arunmahadevan commented on a change in pull request #24630: [SPARK-27754][K8S]
Introduce additional config (spark.kubernetes.driver.request.cores) for driver
request cores for spark on k8s
URL: https://github.com/apache/spark/pull/24630#discussion_r285254234
##########
File path:
resource-managers/kubernetes/core/src/test/scala/org/apache/spark/deploy/k8s/features/BasicDriverFeatureStepSuite.scala
##########
@@ -117,6 +117,33 @@ class BasicDriverFeatureStepSuite extends SparkFunSuite {
assert(featureStep.getAdditionalPodSystemProperties() ===
expectedSparkConf)
}
+ test("Check driver pod respects kubernetes driver request cores") {
+ val sparkConf = new SparkConf()
+ .set(KUBERNETES_DRIVER_POD_NAME, "spark-driver-pod")
+ .set(CONTAINER_IMAGE, "spark-driver:latest")
+
+ val basePod = SparkPod.initialPod()
+ val requests1 = new
BasicDriverFeatureStep(KubernetesTestConf.createDriverConf(sparkConf))
+ .configurePod(basePod)
+ .container.getResources
+ .getRequests.asScala
+ assert(requests1("cpu").getAmount === "1")
Review comment:
@dongjoon-hyun , the logic in BasicDriverFeatureStep
`private val driverCpuCores = conf.get(DRIVER_CORES.key, "1")`
, sets the value of `driverCpuCores` to "1" if `spark.driver.cores` is not
set in the spark conf. i.e. we don't use the `DRIVER_CORES.defaultValue` there.
Let me know if my understanding is correct.
If so I cannot do something like `assert(requests1("cpu").getAmount ===
DRIVER_CORES.defaultValue)` here (assume this is what you are suggesting).
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