Github user squito commented on a diff in the pull request:
https://github.com/apache/spark/pull/18950#discussion_r134501323
--- Diff:
core/src/test/scala/org/apache/spark/ExecutorAllocationManagerSuite.scala ---
@@ -188,10 +192,195 @@ class ExecutorAllocationManagerSuite
assert(numExecutorsTarget(manager) === 10)
}
+ test("add executors capped by max concurrent tasks for a job group with
single core executors") {
+ val conf = new SparkConf()
+ .setMaster("myDummyLocalExternalClusterManager")
+ .setAppName("test-executor-allocation-manager")
+ .set("spark.dynamicAllocation.enabled", "true")
+ .set("spark.dynamicAllocation.testing", "true")
+ .set("spark.job.group1.maxConcurrentTasks", "2")
+ .set("spark.job.group2.maxConcurrentTasks", "5")
+ val sc = new SparkContext(conf)
+ contexts += sc
+ sc.setJobGroup("group1", "", false)
+
+ val manager = sc.executorAllocationManager.get
+ val stages = Seq(createStageInfo(0, 10), createStageInfo(1, 10))
+ // Submit the job and stage start/submit events
+ sc.listenerBus.postToAll(SparkListenerJobStart(0, 0, stages,
sc.getLocalProperties))
+ sc.listenerBus.postToAll(SparkListenerStageSubmitted(stages(0)))
+
+ // Verify that we're capped at number of max concurrent tasks in the
stage
+ assert(maxNumExecutorsNeeded(manager) === 2)
+
+ // Submit another stage in the same job
+ sc.listenerBus.postToAll(SparkListenerStageSubmitted(stages(1)))
+ assert(maxNumExecutorsNeeded(manager) === 2)
+
+ sc.listenerBus.postToAll(SparkListenerStageCompleted(stages(0)))
+ sc.listenerBus.postToAll(SparkListenerStageCompleted(stages(1)))
+ sc.listenerBus.postToAll(SparkListenerJobEnd(0, 10, JobSucceeded))
+
+ // Submit a new job in the same job group
+ val stage2 = createStageInfo(2, 20)
+ sc.listenerBus.postToAll(SparkListenerJobStart(1, 0, Seq{stage2},
sc.getLocalProperties))
--- End diff --
nit: still a few `Seq{}` you missed
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