private void writeContainerPlacementResponseMessage(ContainerPlacementRequestMessage requestMessage,
      ContainerPlacementMessage.StatusCode statusCode, String responseMessage) {
    containerPlacementMetadataStore.writeContainerPlacementResponseMessage(
        ContainerPlacementResponseMessage.fromContainerPlacementRequestMessage(requestMessage, statusCode,
            responseMessage, System.currentTimeMillis()));
  }
Check if a activeContainerResource has control-action-metadata associated with it
samza-core/src/main/java/org/apache/samza/clustermanager/ContainerManager.java