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From "Lefty Leverenz (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-6300) Add documentation for stats configs to hive-default.xml.template
Date Sun, 23 Mar 2014 08:09:42 GMT

    [ https://issues.apache.org/jira/browse/HIVE-6300?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13944370#comment-13944370
] 

Lefty Leverenz commented on HIVE-6300:
--------------------------------------

The patch missed describing *hive.stats.avg.row.size* in hive-default.xml.template, so I used
its HiveConf comment in the wiki:

{quote}
In the absence of table/partition statistics, average row size will be used to estimate the
number of rows/data size.
{quote}

Please review and revise as needed.  Perhaps it's not clear enough that "average row size"
means the value of this parameter.

The other parameters covered in this jira are also in the wiki, before this one.

* [Configuration Properties:  hive.stats.avg.row.size |https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-hive.stats.avg.row.size]

> Add documentation for stats configs to hive-default.xml.template
> ----------------------------------------------------------------
>
>                 Key: HIVE-6300
>                 URL: https://issues.apache.org/jira/browse/HIVE-6300
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Query Processor, Statistics
>    Affects Versions: 0.13.0
>            Reporter: Prasanth J
>            Assignee: Prasanth J
>            Priority: Minor
>             Fix For: 0.13.0
>
>         Attachments: HIVE-6300.1.patch, HIVE-6300.2.patch
>
>
> Add documentation for the following configs
> hive.stats.max.variable.length
> hive.stats.list.num.entries
> hive.stats.map.num.entries
> hive.stats.map.parallelism
> hive.stats.fetch.column.stats
> hive.stats.avg.row.size
> hive.stats.join.factor
> hive.stats.deserialization.factor
> hive.stats.fetch.partition.stats



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