1 files changed, 3 insertions, 4 deletions
diff --git a/node-repository/src/main/java/com/yahoo/vespa/hosted/provision/autoscale/AllocationOptimizer.java b/node-repository/src/main/java/com/yahoo/vespa/hosted/provision/autoscale/AllocationOptimizer.java
index 7fa369da9c6..5bebd346bdb 100644
--- a/node-repository/src/main/java/com/yahoo/vespa/hosted/provision/autoscale/AllocationOptimizer.java
+++ b/node-repository/src/main/java/com/yahoo/vespa/hosted/provision/autoscale/AllocationOptimizer.java
@@ -57,8 +57,8 @@ public class AllocationOptimizer {
 
                 // Adjust for redundancy: Node in group if groups = 1, an extra group if multiple groups
                 // TODO: Make the best choice based on size and redundancy setting instead
-                int nodesAdjustedForRedundancy = target.adjustForRedundancy() ? (groups == 1 ? nodes - 1 : nodes - groupSize) : nodes;
-                int groupsAdjustedForRedundancy = target.adjustForRedundancy() ? (groups == 1 ? 1 : groups - 1) : groups;
+                int nodesAdjustedForRedundancy =  target.adjustForRedundancy() && nodes > 1 ? (groups == 1 ? nodes - 1 : nodes - groupSize) : nodes;
+                int groupsAdjustedForRedundancy = target.adjustForRedundancy() && nodes > 1 ? (groups == 1 ? 1 : groups - 1) : groups;
 
                 ClusterResources next = new ClusterResources(nodes,
                                                              groups,
@@ -67,7 +67,6 @@ public class AllocationOptimizer {
                                                                                limits, target, current, clusterModel));
                 var allocatableResources = AllocatableClusterResources.from(next, current.clusterSpec(), limits,
                                                                             hosts, nodeRepository);
-
                 if (allocatableResources.isEmpty()) continue;
                 if (bestAllocation.isEmpty() || allocatableResources.get().preferableTo(bestAllocation.get()))
                     bestAllocation = allocatableResources;
@@ -96,6 +95,7 @@ public class AllocationOptimizer {
             // The fixed cost portion of cpu does not scale with changes to the node count
             double queryCpuPerGroup = fixedCpuCostFraction * target.resources().vcpu() +
                                       (1 - fixedCpuCostFraction) * target.resources().vcpu() * current.groupSize() / groupSize;
+
             double queryCpu = queryCpuPerGroup * current.groups() / groups;
             double writeCpu = target.resources().vcpu() * current.groupSize() / groupSize;
             cpu = clusterModel.queryCpuFraction() * queryCpu + (1 - clusterModel.queryCpuFraction()) * writeCpu;
@@ -107,7 +107,6 @@ public class AllocationOptimizer {
             memory = target.resources().memoryGb();
             disk = target.resources().diskGb();
         }
-
         // Combine the scaled resource values computed here
         // with the currently configured non-scaled values, given in the limits, if any
         NodeResources nonScaled = limits.isEmpty() || limits.min().nodeResources().isUnspecified()