Do not migrate testers
@@ -51,6 +51,7 @@ public class DedicatedClusterControllerClusterMigrator extends ApplicationMainta
return nodeRepository().applications().ids().stream()
.sorted()
+ .filter(id -> ! id.instance().isTester())
.filter(this::isEligible)
.filter(this::hasNotSwitched)
.filter(this::isQuiescent)
