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https://issues.apache.org/jira/browse/PARQUET-2354?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17769065#comment-17769065
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Piotr Findeisen commented on PARQUET-2354:
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PR link https://github.com/apache/parquet-mr/pull/1154
> Apparent race condition in CharsetValidator
> -------------------------------------------
>
> Key: PARQUET-2354
> URL: https://issues.apache.org/jira/browse/PARQUET-2354
> Project: Parquet
> Issue Type: Bug
> Reporter: Piotr Findeisen
> Priority: Major
>
> The {{CharsetValidator}} has a static singleton instance at
> {{{}BinaryTruncator.DEFAULT_UTF8_TRUNCATOR.validator{}}}, so it can be
> accessed from multiple threads. All threads operate on a shared "dummy
> buffer" for decoding.
>
>
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