Examples with Send com.github.ambry.network.Send used on opensource projects

Example 1 with Send

use of com.github.ambry.network.Send in project ambry by linkedin.

the class AmbryRequests method handleGetRequest.

public void handleGetRequest(Request request) throws IOException, InterruptedException {
    GetRequest getRequest = GetRequest.readFrom(new DataInputStream(request.getInputStream()), clusterMap);
    Histogram responseQueueTime = null;
    Histogram responseSendTime = null;
    Histogram responseTotalTime = null;
    long requestQueueTime = SystemTime.getInstance().milliseconds() - request.getStartTimeInMs();
    long totalTimeSpent = requestQueueTime;
    if (getRequest.getMessageFormatFlag() == MessageFormatFlags.Blob) {
        metrics.getBlobRequestQueueTimeInMs.update(requestQueueTime);
        metrics.getBlobRequestRate.mark();
        responseQueueTime = metrics.getBlobResponseQueueTimeInMs;
        responseSendTime = metrics.getBlobSendTimeInMs;
        responseTotalTime = metrics.getBlobTotalTimeInMs;
    } else if (getRequest.getMessageFormatFlag() == MessageFormatFlags.BlobProperties) {
        metrics.getBlobPropertiesRequestQueueTimeInMs.update(requestQueueTime);
        metrics.getBlobPropertiesRequestRate.mark();
        responseQueueTime = metrics.getBlobPropertiesResponseQueueTimeInMs;
        responseSendTime = metrics.getBlobPropertiesSendTimeInMs;
        responseTotalTime = metrics.getBlobPropertiesTotalTimeInMs;
    } else if (getRequest.getMessageFormatFlag() == MessageFormatFlags.BlobUserMetadata) {
        metrics.getBlobUserMetadataRequestQueueTimeInMs.update(requestQueueTime);
        metrics.getBlobUserMetadataRequestRate.mark();
        responseQueueTime = metrics.getBlobUserMetadataResponseQueueTimeInMs;
        responseSendTime = metrics.getBlobUserMetadataSendTimeInMs;
        responseTotalTime = metrics.getBlobUserMetadataTotalTimeInMs;
    } else if (getRequest.getMessageFormatFlag() == MessageFormatFlags.BlobInfo) {
        metrics.getBlobInfoRequestQueueTimeInMs.update(requestQueueTime);
        metrics.getBlobInfoRequestRate.mark();
        responseQueueTime = metrics.getBlobInfoResponseQueueTimeInMs;
        responseSendTime = metrics.getBlobInfoSendTimeInMs;
        responseTotalTime = metrics.getBlobInfoTotalTimeInMs;
    } else if (getRequest.getMessageFormatFlag() == MessageFormatFlags.All) {
        metrics.getBlobAllRequestQueueTimeInMs.update(requestQueueTime);
        metrics.getBlobAllRequestRate.mark();
        responseQueueTime = metrics.getBlobAllResponseQueueTimeInMs;
        responseSendTime = metrics.getBlobAllSendTimeInMs;
        responseTotalTime = metrics.getBlobAllTotalTimeInMs;
    }
    long startTime = SystemTime.getInstance().milliseconds();
    GetResponse response = null;
    try {
        List<Send> messagesToSendList = new ArrayList<Send>(getRequest.getPartitionInfoList().size());
        List<PartitionResponseInfo> partitionResponseInfoList = new ArrayList<PartitionResponseInfo>(getRequest.getPartitionInfoList().size());
        for (PartitionRequestInfo partitionRequestInfo : getRequest.getPartitionInfoList()) {
            ServerErrorCode error = validateRequest(partitionRequestInfo.getPartition(), RequestOrResponseType.GetRequest);
            if (error != ServerErrorCode.No_Error) {
                logger.error("Validating get request failed for partition {} with error {}", partitionRequestInfo.getPartition(), error);
                PartitionResponseInfo partitionResponseInfo = new PartitionResponseInfo(partitionRequestInfo.getPartition(), error);
                partitionResponseInfoList.add(partitionResponseInfo);
            } else {
                try {
                    Store storeToGet = storageManager.getStore(partitionRequestInfo.getPartition());
                    EnumSet<StoreGetOptions> storeGetOptions = EnumSet.noneOf(StoreGetOptions.class);
                    // Currently only one option is supported.
                    if (getRequest.getGetOption() == GetOption.Include_Expired_Blobs) {
                        storeGetOptions = EnumSet.of(StoreGetOptions.Store_Include_Expired);
                    }
                    if (getRequest.getGetOption() == GetOption.Include_Deleted_Blobs) {
                        storeGetOptions = EnumSet.of(StoreGetOptions.Store_Include_Deleted);
                    }
                    if (getRequest.getGetOption() == GetOption.Include_All) {
                        storeGetOptions = EnumSet.of(StoreGetOptions.Store_Include_Deleted, StoreGetOptions.Store_Include_Expired);
                    }
                    StoreInfo info = storeToGet.get(partitionRequestInfo.getBlobIds(), storeGetOptions);
