[GitHub] [spark] abellina commented on a change in pull request #25403: [SPARK-28679][YARN] changes to setResourceInformation to handle empty resources and reflection error handling

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abellina commented on a change in pull request #25403: [SPARK-28679][YARN] changes to setResourceInformation to handle empty resources and reflection error handling
URL: https://github.com/apache/spark/pull/25403#discussion_r312748049
 
 

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 File path: resource-managers/yarn/src/main/scala/org/apache/spark/deploy/yarn/ResourceRequestHelper.scala
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 @@ -153,7 +153,14 @@ private object ResourceRequestHelper extends Logging {
 
     val resInfoClass = Utils.classForName(RESOURCE_INFO_CLASS)
     val setResourceInformationMethod =
-      resource.getClass.getMethod("setResourceInformation", classOf[String], resInfoClass)
+      try { 
+        resource.getClass.getMethod("setResourceInformation", classOf[String], resInfoClass)
+      } catch {
+        case e: NoSuchMethodException => 
+          logError(s"Cannot find $RESOURCE_INFO_CLASS.setResourceInformation. This is likely due to a jar conflict between different yarn versions. Unable to set resources.")
 
 Review comment:
   @dongjoon-hyun sorry about that. Fixed.

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