[jira] [Commented] (SPARK-23326) "Scheduler Delay" of a task is confusing

["Apache Spark (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-23326?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16351118#comment-16351118 ] 

Apache Spark commented on SPARK-23326:
--------------------------------------

User 'zsxwing' has created a pull request for this issue:
https://github.com/apache/spark/pull/20493

> "Scheduler Delay" of a task is confusing
> ----------------------------------------
>
>                 Key: SPARK-23326
>                 URL: https://issues.apache.org/jira/browse/SPARK-23326
>             Project: Spark
>          Issue Type: Bug
>          Components: Web UI
>    Affects Versions: 2.3.0
>            Reporter: Shixiong Zhu
>            Priority: Major
>
> Run the following code and check the UI
> {code}
> sc.makeRDD(1 to 1, 1).foreach { i => Thread.sleep(30000) }
> {code}
> You will see "Scheduler Delay" of a task is almost the same as "Duration" until the task finishes. That's really confusing.
> In Spark 2.2,  "Scheduler Delay" will be 0 until the task finishes. This is also not correct but less confusing.



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