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https://issues.apache.org/jira/browse/SPARK-18320?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joseph K. Bradley updated SPARK-18320:
--------------------------------------
    Description: 
For new public APIs added to MLlib ({{spark.ml}} only), we need to check the 
generated HTML doc and compare the Scala & Python versions.
* *GOAL*: Audit and create JIRAs to fix in the next release.
* *NON-GOAL*: This JIRA is _not_ for fixing the API parity issues.

We need to track:
* Inconsistency: Do class/method/parameter names match?
* Docs: Is the Python doc missing or just a stub?  We want the Python doc to be 
as complete as the Scala doc.
* API breaking changes: These should be very rare but are occasionally either 
necessary (intentional) or accidental.  These must be recorded and added in the 
Migration Guide for this release.
** Note: If the API change is for an Alpha/Experimental/DeveloperApi component, 
please note that as well.
* Missing classes/methods/parameters: We should create to-do JIRAs for 
functionality missing from Python, to be added in the next release cycle.  
*Please use a _separate_ JIRA (linked below as "requires") for this list of 
to-do items.*


  was:
For new public APIs added to MLlib, we need to check the generated HTML doc and 
compare the Scala & Python versions.  We need to track:
* Inconsistency: Do class/method/parameter names match?
* Docs: Is the Python doc missing or just a stub?  We want the Python doc to be 
as complete as the Scala doc.
* API breaking changes: These should be very rare but are occasionally either 
necessary (intentional) or accidental.  These must be recorded and added in the 
Migration Guide for this release.
** Note: If the API change is for an Alpha/Experimental/DeveloperApi component, 
please note that as well.
* Missing classes/methods/parameters: We should create to-do JIRAs for 
functionality missing from Python, to be added in the next release cycle.  
Please use a *separate* JIRA (linked below as "requires") for this list of 
to-do items.
** *NOTE: These missing features should be added in the next release.  This 
work is just to generate a list of to-do items for the future.*

UPDATE: This only needs to cover spark.ml since spark.mllib is going into 
maintenance mode.


> ML 2.1 QA: API: Python API coverage
> -----------------------------------
>
>                 Key: SPARK-18320
>                 URL: https://issues.apache.org/jira/browse/SPARK-18320
>             Project: Spark
>          Issue Type: Sub-task
>          Components: Documentation, ML, PySpark
>            Reporter: Joseph K. Bradley
>            Priority: Blocker
>
> For new public APIs added to MLlib ({{spark.ml}} only), we need to check the 
> generated HTML doc and compare the Scala & Python versions.
> * *GOAL*: Audit and create JIRAs to fix in the next release.
> * *NON-GOAL*: This JIRA is _not_ for fixing the API parity issues.
> We need to track:
> * Inconsistency: Do class/method/parameter names match?
> * Docs: Is the Python doc missing or just a stub?  We want the Python doc to 
> be as complete as the Scala doc.
> * API breaking changes: These should be very rare but are occasionally either 
> necessary (intentional) or accidental.  These must be recorded and added in 
> the Migration Guide for this release.
> ** Note: If the API change is for an Alpha/Experimental/DeveloperApi 
> component, please note that as well.
> * Missing classes/methods/parameters: We should create to-do JIRAs for 
> functionality missing from Python, to be added in the next release cycle.  
> *Please use a _separate_ JIRA (linked below as "requires") for this list of 
> to-do items.*



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