Github user squito commented on a diff in the pull request:
https://github.com/apache/spark/pull/7753#discussion_r40018396
--- Diff: core/src/main/scala/org/apache/spark/executor/Executor.scala ---
@@ -85,6 +85,9 @@ private[spark] class Executor(
env.blockManager.initialize(conf.getAppId)
}
+ private val executorMetrics: ExecutorMetrics = new ExecutorMetrics
+ executorMetrics.setHostname(Utils.localHostName)
--- End diff --
is the hostname really enough? What about with multiple executors on the
same host? The `Heartbeat` already has the `executorId`, maybe that is all we
need?
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