public long getExecutionCommandsCacheSize() {
    String stringValue = getProperty(SERVER_EC_CACHE_SIZE);
    long value = SERVER_EC_CACHE_SIZE.getDefaultValue();
    if (stringValue != null) {
      try {
        value = Long.parseLong(stringValue);
      } catch (NumberFormatException ignored) {
      }

    }

    return value;
  }
@return the set of properties to mask in the api that
returns ambari.properties
ambari-server/src/main/java/org/apache/ambari/server/configuration/Configuration.java