hagleitner (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-7313) Allow in-memory/ssd session-level temp-tables
Date Tue, 13 Jan 2015 23:17:37 GMT

    [ https://issues.apache.org/jira/browse/HIVE-7313?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14276157#comment-14276157
] 

Gunther Hagleitner commented on HIVE-7313:
------------------------------------------

Looks good to me. +1. (pending tests).

I think eventually it'd be good to expose this flag on the create tmp table sql. So you can
through sql choose the storage medium. Maybe a follow up?

> Allow in-memory/ssd session-level temp-tables
> ---------------------------------------------
>
>                 Key: HIVE-7313
>                 URL: https://issues.apache.org/jira/browse/HIVE-7313
>             Project: Hive
>          Issue Type: Improvement
>          Components: Tez
>    Affects Versions: 0.14.0
>            Reporter: Gopal V
>            Assignee: Gopal V
>              Labels: InMemory, Performance
>         Attachments: HIVE-7313.1.patch, HIVE-7313.2.patch
>
>
> With HDFS storage policies implementation, temporary tables can be written with different
storage/reliability policies. 
> In-session temporary tables can be targetted at both SSD and memory storage policies,
with fallbacks onto the disk and the associated reliability trade-offs.



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