Ngone51 commented on a change in pull request #31869:
URL: https://github.com/apache/spark/pull/31869#discussion_r597512159



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File path: core/src/main/scala/org/apache/spark/ui/jobs/StagePage.scala
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@@ -786,9 +786,13 @@ private[spark] object ApiHelper {
     stageData.accumulatorUpdates.exists { acc => acc.name != null && acc.value 
!= null }
   }
 
-  def hasInput(stageData: StageData): Boolean = stageData.inputBytes > 0
+  def hasInput(stageData: StageData): Boolean = {
+    stageData.inputBytes > 0 || stageData.inputRecords > 0

Review comment:
       If we're sure that it's because some resources do not provide certain 
metrics rather than they counted incorrectly, then, I think the current fix 
should be fine. Otherwise, I think we should fix the counting of metrics 
instead(as it's a bug).
   Good to see to figure out the root cause first.
   
   




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