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Posted to dev@parquet.apache.org by "Uwe Korn (Jira)" <ji...@apache.org> on 2020/10/01 11:11:00 UTC

[jira] [Commented] (PARQUET-1345) [C++] It is possible to overflow a TMemoryBuffer when serializing the file metadata

    [ https://issues.apache.org/jira/browse/PARQUET-1345?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17205420#comment-17205420 ] 

Uwe Korn commented on PARQUET-1345:
-----------------------------------

One of the reasons this could appear is in the case that one has a pandas DataFrame with many categorical columns. Then the pandas metadata may become really huge.

> [C++] It is possible to overflow a TMemoryBuffer when serializing the file metadata
> -----------------------------------------------------------------------------------
>
>                 Key: PARQUET-1345
>                 URL: https://issues.apache.org/jira/browse/PARQUET-1345
>             Project: Parquet
>          Issue Type: Bug
>          Components: parquet-cpp
>            Reporter: Wes McKinney
>            Priority: Major
>
> I'm not sure if this is fixable, but see issue reported to Arrow:
> https://github.com/apache/arrow/issues/2077



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