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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2015/12/08 11:07:11 UTC
[jira] [Assigned] (SPARK-12203) Add KafkaDirectInputDStream that
directly pulls messages from Kafka Brokers using receivers
[ https://issues.apache.org/jira/browse/SPARK-12203?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-12203:
------------------------------------
Assignee: Apache Spark
> 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
> Assignee: Apache Spark
>
> 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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