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From JoshRosen <...@git.apache.org>
Subject [GitHub] spark pull request: [SPARK-5063] Useful error messages for nested ...
Date Sat, 03 Jan 2015 04:18:11 GMT
GitHub user JoshRosen opened a pull request:

    https://github.com/apache/spark/pull/3884

    [SPARK-5063] Useful error messages for nested RDDs and actions inside of transformations

    This patch adds more helpful error messages for invalid programs that define nested RDDs
and performs actions inside of transformations (e.g. calling `count()` from inside of `map()`).
 Currently, these invalid programs lead to confusing NullPointerExceptions at runtime and
have been a major source of questions on the mailing list and StackOverflow.

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/JoshRosen/spark SPARK-5063

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/spark/pull/3884.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #3884
    
----
commit 15b2e6b38d9587790357182abe7918853688722e
Author: Josh Rosen <joshrosen@databricks.com>
Date:   2015-01-03T04:14:27Z

    [SPARK-5063] Useful error messages for nested RDDs and actions inside of transformations

----


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