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https://issues.apache.org/jira/browse/ORC-238?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16181910#comment-16181910
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Lefty Leverenz commented on ORC-238:
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Doc note: The configuration parameters *orc.buffer.size.enforce* and
*hive.exec.orc.buffer.size.enforce* should be documented in the ORC wiki, with
version information.
But apparently we never got around to documenting the "orc.x" parameters that
correspond to "hive.exec.orc.x" parameters. Anyway, here are the doc links:
* [ORC Documentation | https://orc.apache.org/docs/]
** [Hive Configuration | https://orc.apache.org/docs/hive-config.html]
> Make OrcFile's "enforceBufferSize" user-settable.
> -------------------------------------------------
>
> Key: ORC-238
> URL: https://issues.apache.org/jira/browse/ORC-238
> Project: ORC
> Issue Type: Improvement
> Affects Versions: 1.4.0, 1.5.0
> Reporter: Mithun Radhakrishnan
> Assignee: Mithun Radhakrishnan
> Fix For: 1.5.0
>
> Attachments: ORC-238.1.patch
>
>
> Compression buffer-sizes in OrcFile are computed at runtime, except when
> {{enforceBufferSize}} is set. The only snag here is that this flag can't be
> set by the user.
> When runtime-computed buffer-sizes are not optimal (for some reason), the
> user has no way to work around it by setting a custom value.
> I have a patch that we use at Yahoo.
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