public void addContainerMb(Integer containerMemoryMb) {
    addToMetricsMessage(GROUP_NAME_FOR_DIAGNOSTICS_MANAGER, CONTAINER_MB_METRIC_NAME, containerMemoryMb);
  }
Add the container memory mb parameter to the message.
@param containerMemoryMb the memory mb parameter value.
samza-core/src/main/scala/org/apache/samza/diagnostics/DiagnosticsStreamMessage.java