HeartSaVioR commented on a change in pull request #23260: [SPARK-26311][YARN] 
New feature: custom log URL for stdout/stderr
URL: https://github.com/apache/spark/pull/23260#discussion_r248156970
 
 

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 File path: 
resource-managers/yarn/src/main/scala/org/apache/spark/deploy/yarn/ExecutorRunnable.scala
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 @@ -57,6 +58,12 @@ private[yarn] class ExecutorRunnable(
   var rpc: YarnRPC = YarnRPC.create(conf)
   var nmClient: NMClient = _
 
+  val clusterId: Option[String] = try {
 
 Review comment:
   I took a look at `Utils.tryLog` and that doesn't seem to fit my intention, 
since it logs error message which end users could get a wrong sign. If `RM 
cluster id` is a mandatory config we may need to take a different approach 
(like fail-fast). If that is optional, I think we should not leave an error log.

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