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Posted to issues@spark.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2018/01/13 16:03:00 UTC
[jira] [Assigned] (SPARK-22870) Dynamic allocation should allow 0
idle time
[ https://issues.apache.org/jira/browse/SPARK-22870?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sean Owen reassigned SPARK-22870:
---------------------------------
Assignee: Yuming Wang
> Dynamic allocation should allow 0 idle time
> -------------------------------------------
>
> Key: SPARK-22870
> URL: https://issues.apache.org/jira/browse/SPARK-22870
> Project: Spark
> Issue Type: Improvement
> Components: Scheduler
> Affects Versions: 1.6.0
> Reporter: Xuefu Zhang
> Assignee: Yuming Wang
> Priority: Minor
> Fix For: 2.3.0
>
>
> As discussed in SPARK-22765, with SPARK-21656, an executor will not idle out when there are pending tasks to run. When there is no task to run, an executor will die out after {{spark.dynamicAllocation.executorIdleTimeout}}, which is currently required to be greater than zero. However, for efficiency, a user should be able to specify that an executor can die out immediately w/o being required to be idle for at least 1s.
> This is to make {{0}} a valid value for {{spark.dynamicAllocation.executorIdleTimeout}}, and special handling such a case might be needed.
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