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https://issues.apache.org/jira/browse/SPARK-2434?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiangrui Meng resolved SPARK-2434.
----------------------------------

       Resolution: Fixed
    Fix Version/s: 1.1.0

Issue resolved by pull request 1515
[https://github.com/apache/spark/pull/1515]

> Generate runtime warnings for naive implementations
> ---------------------------------------------------
>
>                 Key: SPARK-2434
>                 URL: https://issues.apache.org/jira/browse/SPARK-2434
>             Project: Spark
>          Issue Type: Improvement
>          Components: MLlib
>    Affects Versions: 1.0.0
>            Reporter: Xiangrui Meng
>            Assignee: Burak Yavuz
>            Priority: Minor
>              Labels: Starter
>             Fix For: 1.1.0
>
>
> There are some example code under src/main/scala/org/apache/spark/examples:
> * LocalALS
> * LocalFileLR
> * LocalKMeans
> * LocalLP
> * SparkALS
> * SparkHdfsLR
> * SparkKMeans
> * SparkLR
> They provide naive implementations of some machine learning algorithms that 
> are already covered in MLlib. It is okay to keep them because the 
> implementation is straightforward and easy to read. However, we should 
> generate warning messages at runtime and point users to MLlib's 
> implementation, in case users use them in practice.



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