viirya commented on code in PR #135:
URL:
https://github.com/apache/spark-kubernetes-operator/pull/135#discussion_r1771795002
##########
spark-submission-worker/src/main/java/org/apache/spark/k8s/operator/SparkClusterResourceSpec.java:
##########
@@ -271,4 +277,55 @@ private static StatefulSet buildWorkerStatefulSet(
.endSpec()
.build();
}
+
+ private static Optional<HorizontalPodAutoscaler>
buildHorizontalPodAutoscaler(
+ String clusterName, String namespace, ClusterSpec spec) {
+ var instanceConfig = spec.getClusterTolerations().getInstanceConfig();
+ if (instanceConfig.getMinWorkers() >= instanceConfig.getMaxWorkers()) {
+ return Optional.empty();
+ }
+ return Optional.of(
+ new HorizontalPodAutoscalerBuilder()
+ .withNewMetadata()
+ .withNamespace(namespace)
+ .withName(clusterName + "-worker-hpa")
+ .endMetadata()
+ .withNewSpec()
+ .withNewScaleTargetRef()
+ .withApiVersion("apps/v1")
+ .withKind("StatefulSet")
+ .withName(clusterName + "-worker")
+ .endScaleTargetRef()
+ .withMinReplicas(instanceConfig.getMinWorkers())
+ .withMaxReplicas(instanceConfig.getMaxWorkers())
+ .addToMetrics(
+ new MetricSpecBuilder()
+ .withType("Resource")
+ .withNewResource()
+ .withName("cpu")
+ .withNewTarget()
+ .withType("Utilization")
+ .withAverageUtilization(30)
+ .endTarget()
+ .endResource()
+ .build())
Review Comment:
Okay. Looking forward to the next steps. Thanks.
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