StorServerProducer build(ModelElement element) {
            ModelElement tuning = element.child("tuning");

            StorServerProducer producer = new StorServerProducer(ContentCluster.getClusterId(element));
            if (tuning == null) return producer;

            ModelElement merges = tuning.child("merges");
            if (merges == null) return producer;

            producer.setMaxMergesPerNode(merges.integerAttribute("max-per-node"))
                    .setMaxQueueSize(merges.integerAttribute("max-queue-size"));
            return producer;
        }
Serves config for stor-server for storage clusters (clusters of storage nodes).
config-model/src/main/java/com/yahoo/vespa/model/content/storagecluster/StorServerProducer.java