                    MessageFormatSend blobsToSend = new MessageFormatSend(info.getMessageReadSet(), getRequest.getMessageFormatFlag(), messageFormatMetrics, storeKeyFactory);
                    PartitionResponseInfo partitionResponseInfo = new PartitionResponseInfo(partitionRequestInfo.getPartition(), info.getMessageReadSetInfo(), blobsToSend.getMessageMetadataList());
                    messagesToSendList.add(blobsToSend);
                    partitionResponseInfoList.add(partitionResponseInfo);
                } catch (StoreException e) {
                    boolean logInErrorLevel = false;
                    if (e.getErrorCode() == StoreErrorCodes.ID_Not_Found) {
                        metrics.idNotFoundError.inc();
                    } else if (e.getErrorCode() == StoreErrorCodes.TTL_Expired) {
                        metrics.ttlExpiredError.inc();
                    } else if (e.getErrorCode() == StoreErrorCodes.ID_Deleted) {
                        metrics.idDeletedError.inc();
                    } else if (e.getErrorCode() == StoreErrorCodes.Authorization_Failure) {
                        metrics.getAuthorizationFailure.inc();
                    } else {
                        metrics.unExpectedStoreGetError.inc();
                        logInErrorLevel = true;
                    }
                    if (logInErrorLevel) {
                        logger.error("Store exception on a get with error code {} for partition {}", e.getErrorCode(), partitionRequestInfo.getPartition(), e);
                    } else {
                        logger.trace("Store exception on a get with error code {} for partition {}", e.getErrorCode(), partitionRequestInfo.getPartition(), e);
                    }
                    PartitionResponseInfo partitionResponseInfo = new PartitionResponseInfo(partitionRequestInfo.getPartition(), ErrorMapping.getStoreErrorMapping(e.getErrorCode()));
                    partitionResponseInfoList.add(partitionResponseInfo);
                } catch (MessageFormatException e) {
                    logger.error("Message format exception on a get with error code " + e.getErrorCode() + " for partitionRequestInfo " + partitionRequestInfo, e);
                    if (e.getErrorCode() == MessageFormatErrorCodes.Data_Corrupt) {
                        metrics.dataCorruptError.inc();
                    } else if (e.getErrorCode() == MessageFormatErrorCodes.Unknown_Format_Version) {
                        metrics.unknownFormatError.inc();
                    }
                    PartitionResponseInfo partitionResponseInfo = new PartitionResponseInfo(partitionRequestInfo.getPartition(), ErrorMapping.getMessageFormatErrorMapping(e.getErrorCode()));
                    partitionResponseInfoList.add(partitionResponseInfo);
                }
            }
        }
        CompositeSend compositeSend = new CompositeSend(messagesToSendList);
        response = new GetResponse(getRequest.getCorrelationId(), getRequest.getClientId(), partitionResponseInfoList, compositeSend, ServerErrorCode.No_Error);
    } catch (Exception e) {
        logger.error("Unknown exception for request " + getRequest, e);
        response = new GetResponse(getRequest.getCorrelationId(), getRequest.getClientId(), ServerErrorCode.Unknown_Error);
    } finally {
        long processingTime = SystemTime.getInstance().milliseconds() - startTime;
        totalTimeSpent += processingTime;
        publicAccessLogger.info("{} {} processingTime {}", getRequest, response, processingTime);
        if (getRequest.getMessageFormatFlag() == MessageFormatFlags.Blob) {
            metrics.getBlobProcessingTimeInMs.update(processingTime);
            metrics.updateGetBlobProcessingTimeBySize(response.sizeInBytes(), processingTime);
        } else if (getRequest.getMessageFormatFlag() == MessageFormatFlags.BlobProperties) {
            metrics.getBlobPropertiesProcessingTimeInMs.update(processingTime);
        } else if (getRequest.getMessageFormatFlag() == MessageFormatFlags.BlobUserMetadata) {
            metrics.getBlobUserMetadataProcessingTimeInMs.update(processingTime);
        } else if (getRequest.getMessageFormatFlag() == MessageFormatFlags.BlobInfo) {
            metrics.getBlobInfoProcessingTimeInMs.update(processingTime);
        } else if (getRequest.getMessageFormatFlag() == MessageFormatFlags.All) {
            metrics.getBlobAllProcessingTimeInMs.update(processingTime);
            metrics.updateGetBlobProcessingTimeBySize(response.sizeInBytes(), processingTime);
        }
    }
    sendGetResponse(requestResponseChannel, response, request, responseQueueTime, responseSendTime, responseTotalTime, totalTimeSpent, response.sizeInBytes(), getRequest.getMessageFormatFlag(), metrics);
}

