Xiangrui Meng created SPARK-5757:
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Summary: Use json4s instead of DataFrame.toJSON in model export
Key: SPARK-5757
URL: https://issues.apache.org/jira/browse/SPARK-5757
Project: Spark
Issue Type: Improvement
Components: MLlib
Affects Versions: 1.3.0
Reporter: Xiangrui Meng
Assignee: Xiangrui Meng
Priority: Critical
We use DataFrame.toJSON to save/load model metadata, which depends on
DataFrame's JSON support and subject to changes made there. To avoid conflicts,
e.g., https://github.com/apache/spark/pull/4544, we should use json4s directly.
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