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Posted to issues@spark.apache.org by "Tao Wang (JIRA)" <ji...@apache.org> on 2016/08/11 02:44:22 UTC

[jira] [Created] (SPARK-17010) [MINOR]Wrong description in memory management document

Tao Wang created SPARK-17010:
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             Summary: [MINOR]Wrong description in memory management document
                 Key: SPARK-17010
                 URL: https://issues.apache.org/jira/browse/SPARK-17010
             Project: Spark
          Issue Type: Bug
          Components: Documentation
    Affects Versions: 2.0.0
            Reporter: Tao Wang
            Priority: Minor


The value of spark.memory.fraction is changed to 0.6 from 0.75, but the remain percent in document is unchanged.

spark.memory.fraction expresses the size of M as a fraction of the (JVM heap space - 300MB) (default 0.6). The rest of the space `(25%)` is reserved for user data structures, internal metadata in Spark, and safeguarding against OOM errors in the case of sparse and unusually large records.



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