Example 2 with Send

use of com.github.ambry.network.Send in project ambry by linkedin.

the class AmbryRequests method handleGetRequest.

@Override
public void handleGetRequest(NetworkRequest request) throws IOException, InterruptedException {
    GetRequest getRequest;
    if (request instanceof LocalChannelRequest) {
        // This is a case where handleGetRequest is called when frontends are reading from Azure. In this case, this method
        // is called by request handler threads running within the frontend router itself. So, the request can be directly
        // referenced as java objects without any need for deserialization.
        getRequest = (GetRequest) ((LocalChannelRequest) request).getRequestInfo().getRequest();
    } else {
        getRequest = GetRequest.readFrom(new DataInputStream(request.getInputStream()), clusterMap);
    }
    Histogram responseQueueTime = null;
    Histogram responseSendTime = null;
    Histogram responseTotalTime = null;
    long requestQueueTime = SystemTime.getInstance().milliseconds() - request.getStartTimeInMs();
    long totalTimeSpent = requestQueueTime;
    boolean isReplicaRequest = getRequest.getClientId().startsWith(GetRequest.Replication_Client_Id_Prefix);
    if (getRequest.getMessageFormatFlag() == MessageFormatFlags.Blob) {
        metrics.getBlobRequestQueueTimeInMs.update(requestQueueTime);
        metrics.getBlobRequestRate.mark();
        responseQueueTime = metrics.getBlobResponseQueueTimeInMs;
        responseSendTime = metrics.getBlobSendTimeInMs;
        responseTotalTime = metrics.getBlobTotalTimeInMs;
    } else if (getRequest.getMessageFormatFlag() == MessageFormatFlags.BlobProperties) {
        metrics.getBlobPropertiesRequestQueueTimeInMs.update(requestQueueTime);
        metrics.getBlobPropertiesRequestRate.mark();
        responseQueueTime = metrics.getBlobPropertiesResponseQueueTimeInMs;
        responseSendTime = metrics.getBlobPropertiesSendTimeInMs;
        responseTotalTime = metrics.getBlobPropertiesTotalTimeInMs;
    } else if (getRequest.getMessageFormatFlag() == MessageFormatFlags.BlobUserMetadata) {
        metrics.getBlobUserMetadataRequestQueueTimeInMs.update(requestQueueTime);
        metrics.getBlobUserMetadataRequestRate.mark();
        responseQueueTime = metrics.getBlobUserMetadataResponseQueueTimeInMs;
        responseSendTime = metrics.getBlobUserMetadataSendTimeInMs;
        responseTotalTime = metrics.getBlobUserMetadataTotalTimeInMs;
    } else if (getRequest.getMessageFormatFlag() == MessageFormatFlags.BlobInfo) {
        metrics.getBlobInfoRequestQueueTimeInMs.update(requestQueueTime);
        metrics.getBlobInfoRequestRate.mark();
        responseQueueTime = metrics.getBlobInfoResponseQueueTimeInMs;
        responseSendTime = metrics.getBlobInfoSendTimeInMs;
        responseTotalTime = metrics.getBlobInfoTotalTimeInMs;
    } else if (getRequest.getMessageFormatFlag() == MessageFormatFlags.All) {
        if (isReplicaRequest) {
            metrics.getBlobAllByReplicaRequestQueueTimeInMs.update(requestQueueTime);
            metrics.getBlobAllByReplicaRequestRate.mark();
            responseQueueTime = metrics.getBlobAllByReplicaResponseQueueTimeInMs;
            responseSendTime = metrics.getBlobAllByReplicaSendTimeInMs;
            responseTotalTime = metrics.getBlobAllByReplicaTotalTimeInMs;
        } else {
            metrics.getBlobAllRequestQueueTimeInMs.update(requestQueueTime);
            metrics.getBlobAllRequestRate.mark();
            responseQueueTime = metrics.getBlobAllResponseQueueTimeInMs;
            responseSendTime = metrics.getBlobAllSendTimeInMs;
            responseTotalTime = metrics.getBlobAllTotalTimeInMs;
        }
    }
    long startTime = SystemTime.getInstance().milliseconds();
    GetResponse response = null;
    try {
