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https://issues.apache.org/jira/browse/SPARK-4470?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14215741#comment-14215741
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Apache Spark commented on SPARK-4470:
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User 'kmaehashi' has created a pull request for this issue:
https://github.com/apache/spark/pull/3337
> SparkContext accepts local[0] as a master URL
> ---------------------------------------------
>
> Key: SPARK-4470
> URL: https://issues.apache.org/jira/browse/SPARK-4470
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 1.1.0
> Reporter: Kenichi Maehashi
> Priority: Trivial
>
> When running Spark locally, if number of threads is specified as 0 (e.g.,
> {{spark-submit --master local\[0\] ...}}), the job got stuck and does not run
> at all.
> I think it's better to validate the parameter.
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