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Posted to issues@spark.apache.org by "Tathagata Das (JIRA)" <ji...@apache.org> on 2015/02/04 21:07:34 UTC
[jira] [Resolved] (SPARK-4964) Exactly-once + WAL-free Kafka
Support in Spark Streaming
[ https://issues.apache.org/jira/browse/SPARK-4964?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tathagata Das resolved SPARK-4964.
----------------------------------
Resolution: Fixed
Fix Version/s: 1.3.0
> Exactly-once + WAL-free Kafka Support in Spark Streaming
> --------------------------------------------------------
>
> Key: SPARK-4964
> URL: https://issues.apache.org/jira/browse/SPARK-4964
> Project: Spark
> Issue Type: Improvement
> Components: Streaming
> Reporter: Cody Koeninger
> Fix For: 1.3.0
>
>
> There are two issues with the current Kafka support
> - Use of Write Ahead Logs in Spark Streaming to ensure no data is lost - Causes data replication in both Kafka AND Spark Streaming.
> - Lack of exactly-once semantics - For background, see http://apache-spark-developers-list.1001551.n3.nabble.com/Which-committers-care-about-Kafka-td9827.html
> We want to solve both these problem in JIRA. Please see the following design doc for the solution.
> https://docs.google.com/a/databricks.com/document/d/1IuvZhg9cOueTf1mq4qwc1fhPb5FVcaRLcyjrtG4XU1k/edit#heading=h.itproy77j3p
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