public void setVisibilityDelay(double delay) {
        this.visibilityDelay=delay;
        if (searchCluster != null) {
            searchCluster.setVisibilityDelay(delay);
        }
    }
Whether the nodes of this cluster also hosts a container cluster in a hosted system
config-model/src/main/java/com/yahoo/vespa/model/content/ContentSearchCluster.java