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https://issues.apache.org/jira/browse/PARQUET-431?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gabor Szadovszky updated PARQUET-431:
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Fix Version/s: 1.8.2
> Make ParquetOutputFormat.memoryManager volatile
> -----------------------------------------------
>
> Key: PARQUET-431
> URL: https://issues.apache.org/jira/browse/PARQUET-431
> Project: Parquet
> Issue Type: Bug
> Components: parquet-mr
> Affects Versions: 1.8.0, 1.8.1
> Reporter: Liwei Lin(Inactive)
> Assignee: Liwei Lin(Inactive)
> Priority: Major
> Fix For: 1.9.0, 1.8.2
>
>
> Currently ParquetOutputFormat.getRecordWriter() contains an unsynchronized
> lazy initialization of the non-volatile static field *memoryManager*.
> Because the compiler or processor may reorder instructions, threads are not
> guaranteed to see a completely initialized object, when
> ParquetOutputFormat.getRecordWriter() is called by multiple threads.
> This ticket proposes to make *memoryManager* volatile to correct the problem.
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