        List<Send> messagesToSendList = new ArrayList<>(getRequest.getPartitionInfoList().size());
        List<PartitionResponseInfo> partitionResponseInfoList = new ArrayList<>(getRequest.getPartitionInfoList().size());
        for (PartitionRequestInfo partitionRequestInfo : getRequest.getPartitionInfoList()) {
            ServerErrorCode error = validateRequest(partitionRequestInfo.getPartition(), RequestOrResponseType.GetRequest, false);
            if (error != ServerErrorCode.No_Error) {
                logger.error("Validating get request failed for partition {} with error {}", partitionRequestInfo.getPartition(), error);
                PartitionResponseInfo partitionResponseInfo = new PartitionResponseInfo(partitionRequestInfo.getPartition(), error);
                partitionResponseInfoList.add(partitionResponseInfo);
            } else {
                try {
                    Store storeToGet = storeManager.getStore(partitionRequestInfo.getPartition());
                    EnumSet<StoreGetOptions> storeGetOptions = EnumSet.noneOf(StoreGetOptions.class);
                    // Currently only one option is supported.
                    if (getRequest.getGetOption() == GetOption.Include_Expired_Blobs) {
                        storeGetOptions = EnumSet.of(StoreGetOptions.Store_Include_Expired);
                    }
                    if (getRequest.getGetOption() == GetOption.Include_Deleted_Blobs) {
                        storeGetOptions = EnumSet.of(StoreGetOptions.Store_Include_Deleted);
                    }
                    if (getRequest.getGetOption() == GetOption.Include_All) {
                        storeGetOptions = EnumSet.of(StoreGetOptions.Store_Include_Deleted, StoreGetOptions.Store_Include_Expired);
                    }
                    List<StoreKey> convertedStoreKeys = getConvertedStoreKeys(partitionRequestInfo.getBlobIds());
                    List<StoreKey> dedupedStoreKeys = convertedStoreKeys.size() > 1 ? convertedStoreKeys.stream().distinct().collect(Collectors.toList()) : convertedStoreKeys;
                    StoreInfo info = storeToGet.get(dedupedStoreKeys, storeGetOptions);
                    MessageFormatSend blobsToSend = new MessageFormatSend(info.getMessageReadSet(), getRequest.getMessageFormatFlag(), messageFormatMetrics, storeKeyFactory);
                    PartitionResponseInfo partitionResponseInfo = new PartitionResponseInfo(partitionRequestInfo.getPartition(), info.getMessageReadSetInfo(), blobsToSend.getMessageMetadataList());
                    messagesToSendList.add(blobsToSend);
                    partitionResponseInfoList.add(partitionResponseInfo);
                } catch (StoreException e) {
                    boolean logInErrorLevel = false;
                    if (e.getErrorCode() == StoreErrorCodes.ID_Not_Found) {
                        metrics.idNotFoundError.inc();
                    } else if (e.getErrorCode() == StoreErrorCodes.TTL_Expired) {
                        metrics.ttlExpiredError.inc();
                    } else if (e.getErrorCode() == StoreErrorCodes.ID_Deleted) {
                        metrics.idDeletedError.inc();
                    } else if (e.getErrorCode() == StoreErrorCodes.Authorization_Failure) {
                        metrics.getAuthorizationFailure.inc();
                    } else {
                        metrics.unExpectedStoreGetError.inc();
                        logInErrorLevel = true;
                    }
                    if (logInErrorLevel) {
                        logger.error("Store exception on a get with error code {} for partition {}", e.getErrorCode(), partitionRequestInfo.getPartition(), e);
                    } else {
                        logger.trace("Store exception on a get with error code {} for partition {}", e.getErrorCode(), partitionRequestInfo.getPartition(), e);
