[jira] [Commented] (SPARK-35637) 2 active tasks shown in Spark UI but executor core is 1 and task cpu is 1

["Kousuke Saruta (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-35637?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17359041#comment-17359041 ] 

Kousuke Saruta commented on SPARK-35637:
----------------------------------------

Hmm, the cause seems task-result-getter thread runs asynchronously and post the task completion event.

> 2 active tasks shown in Spark UI but executor core is 1 and task cpu is 1
> -------------------------------------------------------------------------
>
>                 Key: SPARK-35637
>                 URL: https://issues.apache.org/jira/browse/SPARK-35637
>             Project: Spark
>          Issue Type: Bug
>          Components: Web UI
>    Affects Versions: 3.0.2
>            Reporter: L. C. Hsieh
>            Priority: Minor
>
> We see an incorrect element on UI. We set executor core as 1, and task cpu as 1, but we sometimes see 2 active tasks for one executor in "Executors" tab on Spark UI.
> It seems to be UI-only issue, because from the event timeline diagram, two tasks are not actually run at the same time. The second one begins to run after first one finishes.
> Note that two tasks have very short duration 0.7s and 1s.
> So it looks like there is a delay on UI to reflect correct active tasks.



--
This message was sent by Atlassian Jira
(v8.3.4#803005)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org