Github user pwendell commented on the pull request: https://github.com/apache/spark/pull/4632#issuecomment-84209577 Hey @JoshRosen can probably take a look at this. One thing though, IIRC the reason why we have a unique ID here is because some sets of users requested the exact opposite behavior as what you want: https://issues.apache.org/jira/browse/SPARK-3377 If we do decide to allow this, I think it's best to have a specific set of naming schemes (don't give them a latch to chose an arbitrary conf), in order to limit the surface area of possible configurations. I'm also not so sure about the right way to do this in terms of the current MetricsConfing infrastructure. It seems a bit weird to hard code handling of this particular configuration hard coded in the MetricsConfig class. Only had time to take a quick look though and I'm not familiar with that code at all.
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