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https://issues.apache.org/jira/browse/SPARK-12177?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15185461#comment-15185461
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Mark Grover commented on SPARK-12177:
-------------------------------------

For a) I think it's a larger discussion, that is relevant to not kafka - it'd 
be good for Spark to have a policy on far back does it want to support various 
versions and how that changes for major vs. minor releases of Spark.

For b) there is this PR: https://github.com/apache/spark/pull/10953 and Cody is 
working on the LRU caching like he said and here's the relevant email on the 
Kafka mailing list:
http://apache-spark-developers-list.1001551.n3.nabble.com/Upgrading-to-Kafka-0-9-x-td16466.html

If you'd like to review the PR, that'd be appreciated. Thanks!

> Update KafkaDStreams to new Kafka 0.9 Consumer API
> --------------------------------------------------
>
>                 Key: SPARK-12177
>                 URL: https://issues.apache.org/jira/browse/SPARK-12177
>             Project: Spark
>          Issue Type: Improvement
>          Components: Streaming
>    Affects Versions: 1.6.0
>            Reporter: Nikita Tarasenko
>              Labels: consumer, kafka
>
> Kafka 0.9 already released and it introduce new consumer API that not 
> compatible with old one. So, I added new consumer api. I made separate 
> classes in package org.apache.spark.streaming.kafka.v09 with changed API. I 
> didn't remove old classes for more backward compatibility. User will not need 
> to change his old spark applications when he uprgade to new Spark version.
> Please rewiew my changes



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