hive-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Lefty Leverenz (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-3990) Provide input threshold for direct-fetcher (HIVE-2925)
Date Sat, 05 Jul 2014 22:10:34 GMT

    [ https://issues.apache.org/jira/browse/HIVE-3990?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14052979#comment-14052979
] 

Lefty Leverenz commented on HIVE-3990:
--------------------------------------

*hive.fetch.task.conversion.threshold* and *hive.fetch.task.aggr* are documented in the wiki
(also *hive.fetch.task.conversion*):

* [Configuration Properties -- hive.fetch.task.conversion.threshold | https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-hive.fetch.task.conversion.threshold]
* [Configuration Properties -- hive.fetch.task.aggr | https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-hive.fetch.task.aggr]
* [Configuration Properties -- hive.fetch.task.conversion | https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-hive.fetch.task.conversion]

Please review, especially the description of *hive.fetch.task.conversion.threshold* because
I added an explanation of the negative default value. By the way:

# What are the input threshold units for *hive.fetch.task.conversion.threshold* -- bytes?
# What does RS mean in the description of *hive.fetch.task.conversion* ("should not have any
aggregations or distincts (which incurs RS)")? My best guess is ReduceSinkOperator, from [~navis]'s
comment August 13, 2013 on HIVE-5056.

> Provide input threshold for direct-fetcher (HIVE-2925)
> ------------------------------------------------------
>
>                 Key: HIVE-3990
>                 URL: https://issues.apache.org/jira/browse/HIVE-3990
>             Project: Hive
>          Issue Type: Improvement
>          Components: Query Processor
>            Reporter: Navis
>            Assignee: Navis
>            Priority: Trivial
>              Labels: TODOC13
>             Fix For: 0.13.0
>
>         Attachments: D8415.2.patch, D8415.3.patch, HIVE-3990.D8415.1.patch
>
>
> As a followup of HIVE-2925, add input threshold for fetch task conversion.



--
This message was sent by Atlassian JIRA
(v6.2#6252)

Mime
View raw message