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https://issues.apache.org/jira/browse/SPARK-13125?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15129860#comment-15129860
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zhengcanbin commented on SPARK-13125:
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Yes, you are right, but shuffle will increase net burden, and number of
partitions is limited by total number of disk. In strictly real-time scenarios,
one topic partition corresponds to multiple rdd partitions is important for
increasing parallelism
> makes the ratio of KafkaRDD partition to kafka topic partition configurable.
> -----------------------------------------------------------------------------
>
> Key: SPARK-13125
> URL: https://issues.apache.org/jira/browse/SPARK-13125
> Project: Spark
> Issue Type: Improvement
> Components: Input/Output
> Affects Versions: 1.6.1
> Reporter: zhengcanbin
> Labels: features
> Original Estimate: 96h
> Remaining Estimate: 96h
>
> Now each given Kafka topic/partition corresponds to an RDD partition, in some
> case it's quite necessary to make this configurable, namely a ratio
> configuration of RDDPartition/kafkaTopicPartition is needed.
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