@Override
  protected List<ResponseInfo> getNonQuotaCompliantResponses() {
    List<ResponseInfo> nonCompliantResponses = nonCompliantRequests.stream().map(requestInfo -> {
      // Release the Netty ByteBuf here since they are not sent out to Network layer.
      requestInfo.getRequest().release();
      return new ResponseInfo(requestInfo, true);
    }).collect(Collectors.toList());
    nonCompliantRequests.clear();
    return nonCompliantResponses;
  }
Poll for out of quota requests that are allowed to exceed quota.
@param requestsToSend {@link List} of {@link RequestInfo} to be sent.
@param requestQueue {@link Map} of {@link QuotaResource} to {@link List} of {@link RequestInfo} from which the requests to be sent will be polled.
ambry-router/src/main/java/com/github/ambry/router/QuotaAwareOperationController.java