Github user Ngone51 commented on a diff in the pull request:
https://github.com/apache/spark/pull/22001#discussion_r209662081
--- Diff: core/src/main/scala/org/apache/spark/scheduler/DAGScheduler.scala
---
@@ -402,6 +422,19 @@ class DAGScheduler(
}
}
+ /**
+ * Check whether the barrier stage requires more slots (to be able to
launch all tasks in the
+ * barrier stage together) than the total number of active slots
currently. Fail current check
+ * if trying to submit a barrier stage that requires more slots than
current total number. If
+ * the check fails consecutively for three times for a job, then fail
current job submission.
--- End diff --
Seems I do not find the code about `"consecutively for three times"`, but
only `maxFailureNumTasksCheck ` ?
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