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https://issues.apache.org/jira/browse/DRILL-2347?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aman Sinha updated DRILL-2347:
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Attachment: 0001-DRILL-2347-Support-parquet-metadata-read-paralleliza.patch
Uploaded Jacques's original patch combined with a fix I made to
BlockMapBuilder. [~sphillips] could you pls review ?
> Parallelize metadata reads for Parquet metadata
> -----------------------------------------------
>
> Key: DRILL-2347
> URL: https://issues.apache.org/jira/browse/DRILL-2347
> Project: Apache Drill
> Issue Type: Improvement
> Components: Metadata
> Affects Versions: 0.7.0
> Reporter: Aman Sinha
> Assignee: Jacques Nadeau
> Attachments:
> 0001-DRILL-2347-Support-parquet-metadata-read-paralleliza.patch
>
>
> During the planning process, reading the metadata from Parquet files is
> sequential, making the planning slow for large number of files. This should
> be parallelized.
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