.setPreferredWrites(1)
.setRequiredWrites(1)
.build();
Store<String, String, String> innerStore = new InMemoryStorageEngine<String, String, String>("inner-store");
innerStore.put(MetadataStore.CLUSTER_KEY,
new Versioned<String>(new ClusterMapper().writeCluster(currentCluster)),
null);
innerStore.put(MetadataStore.STORES_KEY,
new Versioned<String>(new StoreDefinitionsMapper().writeStoreList(Lists.newArrayList(rwStoreDefWithReplication))),
null);