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From ravipesala <...@git.apache.org>
Subject [GitHub] incubator-carbondata issue #620: [CARBONDATA-742]Added batch sort to improve...
Date Fri, 10 Mar 2017 14:57:37 GMT
Github user ravipesala commented on the issue:

    https://github.com/apache/incubator-carbondata/pull/620
  
    For one batch, one file/Btree is created. Since I have given the batch size as 450MB it
can do batch process for every 450 MB of collected data.  If I give my batch size as 900MB
then it creates only 7 files.  The files/Btrees will get reduce as you increase the batch
size. 
    
    Yes, even I have noticed that some times spark can do process well if the blocks are small.
That might be the reason Q3 and Q8 is faster.  


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