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Posted to issues@arrow.apache.org by "Francois Saint-Jacques (Jira)" <ji...@apache.org> on 2020/03/20 15:59:00 UTC

[jira] [Resolved] (ARROW-7390) [C++][Dataset] Concurrency race in Projector::Project

     [ https://issues.apache.org/jira/browse/ARROW-7390?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Francois Saint-Jacques resolved ARROW-7390.
-------------------------------------------
    Resolution: Fixed

Issue resolved by pull request 6661
[https://github.com/apache/arrow/pull/6661]

> [C++][Dataset] Concurrency race in Projector::Project 
> ------------------------------------------------------
>
>                 Key: ARROW-7390
>                 URL: https://issues.apache.org/jira/browse/ARROW-7390
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: C++ - Dataset
>            Reporter: Francois Saint-Jacques
>            Assignee: Francois Saint-Jacques
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 0.17.0
>
>          Time Spent: 1h 20m
>  Remaining Estimate: 0h
>
> When a DataFragment is invoked by 2 scan tasks of the same DataFragment, there's a race to invoke SetInputSchema. Note that ResizeMissingColumns also suffers from this race. The ideal goal is to make Project a const method.



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