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https://issues.apache.org/jira/browse/HIVE-7231?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14088990#comment-14088990
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Lefty Leverenz commented on HIVE-7231:
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The wiki now documents *hive.exec.orc.default.block.size*,
*hive.exec.orc.block.padding.tolerance*, and the changed default for
*hive.exec.orc.default.stripe.size* in 0.14.0:
* [Configuration Properties -- hive.exec.orc.default.block.size |
https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-hive.exec.orc.default.block.size]
* [Configuration Properties -- hive.exec.orc.block.padding.tolerance |
https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-hive.exec.orc.block.padding.tolerance]
* [Configuration Properties -- hive.exec.orc.default.stripe.size |
https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-hive.exec.orc.default.stripe.size]
> Improve ORC padding
> -------------------
>
> Key: HIVE-7231
> URL: https://issues.apache.org/jira/browse/HIVE-7231
> Project: Hive
> Issue Type: Improvement
> Components: File Formats
> Affects Versions: 0.14.0
> Reporter: Prasanth J
> Assignee: Prasanth J
> Labels: orcfile
> Fix For: 0.14.0
>
> Attachments: HIVE-7231.1.patch, HIVE-7231.2.patch, HIVE-7231.3.patch,
> HIVE-7231.4.patch, HIVE-7231.5.patch, HIVE-7231.6.patch, HIVE-7231.7.patch,
> HIVE-7231.8.patch
>
>
> Current ORC padding is not optimal because of fixed stripe sizes within
> block. The padding overhead will be significant in some cases. Also padding
> percentage relative to stripe size is not configurable.
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