Github user kiszk commented on a diff in the pull request:
https://github.com/apache/spark/pull/22001#discussion_r208947201
--- Diff: core/src/main/scala/org/apache/spark/scheduler/DAGScheduler.scala
---
@@ -203,6 +203,17 @@ class DAGScheduler(
sc.getConf.getInt("spark.stage.maxConsecutiveAttempts",
DAGScheduler.DEFAULT_MAX_CONSECUTIVE_STAGE_ATTEMPTS)
+ /**
+ * Number of max concurrent tasks check failures for each job.
+ */
+ private[scheduler] val jobIdToNumTasksCheckFailures = new
ConcurrentHashMap[Int, Int]
+
+ /**
+ * Time in seconds to wait between a max concurrent tasks check failure
and the next check.
--- End diff --
nit: `a max` -> `max`?
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