Github user smurakozi commented on a diff in the pull request:
https://github.com/apache/spark/pull/20287#discussion_r162566289
--- Diff: core/src/main/scala/org/apache/spark/ui/jobs/AllJobsPage.scala ---
@@ -427,17 +430,24 @@ private[ui] class JobDataSource(
val formattedDuration = duration.map(d =>
UIUtils.formatDuration(d)).getOrElse("Unknown")
val submissionTime = jobData.submissionTime
val formattedSubmissionTime =
submissionTime.map(UIUtils.formatDate).getOrElse("Unknown")
- val lastStageAttempt = store.lastStageAttempt(jobData.stageIds.max)
- val lastStageDescription = lastStageAttempt.description.getOrElse("")
-
+ var lastStageDescription = ""
--- End diff --
Instead of catching the exception the logic should be modified to be
prepared for a missing stageAttempt.
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