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Posted to issues@arrow.apache.org by "Justin Tan (JIRA)" <ji...@apache.org> on 2018/04/09 14:08:00 UTC

[jira] [Commented] (ARROW-2369) Large (>~20 GB) files written to Parquet via PyArrow are corrupted

    [ https://issues.apache.org/jira/browse/ARROW-2369?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16430571#comment-16430571 ] 

Justin Tan commented on ARROW-2369:
-----------------------------------

Looks like the file is readable by early pyarrow versions (0.5.0 - but created by v0.5.0 as well), so maybe something went wrong from 0.5.0 -> 0.9.0

> Large (>~20 GB) files written to Parquet via PyArrow are corrupted
> ------------------------------------------------------------------
>
>                 Key: ARROW-2369
>                 URL: https://issues.apache.org/jira/browse/ARROW-2369
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: Python
>    Affects Versions: 0.9.0
>         Environment: Reproduced on Ubuntu + Mac OSX
>            Reporter: Justin Tan
>            Assignee: Antoine Pitrou
>            Priority: Major
>              Labels: Parquet, bug, pandas, parquetWriter, pyarrow
>             Fix For: 0.10.0
>
>         Attachments: Screen Shot 2018-03-30 at 11.54.01 pm.png
>
>
> When writing large Parquet files (above 10 GB or so) from Pandas to Parquet via the command
> {{pq.write_table(my_df, 'table.parquet')}}
> The write succeeds, but when the parquet file is loaded, the error message
> {{ArrowIOError: Invalid parquet file. Corrupt footer.}}
> appears. This same error occurs when the parquet file is written chunkwise as well. When the parquet files are small, say < 5 GB or so (drawn randomly from the same dataset), everything proceeds as normal. I've also tried this with Pandas df.to_parquet(), with the same results.
> Update: Looks like any DataFrame with size above ~5GB (on disk) returns the same error.



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