[jira] [Created] (SPARK-16427) Expand documentation on the various RDD storage levels

["Nicholas Chammas (JIRA)" <ji...@apache.org>]

Nicholas Chammas created SPARK-16427:
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             Summary: Expand documentation on the various RDD storage levels
                 Key: SPARK-16427
                 URL: https://issues.apache.org/jira/browse/SPARK-16427
             Project: Spark
          Issue Type: Improvement
          Components: Documentation
            Reporter: Nicholas Chammas
            Priority: Minor


Looking at the docs here

http://spark.apache.org/docs/1.6.2/api/python/pyspark.html#pyspark.StorageLevel

A newcomer to Spark won’t understand the meaning of {{_2}}, or the meaning of {{_SER}} (or its value), and won’t understand how exactly memory and disk play together when something like {{MEMORY_AND_DISK}} is selected.

We should expand this documentation to explain what the various levels mean and perhaps even when a user might want to use them.



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