                    }
                    PartitionResponseInfo partitionResponseInfo = new PartitionResponseInfo(partitionRequestInfo.getPartition(), ErrorMapping.getStoreErrorMapping(e.getErrorCode()));
                    partitionResponseInfoList.add(partitionResponseInfo);
                } catch (MessageFormatException e) {
                    logger.error("Message format exception on a get with error code {} for partitionRequestInfo {}", e.getErrorCode(), partitionRequestInfo, e);
                    if (e.getErrorCode() == MessageFormatErrorCodes.Data_Corrupt) {
                        metrics.dataCorruptError.inc();
                    } else if (e.getErrorCode() == MessageFormatErrorCodes.Unknown_Format_Version) {
                        metrics.unknownFormatError.inc();
                    }
                    PartitionResponseInfo partitionResponseInfo = new PartitionResponseInfo(partitionRequestInfo.getPartition(), ErrorMapping.getMessageFormatErrorMapping(e.getErrorCode()));
                    partitionResponseInfoList.add(partitionResponseInfo);
                }
            }
        }
        CompositeSend compositeSend = new CompositeSend(messagesToSendList);
        response = new GetResponse(getRequest.getCorrelationId(), getRequest.getClientId(), partitionResponseInfoList, compositeSend, ServerErrorCode.No_Error);
    } catch (Exception e) {
        logger.error("Unknown exception for request {}", getRequest, e);
        response = new GetResponse(getRequest.getCorrelationId(), getRequest.getClientId(), ServerErrorCode.Unknown_Error);
    } finally {
        long processingTime = SystemTime.getInstance().milliseconds() - startTime;
        totalTimeSpent += processingTime;
        publicAccessLogger.info("{} {} processingTime {}", getRequest, response, processingTime);
        long responseSize = response != null ? response.sizeInBytes() : 0;
        if (getRequest.getMessageFormatFlag() == MessageFormatFlags.Blob) {
            metrics.getBlobProcessingTimeInMs.update(processingTime);
            metrics.updateGetBlobProcessingTimeBySize(responseSize, processingTime);
        } else if (getRequest.getMessageFormatFlag() == MessageFormatFlags.BlobProperties) {
            metrics.getBlobPropertiesProcessingTimeInMs.update(processingTime);
        } else if (getRequest.getMessageFormatFlag() == MessageFormatFlags.BlobUserMetadata) {
            metrics.getBlobUserMetadataProcessingTimeInMs.update(processingTime);
        } else if (getRequest.getMessageFormatFlag() == MessageFormatFlags.BlobInfo) {
            metrics.getBlobInfoProcessingTimeInMs.update(processingTime);
        } else if (getRequest.getMessageFormatFlag() == MessageFormatFlags.All) {
            if (isReplicaRequest) {
                metrics.getBlobAllByReplicaProcessingTimeInMs.update(processingTime);
                // client id now has dc name at the end, for example: ClientId=replication-fetch-abc.example.com[dc1]
                String[] clientStrs = getRequest.getClientId().split("\\[");
                if (clientStrs.length > 1) {
                    String clientDc = clientStrs[1].substring(0, clientStrs[1].length() - 1);
                    if (!currentNode.getDatacenterName().equals(clientDc)) {
                        metrics.updateCrossColoFetchBytesRate(clientDc, responseSize);
                    }
                }
            } else {
                metrics.getBlobAllProcessingTimeInMs.update(processingTime);
                metrics.updateGetBlobProcessingTimeBySize(responseSize, processingTime);
            }
        }
    }
    sendGetResponse(requestResponseChannel, response, request, responseQueueTime, responseSendTime, responseTotalTime, totalTimeSpent, response.sizeInBytes(), getRequest.getMessageFormatFlag(), metrics);
}

