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Posted to issues@arrow.apache.org by "Anthony Abate (Jira)" <ji...@apache.org> on 2019/09/25 15:09:00 UTC
[jira] [Commented] (ARROW-6682) Arrow Hangs on Large # of Columns
(30+)
[ https://issues.apache.org/jira/browse/ARROW-6682?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16937820#comment-16937820 ]
Anthony Abate commented on ARROW-6682:
--------------------------------------
I have a 150 meg file that i generated with random data and it has 50 columns and it hangs on every load!
> Arrow Hangs on Large # of Columns (30+)
> ---------------------------------------
>
> Key: ARROW-6682
> URL: https://issues.apache.org/jira/browse/ARROW-6682
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++, R
> Affects Versions: 0.14.1
> Reporter: Anthony Abate
> Priority: Blocker
> Attachments: Generated_4000Batch_50Columns_100Rows_PerBatch.rar
>
>
> I get random hangs on arrow_read in R (windows) when using a very large file (10-12gb).
> I have memory dumps - All threads seem to be in wait handles.
> Are there debug symbols somewhere?
> Is there a way to get the C++ code to produce diagnostic logging from R?
>
> it seems that the hangs are not related to file size, row counts, or # of record batches, but rather the number of *columns*
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