srowen commented on a change in pull request #23457: [SPARK-26539][CORE] Remove
spark.memory.useLegacyMode and StaticMemoryManager
URL: https://github.com/apache/spark/pull/23457#discussion_r245426337
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File path:
core/src/test/scala/org/apache/spark/util/collection/ExternalAppendOnlyMapSuite.scala
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@@ -550,12 +550,11 @@ class ExternalAppendOnlyMapSuite extends SparkFunSuite
test("force to spill for external aggregation") {
val conf = createSparkConf(loadDefaults = false)
- .set("spark.shuffle.memoryFraction", "0.01")
- .set("spark.memory.useLegacyMode", "true")
- .set("spark.testing.memory", "100000000")
+ .set("spark.memory.storageFraction", "0.999")
+ .set("spark.testing.memory", "471859200")
Review comment:
This is the minimum allowed value. The new setting 0.999 mimics having
almost no shuffle memory
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