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Posted to issues@spark.apache.org by "yucai (JIRA)" <ji...@apache.org> on 2017/11/16 08:14:00 UTC

[jira] [Created] (SPARK-22540) HighlyCompressedMapStatus's avgSize is incorrect

yucai created SPARK-22540:
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             Summary: HighlyCompressedMapStatus's avgSize is incorrect
                 Key: SPARK-22540
                 URL: https://issues.apache.org/jira/browse/SPARK-22540
             Project: Spark
          Issue Type: Bug
          Components: Spark Core
    Affects Versions: 2.3.0
            Reporter: yucai


The calculation of HighlyCompressedMapStatus's avgSize is incorrect. 
Currently, it looks like "sum of small blocks / count of all non empty blocks", all non empty blocks contains huge blocks number also, actually we need the count of small blocks only.



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