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https://issues.apache.org/jira/browse/PARQUET-1470?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16717272#comment-16717272
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Arnaud Linz commented on PARQUET-1470:
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I tried, but I'm not a regular commiter and don't have push access to the repo.
It would be quicker if someone else takes care of it.
> Inputstream leakage in ParquetFileWriter.appendFile
> ---------------------------------------------------
>
> Key: PARQUET-1470
> URL: https://issues.apache.org/jira/browse/PARQUET-1470
> Project: Parquet
> Issue Type: Bug
> Components: parquet-mr
> Affects Versions: 1.10.0
> Reporter: Arnaud Linz
> Priority: Major
>
> Current implementation of ParquetFileWriter.appendFile is:
>
> {{public void appendFile(InputFile file) throws IOException {}}
> {{ ParquetFileReader.open(file).appendTo(this);}}
> {{ }}}
> this method never closes the inputstream created when the file is opened in
> the ParquetFileReader constructor.
> This leads for instance to TooManyFilesOpened exceptions when large merge are
> made with the parquet tools.
> something like
> {{ try (ParquetFileReader reader = ParquetFileReader.open(file)) {}}
> {{ reader.appendTo(this);}}
> {{ }}}
> would be cleaner.
>
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