ron8hu commented on a change in pull request #31001:
URL: https://github.com/apache/spark/pull/31001#discussion_r551530183
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File path:
core/src/main/scala/org/apache/spark/status/api/v1/StagesResource.scala
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@@ -154,6 +154,29 @@ private[v1] class StagesResource extends BaseAppResource {
}
}
+ @GET
+ @Path("{stageId: \\d+}/{stageAttemptId: \\d+}/executorMetricsDistribution")
+ def executorSummary(
+ @PathParam("stageId") stageId: Int,
+ @PathParam("stageAttemptId") stageAttemptId: Int,
+ @DefaultValue("0.05,0.25,0.5,0.75,0.95")
Review comment:
change the default value to 0.0,0.25,0.5,0.75,1.0. In a parallel
system, the duration of a stage is often determined by the slowest
task/executor. To monitor/debug a skew issue, the maximal value (or 100%
percentile value) is more useful than the 95% percentile value.
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