2 files changed, 8 insertions, 1 deletions
diff --git a/config-model/src/main/java/com/yahoo/config/model/deploy/TestProperties.java b/config-model/src/main/java/com/yahoo/config/model/deploy/TestProperties.java
index 62c192e2c99..a891e16e165 100644
--- a/config-model/src/main/java/com/yahoo/config/model/deploy/TestProperties.java
+++ b/config-model/src/main/java/com/yahoo/config/model/deploy/TestProperties.java
@@ -66,6 +66,7 @@ public class TestProperties implements ModelContext.Properties, ModelContext.Fea
     private List<X509Certificate> operatorCertificates = Collections.emptyList();
     private double resourceLimitDisk = 0.8;
     private double resourceLimitMemory = 0.8;
+    private double minNodeRatioPerGroup = 0.0;
 
     @Override public ModelContext.FeatureFlags featureFlags() { return this; }
     @Override public boolean multitenant() { return multitenant; }
@@ -111,6 +112,7 @@ public class TestProperties implements ModelContext.Properties, ModelContext.Fea
     @Override public boolean dryRunOnnxOnSetup() { return dryRunOnnxOnSetup; }
     @Override public double resourceLimitDisk() { return resourceLimitDisk; }
     @Override public double resourceLimitMemory() { return resourceLimitMemory; }
+    @Override public double minNodeRatioPerGroup() { return minNodeRatioPerGroup; }
 
     public TestProperties setDryRunOnnxOnSetup(boolean value) {
         dryRunOnnxOnSetup = value;
@@ -274,6 +276,11 @@ public class TestProperties implements ModelContext.Properties, ModelContext.Fea
         return this;
     }
 
+    public TestProperties setMinNodeRatioPerGroup(double value) {
+        this.minNodeRatioPerGroup = value;
+        return this;
+    }
+
     public static class Spec implements ConfigServerSpec {
 
         private final String hostName;
diff --git a/config-model/src/main/java/com/yahoo/vespa/model/content/ClusterControllerConfig.java b/config-model/src/main/java/com/yahoo/vespa/model/content/ClusterControllerConfig.java
index 66ec0d81947..b3d03bbbfdb 100644
--- a/config-model/src/main/java/com/yahoo/vespa/model/content/ClusterControllerConfig.java
+++ b/config-model/src/main/java/com/yahoo/vespa/model/content/ClusterControllerConfig.java
@@ -35,7 +35,7 @@ public class ClusterControllerConfig extends AbstractConfigProducer<ClusterContr
 
             ModelElement clusterTuning = clusterElement.child("tuning");
             Integer bucketSplittingMinimumBits = null;
-            Double minNodeRatioPerGroup = null;
+            Double minNodeRatioPerGroup = deployState.getProperties().featureFlags().minNodeRatioPerGroup();
             if (clusterTuning != null) {
                 tuning = clusterTuning.child("cluster-controller");
                 minNodeRatioPerGroup = clusterTuning.childAsDouble("min-node-ratio-per-group");