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https://issues.apache.org/jira/browse/SPARK-16002?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15577198#comment-15577198
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Apache Spark commented on SPARK-16002:
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User 'lw-lin' has created a pull request for this issue:
https://github.com/apache/spark/pull/15497
> Sleep when no new data arrives to avoid 100% CPU usage
> ------------------------------------------------------
>
> Key: SPARK-16002
> URL: https://issues.apache.org/jira/browse/SPARK-16002
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Reporter: Shixiong Zhu
> Assignee: Shixiong Zhu
> Fix For: 2.0.0
>
>
> Right now if the trigger is ProcessTrigger(0), StreamExecution will keep
> polling new data even if there is no data. Then the CPU usage will be 100%.
> We should add a minimum polling delay when no new data arrives.
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