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https://issues.apache.org/jira/browse/SPARK-11632?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon updated SPARK-11632:
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Labels: bulk-closed (was: )
> Filter out empty partition for KafkaRDD
> ---------------------------------------
>
> Key: SPARK-11632
> URL: https://issues.apache.org/jira/browse/SPARK-11632
> Project: Spark
> Issue Type: Improvement
> Components: DStreams
> Reporter: Saisai Shao
> Priority: Minor
> Labels: bulk-closed
>
> For KafkaRDD, each partition's processed message number is calculated
> beforehand, so empty partition could be filtered out to avoid submitting
> unnecessary tasks. This could alleviate scheduling overhead if there's no
> data come in, also makes dynamic allocation effective to shrink the resources
> (no pending tasks).
> For other receiver-based DStream, BlockRDD already support empty one, so if
> no data injected at that time period, there will be no task submitted.
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