@Override
  public DataNodeConfig get(String instanceName) {
    String path = getPath(instanceName);
    ZNRecord record = propertyStore.get(path, new Stat(), AccessOption.PERSISTENT);
    return record != null ? converter.convert(record) : null;
  }
An implementation of {@link DataNodeConfigSource} that reads {@link ZNRecord}s stored under the
"/DataNodeConfigs" path in a {@link HelixPropertyStore}.
ambry-clustermap/src/main/java/com/github/ambry/clustermap/PropertyStoreToDataNodeConfigAdapter.java