Pengzna commented on code in PR #12355: URL: https://github.com/apache/iotdb/pull/12355#discussion_r1618142680
########## iotdb-core/datanode/src/main/java/org/apache/iotdb/db/pipe/connector/protocol/pipeconsensus/PipeConsensusAsyncConnector.java: ########## @@ -0,0 +1,585 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.iotdb.db.pipe.connector.protocol.pipeconsensus; + +import org.apache.iotdb.common.rpc.thrift.TConsensusGroupId; +import org.apache.iotdb.common.rpc.thrift.TConsensusGroupType; +import org.apache.iotdb.common.rpc.thrift.TEndPoint; +import org.apache.iotdb.commons.client.IClientManager; +import org.apache.iotdb.commons.conf.CommonConfig; +import org.apache.iotdb.commons.conf.CommonDescriptor; +import org.apache.iotdb.commons.consensus.index.ProgressIndex; +import org.apache.iotdb.commons.pipe.config.constant.PipeConnectorConstant; +import org.apache.iotdb.commons.pipe.connector.protocol.IoTDBConnector; +import org.apache.iotdb.commons.pipe.event.EnrichedEvent; +import org.apache.iotdb.consensus.pipe.PipeConsensus; +import org.apache.iotdb.consensus.pipe.client.AsyncPipeConsensusServiceClient; +import org.apache.iotdb.consensus.pipe.thrift.TCommitId; +import org.apache.iotdb.consensus.pipe.thrift.TPipeConsensusTransferReq; +import org.apache.iotdb.db.conf.IoTDBDescriptor; +import org.apache.iotdb.db.consensus.DataRegionConsensusImpl; +import org.apache.iotdb.db.pipe.connector.protocol.pipeconsensus.handler.PipeConsensusTabletBatchEventHandler; +import org.apache.iotdb.db.pipe.connector.protocol.pipeconsensus.handler.PipeConsensusTabletInsertNodeEventHandler; +import org.apache.iotdb.db.pipe.connector.protocol.pipeconsensus.handler.PipeConsensusTabletRawEventHandler; +import org.apache.iotdb.db.pipe.connector.protocol.pipeconsensus.handler.PipeConsensusTsFileInsertionEventHandler; +import org.apache.iotdb.db.pipe.connector.protocol.pipeconsensus.payload.builder.PipeConsensusAsyncBatchReqBuilder; +import org.apache.iotdb.db.pipe.connector.protocol.pipeconsensus.payload.request.PipeConsensusTabletBinaryReq; +import org.apache.iotdb.db.pipe.connector.protocol.pipeconsensus.payload.request.PipeConsensusTabletInsertNodeReq; +import org.apache.iotdb.db.pipe.connector.protocol.pipeconsensus.payload.request.PipeConsensusTabletRawReq; +import org.apache.iotdb.db.pipe.event.common.heartbeat.PipeHeartbeatEvent; +import org.apache.iotdb.db.pipe.event.common.tablet.PipeInsertNodeTabletInsertionEvent; +import org.apache.iotdb.db.pipe.event.common.tablet.PipeRawTabletInsertionEvent; +import org.apache.iotdb.db.pipe.event.common.tsfile.PipeTsFileInsertionEvent; +import org.apache.iotdb.db.queryengine.plan.planner.plan.node.write.InsertNode; +import org.apache.iotdb.pipe.api.customizer.configuration.PipeConnectorRuntimeConfiguration; +import org.apache.iotdb.pipe.api.customizer.parameter.PipeParameters; +import org.apache.iotdb.pipe.api.event.Event; +import org.apache.iotdb.pipe.api.event.dml.insertion.TabletInsertionEvent; +import org.apache.iotdb.pipe.api.event.dml.insertion.TsFileInsertionEvent; +import org.apache.iotdb.pipe.api.exception.PipeException; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.io.FileNotFoundException; +import java.io.IOException; +import java.util.Iterator; +import java.util.Objects; +import java.util.concurrent.BlockingQueue; +import java.util.concurrent.LinkedBlockingDeque; +import java.util.concurrent.LinkedBlockingQueue; +import java.util.concurrent.TimeUnit; +import