Example 3 with Send

use of com.github.ambry.network.Send in project ambry by linkedin.

the class AmbrySendToHttp2AdaptorTest method testServerWrite.

/**
 * Test when write {@link Send} from server to client. There are two cases tested in this method
 * 1. {@link Send} returns a non-null value for {@link Send#content()} method.
 * 2. {@link Send} returns a null value for {@link Send#content()} method.
 * Make sure both cases don't leak memory.
 * @throws Exception
 */
@Test
public void testServerWrite() throws Exception {
    int maxFrameSize = 2001;
    EmbeddedChannel channel = new EmbeddedChannel(new AmbrySendToHttp2Adaptor(true, maxFrameSize));
    int contentSize = 7000;
    byte[] byteArray = new byte[contentSize];
    new Random().nextBytes(byteArray);
    ByteBuf content = PooledByteBufAllocator.DEFAULT.heapBuffer(contentSize).writeBytes(byteArray);
    // Retain the ByteBuf for data comparison
    content.retain();
    Send send = new MockSend(content);
    channel.writeOutbound(send);
    DefaultHttp2HeadersFrame header = channel.readOutbound();
    Assert.assertNotNull(header.headers());
    Assert.assertEquals(header.headers().status().toString(), "200");
    byte[] resultArray = new byte[contentSize];
    int i;
    for (i = 0; i < contentSize / maxFrameSize; i++) {
        DefaultHttp2DataFrame data = channel.readOutbound();
        data.content().readBytes(resultArray, i * maxFrameSize, maxFrameSize);
        data.content().release();
    }
    // The last frame
    DefaultHttp2DataFrame data = channel.readOutbound();
    data.content().readBytes(resultArray, i * maxFrameSize, data.content().readableBytes());
    data.content().release();
    Assert.assertArrayEquals(byteArray, resultArray);
    content.release();
}

Example 4 with Send

use of com.github.ambry.network.Send in project ambry by linkedin.

the class AmbrySendToHttp2Adaptor method write.

