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Posted to issues@spark.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2018/12/11 14:17:00 UTC
[jira] [Commented] (SPARK-26340) Ensure cores per executor is
greater than cpu per task
[ https://issues.apache.org/jira/browse/SPARK-26340?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16717233#comment-16717233 ]
ASF GitHub Bot commented on SPARK-26340:
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ashangit opened a new pull request #23290: [SPARK-26340][Core] Ensure cores per executor is greater than cpu per task
URL: https://github.com/apache/spark/pull/23290
Currently this check is only performed for dynamic allocation use case in
ExecutorAllocationManager.
## What changes were proposed in this pull request?
Checks that cpu per task is lower than number of cores per executor otherwise throw an exception
## How was this patch tested?
manual tests
Please review http://spark.apache.org/contributing.html before opening a pull request.
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> Ensure cores per executor is greater than cpu per task
> ------------------------------------------------------
>
> Key: SPARK-26340
> URL: https://issues.apache.org/jira/browse/SPARK-26340
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 2.2.2, 2.3.2
> Reporter: Nicolas Fraison
> Priority: Minor
>
> No check is performed to ensure spark.task.cpus is lower then spark.executor.cores. Which can lead to jobs not able to assign tasks without any understandable issues
> The check is only performed in the case of dynamic allocation usage in ExecutorAllocationManager
> Adding the check in TaskSchedulerImpl ensure that an issue is thrown to the driver
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