Kimahriman commented on a change in pull request #35504:
URL: https://github.com/apache/spark/pull/35504#discussion_r808994036
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File path: core/src/main/scala/org/apache/spark/internal/config/package.scala
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@@ -105,6 +105,17 @@ package object config {
.bytesConf(ByteUnit.MiB)
.createOptional
+ private[spark] val DRIVER_MEMORY_OVERHEAD_FACTOR =
+ ConfigBuilder("spark.driver.memoryOverheadFactor")
+ .doc("The amount of non-heap memory to be allocated per driver in
cluster mode, " +
+ "as a fraction of total driver memory. If memory overhead is specified
directly, " +
+ "it takes precedence.")
+ .version("3.3.0")
+ .doubleConf
+ .checkValue(factor => factor >= 0 && factor < 1,
+ "Ensure that memory overhead is a double between 0 --> 1.0")
Review comment:
yeah wasn't sure why there was an upper limit, just copied from k8s
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