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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2016/06/16 22:11:05 UTC

[jira] [Assigned] (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:all-tabpanel ]

Apache Spark reassigned SPARK-16002:
------------------------------------

    Assignee: Apache Spark  (was: Shixiong Zhu)

> 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: Apache Spark
>
> 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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