[GitHub] spark issue #23263: [SPARK-23674][ML] Adds Spark ML Events

[SparkQA]

Github user SparkQA commented on the issue:

    https://github.com/apache/spark/pull/23263
  
    **[Test build #99868 has 
finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/99868/testReport)**
 for PR 23263 at commit 
[`a9112f3`](https://github.com/apache/spark/commit/a9112f33ff8fbfb66bad76bff6898abdef5b6881).
     * This patch **fails Spark unit tests**.
     * This patch merges cleanly.
     * This patch adds the following public classes _(experimental)_:
      * `case class TransformStart(transformer: Transformer, input: Dataset[_]) 
extends MLEvent`
      * `case class TransformEnd(transformer: Transformer, output: Dataset[_]) 
extends MLEvent`
      * `case class FitStart[M <: Model[M]](estimator: Estimator[M], dataset: 
Dataset[_]) extends MLEvent`
      * `case class FitEnd[M <: Model[M]](estimator: Estimator[M], model: M) 
extends MLEvent`
      * `case class LoadInstanceStart[T](reader: MLReader[T], path: String) 
extends MLEvent`
      * `case class LoadInstanceEnd[T](reader: MLReader[T], instance: T) 
extends MLEvent`
      * `case class SaveInstanceStart(writer: MLWriter, path: String) extends 
MLEvent`
      * `case class SaveInstanceEnd(writer: MLWriter, path: String) extends 
MLEvent`


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