squito commented on issue #23306: [SPARK-26357][Core] Expose executors' procfs metrics to Metrics system URL: https://github.com/apache/spark/pull/23306#issuecomment-447031130 I don't think you have to disallow both the executor metrics & the metricssystem, its fine to allow both. If we're concerned about overhead, then it would make sense to have the metrics getter cache the previously computed values, and only recompute every N millis (configurable). Seems like overkill at this point
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