Reza Safi created SPARK-25233:
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             Summary: Give the user the option of specifying a fixed minimum 
message per partition per batch when using kafka direct API with backpressure
                 Key: SPARK-25233
                 URL: https://issues.apache.org/jira/browse/SPARK-25233
             Project: Spark
          Issue Type: Improvement
          Components: DStreams
    Affects Versions: 2.4.0
            Reporter: Reza Safi


After SPARK-18371, it is guaranteed that there would be at least *one* message 
per partition per batch using direct kafka API with backpressure when new 
messages exist in the topics. It would be better if the user has the option of 
setting the minimum instead of just a hard coded 1 limit.



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