[jira] [Resolved] (ARROW-13173) [C++] TestAsyncUtil.ReadaheadFailed asserts occasionally

["Yibo Cai (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-13173?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yibo Cai resolved ARROW-13173.
------------------------------
    Resolution: Fixed

Issue resolved by pull request 10602
[https://github.com/apache/arrow/pull/10602]

> [C++] TestAsyncUtil.ReadaheadFailed asserts occasionally 
> ---------------------------------------------------------
>
>                 Key: ARROW-13173
>                 URL: https://issues.apache.org/jira/browse/ARROW-13173
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: C++
>    Affects Versions: 4.0.0, 4.0.1
>            Reporter: Yibo Cai
>            Assignee: Weston Pace
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 5.0.0
>
>          Time Spent: 1h
>  Remaining Estimate: 0h
>
> Observed one test case failure from Travis CI arm64 job.
> https://travis-ci.com/github/apache/arrow/jobs/518630381#L2271
> {{TestAsyncUtil.ReadaheadFailed}} asserted at https://github.com/apache/arrow/blob/master/cpp/src/arrow/util/async_generator_test.cc#L1131
> Looks _SleepABit()_ cannot guarantee that _finished_ will be set in time, especially on busy CI hosts where many jobs share one machine.
> cc [~westonpace]



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