/**
 * Handles conversion of {@link Send} to HTTP/2 frames.
 */
@Override
public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) {
    if (!ctx.channel().isOpen()) {
        logger.debug("Channel closed when write. Channel: {}", ctx.channel());
        promise.setFailure(new ChannelException("Channel has been closed when write."));
    }
    if (!(msg instanceof Send)) {
        ctx.write(msg, promise);
        return;
    }
    Send send = (Send) msg;
    Http2Headers http2Headers;
    if (forServer) {
        logger.trace("Write content to channel as server {}", ctx.channel());
        http2Headers = new DefaultHttp2Headers().status(HttpResponseStatus.OK.codeAsText());
    } else {
        logger.trace("Write content to channel as client {}", ctx.channel());
        http2Headers = new DefaultHttp2Headers().method(HttpMethod.POST.asciiName()).scheme("https").path("/");
    }
    DefaultHttp2HeadersFrame headersFrame = new DefaultHttp2HeadersFrame(http2Headers, false);
    ctx.write(headersFrame);
    // Referencing counting for derived {@link ByteBuf}: https://netty.io/wiki/reference-counted-objects.html#derived-buffers
    try {
        while (send.content().isReadable(maxFrameSize)) {
            ByteBuf slice = send.content().readSlice(maxFrameSize);
            slice.retain();
            DefaultHttp2DataFrame dataFrame = new DefaultHttp2DataFrame(slice, false);
            ctx.write(dataFrame);
        }
        // The last slice
        ByteBuf slice = send.content().readSlice(send.content().readableBytes());
        slice.retain();
        DefaultHttp2DataFrame dataFrame = new DefaultHttp2DataFrame(slice, true);
        ctx.write(dataFrame, promise);
    } catch (Exception e) {
        logger.error("Error while processing frames. Channel: {}", ctx.channel(), e);
    } finally {
        send.content().release();
    }
}

Example 5 with Send

use of com.github.ambry.network.Send in project ambry by linkedin.

the class StoredBlob method send.

/**
 * Take in a request in the form of {@link Send} and return a response in the form of a
 * {@link BoundedNettyByteBufReceive}.
 * @param send the request.
 * @return the response.
 * @throws IOException if there was an error in interpreting the request.
 */
public BoundedNettyByteBufReceive send(Send send) throws IOException {
    if (!shouldRespond) {
        return null;
    }
    ServerErrorCode serverError = hardError != null ? hardError : serverErrors.size() > 0 ? serverErrors.poll() : ServerErrorCode.No_Error;
    RequestOrResponseType type = ((RequestOrResponse) send).getRequestType();
    RequestOrResponse response;
    requestCounts.computeIfAbsent(type, k -> new LongAdder()).increment();
    switch(type) {
        case PutRequest:
            response = makePutResponse((PutRequest) send, serverError);
            break;
        case GetRequest:
            response = makeGetResponse((GetRequest) send, serverError);
            break;
        case DeleteRequest:
            response = makeDeleteResponse((DeleteRequest) send, serverError);
            break;
        case TtlUpdateRequest:
            response = makeTtlUpdateResponse((TtlUpdateRequest) send, serverError);
            break;
        case UndeleteRequest:
            response = makeUndeleteResponse((UndeleteRequest) send, serverError);
            break;
        default:
            throw new IOException("Unknown request type received");
    }
    ByteBufferChannel channel = new ByteBufferChannel(ByteBuffer.allocate((int) response.sizeInBytes()));
    response.writeTo(channel);
    response.release();
    ByteBuffer payload = channel.getBuffer();
    payload.flip();
    BoundedNettyByteBufReceive receive = new BoundedNettyByteBufReceive(100 * 1024 * 1024);
    receive.readFrom(Channels.newChannel(new ByteBufferInputStream(payload)));
    return receive;
}