[jira] [Updated] (ARROW-15718) [R] Joining two datasets crashes if use_threads=FALSE

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-15718?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated ARROW-15718:
-----------------------------------
    Labels: pull-request-available  (was: )

> [R] Joining two datasets crashes if use_threads=FALSE
> -----------------------------------------------------
>
>                 Key: ARROW-15718
>                 URL: https://issues.apache.org/jira/browse/ARROW-15718
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: C++, R
>    Affects Versions: 7.0.0
>            Reporter: Will Jones
>            Assignee: Will Jones
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 8.0.0
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> In ARROW-14908 we solved the case of joining a dataset to an in memory table, but did not solve joining two datasets.
> The previous solution was to add +1 to the thread count, because the hash join logic might be called by the scanner's IO thread. For joining more than 1 dataset, we might have more than 1 IO thread, so we either need to add a larger arbitrary number or find a way to make the state logic more resilient to unexpected threads.



--
This message was sent by Atlassian Jira
(v8.20.1#820001)