Github user jerryshao commented on a diff in the pull request:
https://github.com/apache/spark/pull/22279#discussion_r214234325
--- Diff: core/src/main/scala/org/apache/spark/metrics/MetricsSystem.scala
---
@@ -103,6 +103,14 @@ private[spark] class MetricsSystem private (
sinks.foreach(_.start)
}
+ // Same as start but this method only registers sinks
--- End diff --
Would you please explain why only registering sinks could solve the problem
here?
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