java.util.concurrent.atomic.AtomicBoolean; +import java.util.concurrent.atomic.AtomicInteger; + +// TODO: Optimize the network and disk io for TsFile onComplete +// TODO: support Tablet Batch +public class PipeConsensusAsyncConnector extends IoTDBConnector { + + private static final Logger LOGGER = LoggerFactory.getLogger(PipeConsensusAsyncConnector.class); + + private static final String CUSTOMIZE_EXCEPTION_MSG = + "Failed to customize pipeConsensusAsyncConnector because there isn't consensusGroupId passed by. Please check your construct parameters!"; + + private static final String ENQUEUE_EXCEPTION_MSG = + "Timeout: PipeConsensusConnector offers an event into transferBuffer failed, because transferBuffer is full"; + + private static final String THRIFT_ERROR_FORMATTER_WITHOUT_ENDPOINT = + "Failed to borrow client from client pool or exception occurred " + + "when sending to receiver."; + + private static final String THRIFT_ERROR_FORMATTER_WITH_ENDPOINT = + "Failed to borrow client from client pool or exception occurred " + + "when sending to receiver %s:%s."; + + private static final CommonConfig COMMON_CONFIG = CommonDescriptor.getInstance().getConfig(); + + private final BlockingQueue<Event> retryEventQueue = new LinkedBlockingQueue<>(); + + private final BlockingQueue<Event> transferBuffer = + new LinkedBlockingDeque<>(COMMON_CONFIG.getPipeConsensusEventBufferSize()); + + private final AtomicBoolean isClosed = new AtomicBoolean(false); + + private final AtomicInteger alreadySentEventsInTransferBuffer = new AtomicInteger(0); + + private final int thisDataNodeId = IoTDBDescriptor.getInstance().getConfig().getDataNodeId(); + + private String consensusGroupId; + + private PipeConsensusSyncConnector retryConnector; + + private IClientManager<TEndPoint, AsyncPipeConsensusServiceClient> asyncTransferClientManager; + + private PipeConsensusAsyncBatchReqBuilder tabletBatchBuilder; + + @Override + public void customize(PipeParameters parameters, PipeConnectorRuntimeConfiguration configuration) + throws Exception { + super.customize(parameters, configuration); + + // Get consensusGroupId from parameters passed by PipeConsensusImpl + consensusGroupId = + parameters.getStringOrDefault(PipeConnectorConstant.CONNECTOR_CONSENSUS_GROUP_ID_KEY, null); + if (Objects.isNull(consensusGroupId)) { + throw new PipeException(CUSTOMIZE_EXCEPTION_MSG); + } + + // In PipeConsensus, one pipeConsensusTask corresponds to a pipeConsensusConnector. Thus, + // `nodeUrls` here actually is a singletonList that contains one peer's TEndPoint. But here we + // retain the implementation of list to cope with possible future expansion + retryConnector = new PipeConsensusSyncConnector(nodeUrls, consensusGroupId, thisDataNodeId); + retryConnector.customize(parameters, configuration); + asyncTransferClientManager = + ((PipeConsensus) DataRegionConsensusImpl.getInstance()).getAsyncClientManager(); + + if (isTabletBatchModeEnabled) { + tabletBatchBuilder = + new PipeConsensusAsyncBatchReqBuilder( + parameters, + new TConsensusGroupId( + TConsensusGroupType.DataRegion, Integer.parseInt(consensusGroupId)), + thisDataNodeId); + } + + // currently, tablet batch is false by default in PipeConsensus; + isTabletBatchModeEnabled = false; Review Comment: currently don't need. but in further version we will use that -- This is an automated message from the Apache Git Service. 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