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https://issues.apache.org/jira/browse/ARROW-18018?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated ARROW-18018:
-----------------------------------
Labels: pull-request-available (was: )
> [C++] Potential segmentation fault in unit tests due to usage of AllComplete
> instead of AllFinished
> ---------------------------------------------------------------------------------------------------
>
> Key: ARROW-18018
> URL: https://issues.apache.org/jira/browse/ARROW-18018
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Reporter: Weston Pace
> Assignee: Weston Pace
> Priority: Major
> Labels: pull-request-available
> Fix For: 10.0.0
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Many unit tests rely on StartAndCollect which was running AllComplete on two
> futures. The first was the plan finished future and the second was the sink
> generator collector future. However, AllComplete exits early if one of these
> futures fails. There were some cases where an error was delivered to the
> sink generator (and thus triggers that future) before the plan finished
> future was marked complete. This was generally quite rare but could lead to
> the plan getting deleted before all tasks had completely finished and it
> could sometimes lead to a segmentation fault.
> The solution is to simply use AllFinished here as AllFinished waits for all
> futures to finish regardless of status.
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