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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2016/06/16 22:10:05 UTC
[jira] [Commented] (SPARK-16002) Sleep when no new data arrives to
avoid 100% CPU usage
[ https://issues.apache.org/jira/browse/SPARK-16002?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15334802#comment-15334802 ]
Apache Spark commented on SPARK-16002:
--------------------------------------
User 'zsxwing' has created a pull request for this issue:
https://github.com/apache/spark/pull/13718
> 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: Improvement
> Components: SQL
> Reporter: Shixiong Zhu
> Assignee: Shixiong Zhu
>
> 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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