Github user kayousterhout commented on a diff in the pull request:
https://github.com/apache/spark/pull/3003#discussion_r19635782
--- Diff:
core/src/test/scala/org/apache/spark/scheduler/TaskSetManagerSuite.scala ---
@@ -563,6 +563,28 @@ class TaskSetManagerSuite extends FunSuite with
LocalSparkContext with Logging {
assert(manager.emittedTaskSizeWarning)
}
+ test("abort the job if total size of results is too large") {
+ val conf = new SparkConf().set("spark.driver.maxResultSize", "2m")
+ sc = new SparkContext("local", "test", conf)
+
+ // make it serializable
+ val genBytes = (size: Int) => { (x: Int) =>
+ val bytes = Array.ofDim[Byte](size)
+ scala.util.Random.nextBytes(bytes)
+ bytes
+ }
+
+ // multiple 1k result
+ val r = sc.makeRDD(0 until 10, 10).map(genBytes(1024)).collect()
+ assert(10 === r.size )
+
+ // single 10M result
+ intercept[SparkException] {sc.makeRDD(genBytes(10 << 20)(0),
1).collect()}
--- End diff --
Can you also make sure this is the correct exception (the result too big
one)?
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