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Posted to issues@spark.apache.org by "Jason Wang (JIRA)" <ji...@apache.org> on 2019/05/31 00:20:00 UTC

[jira] [Created] (SPARK-27892) Saving/loading stages in PipelineModel should be parallel

Jason Wang created SPARK-27892:
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             Summary: Saving/loading stages in PipelineModel should be parallel
                 Key: SPARK-27892
                 URL: https://issues.apache.org/jira/browse/SPARK-27892
             Project: Spark
          Issue Type: Improvement
          Components: ML
    Affects Versions: 2.4.3
            Reporter: Jason Wang


When a PipelineModel is saved/loaded, all the stages are saved/loaded sequentially. When dealing with a PipelineModel with many stages, although each stage's save/load takes sub-second, the total time taken for the PipelineModel could be several minutes. It should be trivial to parallelize the save/load of stages in the SharedReadWrite object.



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