Shixiong Zhu created SPARK-16002:
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Summary: 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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