[jira] [Commented] (HIVE-13354) Add ability to specify Compaction options per table and per request

["Wei Zheng (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-13354?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15421768#comment-15421768 ] 

Wei Zheng commented on HIVE-13354:
----------------------------------

[~leftylev] Wiki has been updated:
https://cwiki.apache.org/confluence/display/Hive/Hive+Transactions
https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DDL

> Add ability to specify Compaction options per table and per request
> -------------------------------------------------------------------
>
>                 Key: HIVE-13354
>                 URL: https://issues.apache.org/jira/browse/HIVE-13354
>             Project: Hive
>          Issue Type: Improvement
>    Affects Versions: 1.3.0, 2.0.0
>            Reporter: Eugene Koifman
>            Assignee: Wei Zheng
>              Labels: TODOC2.1
>             Fix For: 1.3.0, 2.1.0
>
>         Attachments: HIVE-13354.1.patch, HIVE-13354.1.withoutSchemaChange.patch, HIVE-13354.2.patch, HIVE-13354.3.patch, HIVE-13354.branch-1.patch
>
>
> Currently the are a few options that determine when automatic compaction is triggered.  They are specified once for the warehouse.
> This doesn't make sense - some table may be more important and need to be compacted more often.
> We should allow specifying these on per table basis.
> Also, compaction is an MR job launched from within the metastore.  There is currently no way to control job parameters (like memory, for example) except to specify it in hive-site.xml for metastore which means they are site wide.
> Should add a way to specify these per table (perhaps even per compaction if launched via ALTER TABLE)



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)