[jira] [Closed] (SPARK-12203) Add KafkaDirectInputDStream that directly pulls messages from Kafka Brokers using receivers

["Liang-Chi Hsieh (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-12203?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Liang-Chi Hsieh closed SPARK-12203.
-----------------------------------
    Resolution: Won't Fix

> Add KafkaDirectInputDStream that directly pulls messages from Kafka Brokers using receivers
> -------------------------------------------------------------------------------------------
>
>                 Key: SPARK-12203
>                 URL: https://issues.apache.org/jira/browse/SPARK-12203
>             Project: Spark
>          Issue Type: New Feature
>          Components: Streaming
>            Reporter: Liang-Chi Hsieh
>
> Currently, we have DirectKafkaInputDStream, which directly pulls messages from Kafka Brokers without any receivers, and KafkaInputDStream, which pulls messages from a Kafka Broker using receiver with zookeeper.
> As we observed, because DirectKafkaInputDStream retrieves messages from Kafka after each batch finishes, it posts a latency compared with KafkaInputDStream that continues to pull messages during each batch window.
> So we try to add KafkaDirectInputDStream that directly pulls messages from Kafka Brokers as DirectKafkaInputDStream, but it uses receivers as KafkaInputDStream and pulls messages during each batch window.



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