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https://issues.apache.org/jira/browse/SPARK-20662?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen resolved SPARK-20662.
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Resolution: Won't Fix
> Block jobs that have greater than a configured number of tasks
> --------------------------------------------------------------
>
> Key: SPARK-20662
> URL: https://issues.apache.org/jira/browse/SPARK-20662
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 1.6.0, 2.0.0
> Reporter: Xuefu Zhang
>
> In a shared cluster, it's desirable for an admin to block large Spark jobs.
> While there might not be a single metrics defining the size of a job, the
> number of tasks is usually a good indicator. Thus, it would be useful for
> Spark scheduler to block a job whose number of tasks reaches a configured
> limit. By default, the limit could be just infinite, to retain the existing
> behavior.
> MapReduce has mapreduce.job.max.map and mapreduce.job.max.reduce to be
> configured, which blocks a MR job at job submission time.
> The proposed configuration is spark.job.max.tasks with a default value -1
> (infinite).
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