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https://issues.apache.org/jira/browse/SPARK-10764?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15931815#comment-15931815
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Apache Spark commented on SPARK-10764:
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User 'sachintyagi22' has created a pull request for this issue:
https://github.com/apache/spark/pull/17332

> Add optional caching to Pipelines
> ---------------------------------
>
>                 Key: SPARK-10764
>                 URL: https://issues.apache.org/jira/browse/SPARK-10764
>             Project: Spark
>          Issue Type: Sub-task
>          Components: ML
>            Reporter: Joseph K. Bradley
>
> We need to explore how to cache DataFrames during the execution of Pipelines. 
>  It's a hard problem in general to handle automatically or manually, so we 
> should start with some design discussions about:
> * How to control it manually
> * Whether & how to handle it automatically
> * API changes needed for each



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