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https://issues.apache.org/jira/browse/ARROW-13139?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Li resolved ARROW-13139.
------------------------------
Resolution: Fixed
Issue resolved by pull request 10569
[https://github.com/apache/arrow/pull/10569]
> [C++] ReadaheadGenerator cannot be safely copied/moved
> ------------------------------------------------------
>
> Key: ARROW-13139
> URL: https://issues.apache.org/jira/browse/ARROW-13139
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Reporter: Weston Pace
> Assignee: Weston Pace
> Priority: Major
> Labels: pull-request-available
> Fix For: 5.0.0
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> The readahead generator is one of the older generators and it isn't using the
> newer style of encapsulating all of its state within a state struct &
> shared_ptr. As a result, if it is copied or moved, then the result is
> unpredictable.
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