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https://issues.apache.org/jira/browse/PARQUET-100?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14150201#comment-14150201
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Tongjie Chen commented on PARQUET-100:
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Hi [~julienledem], in current TaskSideMetadataSplitStrategy implementation,
the only information it needs from footer is filePath, which can be obtained by
listStatus. I think we can move the getFooter logic into
ClientSideMetadataSplitStrategy.
Please let me know whether this approach works or not, I can work on a patch
and submit a pull request.
> provide an option in parquet-pig to avoid reading footers in client side
> ------------------------------------------------------------------------
>
> Key: PARQUET-100
> URL: https://issues.apache.org/jira/browse/PARQUET-100
> Project: Parquet
> Issue Type: Improvement
> Components: parquet-mr
> Affects Versions: parquet-mr_1.6.0
> Reporter: Tongjie Chen
>
> Parquet Pig reads footer in client side, to calculate splits and retrieve
> schema etc.
> In HCatalog environment, if there are large number of files generated by
> Hive, Parquet-Pig will spend significant chunk of time processing those
> footers in client side (before job is submitted to cluster).
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