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https://issues.apache.org/jira/browse/SPARK-42388?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chao Sun resolved SPARK-42388.
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Fix Version/s: 3.5.0
Resolution: Fixed
Issue resolved by pull request 39950
[https://github.com/apache/spark/pull/39950]
> Avoid unnecessary parquet footer reads when no filters in vectorized reader
> ---------------------------------------------------------------------------
>
> Key: SPARK-42388
> URL: https://issues.apache.org/jira/browse/SPARK-42388
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.4.0
> Reporter: Mars
> Assignee: Mars
> Priority: Major
> Fix For: 3.5.0
>
>
> Parquet footer is now read twice even if there are no filters requiring
> pushdown in vectorized parquet reader.
> When the NameNode is under high pressure, it will cost time to read twice.
> Actually we can avoid this unnecessary parquet footer reads and use footer
> metadata in {{{}VectorizedParquetRecordReader{}}}.
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