You are viewing a plain text version of this content. The canonical link for it is here.

Posted to jira@arrow.apache.org by "David Li (Jira)" <ji...@apache.org> on 2021/05/13 15:06:00 UTC

[jira] [Updated] (ARROW-12760) [C++][Python][R] S3FileSystem: IO thread parallelism limited to 8 threads

     [ https://issues.apache.org/jira/browse/ARROW-12760?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

David Li updated ARROW-12760:
-----------------------------
    Summary: [C++][Python][R] S3FileSystem: IO thread parallelism limited to 8 threads  (was: [C++][Python] S3FileSystem: IO thread parallelism limited to 8 threads)

> [C++][Python][R] S3FileSystem: IO thread parallelism limited to 8 threads
> -------------------------------------------------------------------------
>
>                 Key: ARROW-12760
>                 URL: https://issues.apache.org/jira/browse/ARROW-12760
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++, Python, R
>    Affects Versions: 4.0.0
>            Reporter: Juan Galvez
>            Assignee: David Li
>            Priority: Major
>              Labels: filesystem, performance
>             Fix For: 5.0.0
>
>
> On Arrow 4, I'm not able to get more than 8 thread parallelism (for example when N threads call fs.ls() with different paths) for S3FileSystem created with pyarrow, because the default IO context is created with 8 thread limit (hardcoded), and I don't see a way to change this or pass a custom IO context through pyarrow APIs. I believe this affects other Arrow filesystem implementations as well.



--
This message was sent by Atlassian Jira
(v8.3.4#803005)