sarutak commented on a change in pull request #29082:
URL: https://github.com/apache/spark/pull/29082#discussion_r460655346
##########
File path: core/src/main/scala/org/apache/spark/status/AppStatusStore.scala
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@@ -421,6 +420,26 @@ private[spark] class AppStatusStore(
constructTaskDataList(taskDataWrapperIter)
}
+ def exceptionSummary(stageId: Int, attemptId: Int): Seq[v1.ExceptionSummary]
= {
+ val tasks = taskList(stageId, attemptId, Int.MaxValue)
+ tasks.filter(t => t.status.equalsIgnoreCase("failed"))
+ .flatMap(t => t.errorMessage)
Review comment:
Sometimes exceptions can have no error message.
For example, the summary is not shown with the following example.
```
sc.parallelize(1 to 10).foreach(_ => throw new RuntimeException())
```
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