milenkovicm commented on code in PR #2828:
URL:
https://github.com/apache/datafusion-ballista/pull/2828#discussion_r4515763910
##########
ballista/scheduler/src/state/aqe/test/job_success.rs:
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@@ -97,3 +103,43 @@ async fn
nested_aggregation_reports_non_final_stages_as_intermediate() -> Result
assert_intermediate_excludes_only_final_stage(&graph);
Ok(())
}
+
+/// Tasks of one stage can run plans that report different numbers of operator
+/// metrics: the scheduler restricts each task's copy of the stage plan to its
+/// partitions, and that can swap a leaf without metrics (`EmptyExec` under a
+/// `UnionExec`, say) for one with them. The metrics of such a task cannot be
+/// merged with the stage's, but the task still succeeded. Its status must be
+/// applied anyway, or the stage never completes and the job hangs.
+#[tokio::test]
Review Comment:
checked, this will defiantly fail without given change
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