Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/2432#discussion_r18313378
--- Diff: core/src/main/scala/org/apache/spark/metrics/MetricsSystem.scala
---
@@ -98,10 +96,23 @@ private[spark] class MetricsSystem private (
sinks.foreach(_.report())
}
+ def buildRegistryName(source: Source) = {
+ for {
+ appName <- conf.getOption("spark.app.name")
--- End diff --
If you look at the code below on line 105, it looks like the actual name
incorporates `appId`, so I think it will be unique:
```scala
MetricRegistry.name(appId, appName, executorId, source.sourceName)
```
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