GitHub user jerryshao opened a pull request:

    https://github.com/apache/spark/pull/15545

    [SPARK-17999][Kafka][SQL] Add getPreferredLocations for KafkaSourceRDD

    ## What changes were proposed in this pull request?
    
    The newly implemented Structured Streaming `KafkaSource` did calculate the 
preferred locations for each topic partition, but didn't offer this information 
through RDD's `getPreferredLocations` method. So here propose to add this 
method in `KafkaSourceRDD`.
    
    ## How was this patch tested?
    
    Manual verification.


You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/jerryshao/apache-spark SPARK-17999

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/spark/pull/15545.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #15545
    
----
commit 1d8622f86d22061eaf1db07404ea1a334faaa266
Author: jerryshao <ss...@hortonworks.com>
Date:   2016-10-19T03:02:02Z

    Add getPreferredLocations for KafkaSourceRDD

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