[
https://issues.apache.org/jira/browse/SPARK-32170?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
ASF GitHub Bot updated SPARK-32170:
-----------------------------------
Labels: pull-request-available (was: )
> Improve the speculation for the inefficient tasks by the task metrics.
> -----------------------------------------------------------------------
>
> Key: SPARK-32170
> URL: https://issues.apache.org/jira/browse/SPARK-32170
> Project: Spark
> Issue Type: Improvement
> Components: Scheduler, Spark Core
> Affects Versions: 3.0.0
> Reporter: weixiuli
> Assignee: weixiuli
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.4.0
>
>
> 1) Tasks will be speculated when meet certain conditions no matter they are
> inefficient or not，this would be a huge waste of cluster resources.
> 2) In production，the speculation task comes from an efficient one will be
> killed finally，which is unnecessary and will waste of cluster resources.
> 3) So, we should evaluate whether the task is inefficient by success tasks
> metrics firstly, and then decide to speculate it or not. The inefficient
> task will be speculated and efficient one will not, it is better for the
> cluster resources.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org
For additional commands, e-mail: issues-h...@spark.apache.org
