Github user zhengruifeng commented on the issue: https://github.com/apache/spark/pull/16194 Good point. This make me think of the usage of `instr.logParams(params: _*)` in training instrumentation [https://github.com/apache/spark/pull/15671]. IMIO, params are copied from its trainer, and some are not significant for the model. For `KMeansModel`, I think only param `k` make sense, others are just the params to create the model. I am not sure whether we should print all shared params of model.
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