Xiangrui Meng created SPARK-5695:
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Summary: Check GBT caching logic
Key: SPARK-5695
URL: https://issues.apache.org/jira/browse/SPARK-5695
Project: Spark
Issue Type: Task
Components: MLlib
Reporter: Xiangrui Meng
Assignee: Xiangrui Meng
A user reported that `t(n) = t(n-1) + const`, which may caused by cached RDDs
being kicked out during training. We want to check whether there exists space
to improve the caching logic.
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