kunal642 opened a new pull request #3712: [HOTFIX] Fixed task distribution 
issue in SegmentPruneRDD
URL: https://github.com/apache/carbondata/pull/3712
 
 
    ### Why is this PR needed?
    SI queries are degraded because getPrefferedLocation is
   not overridden in SegmentPruneRDD due to which tasks are fired randomly to 
any executors
    
    ### What changes were proposed in this PR?
   override getPrefferedLocation so that tasks are fired to correct executors.
       
    ### Does this PR introduce any user interface change?
    - No
    - Yes. (please explain the change and update document)
   
    ### Is any new testcase added?
    - No
    - Yes
   
       
   

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