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https://issues.apache.org/jira/browse/PARQUET-2493?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Loughran updated PARQUET-2493:
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Summary: HadoopInputFile.open (was: Unnecessary loss of information when
opening a HadoopInputFile)
> HadoopInputFile.open
> --------------------
>
> Key: PARQUET-2493
> URL: https://issues.apache.org/jira/browse/PARQUET-2493
> Project: Parquet
> Issue Type: Improvement
> Components: parquet-hadoop
> Affects Versions: 1.14.0
> Reporter: Oliver Caballero Alvarez
> Priority: Major
>
> In the current version of the HadoopInputFile implementation:
> [https://github.com/apache/parquet-java/blob/apache-parquet-1.14.0/parquet-hadoop/src/main/java/org/apache/parquet/hadoop/util/HadoopInputFile.java]
>
> When performing a newStream, the reference to the FileStatus is lost, which
> has already been previously consulted to create this class. This means that
> when you go to the implementation of each FileSystem, it will surely have to
> be requested again, since you have requested the reference of whether the
> file exists, when the file is weighed or relevant information to be able to
> open the file.
> To do this, it is necessary to change the Hadoop implementation, including
> that in the open function, the Path object does not necessarily have to be
> passed but the FileStatus can be passed directly.
> return HadoopStreams.wrap(fs.open(stat.getPath()));
> to
> return HadoopStreams.wrap(fs.open(stat));
>
> The implementation change is proposed in:
> https://issues.apache.org/jira/browse/HADOOP-19199
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