Pengzna commented on code in PR #12355: URL: https://github.com/apache/iotdb/pull/12355#discussion_r1607855881
########## iotdb-core/datanode/src/main/java/org/apache/iotdb/db/pipe/connector/protocol/pipeconsensus/PipeConsensusAsyncConnector.java: ########## @@ -0,0 +1,530 @@ +/* + * 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.TEndPoint; +import org.apache.iotdb.commons.conf.CommonConfig; +import org.apache.iotdb.commons.conf.CommonDescriptor; +import org.apache.iotdb.commons.pipe.connector.protocol.IoTDBConnector; +import org.apache.iotdb.commons.pipe.event.EnrichedEvent; +import org.apache.iotdb.consensus.pipe.client.AsyncPipeConsensusServiceClient; +import org.apache.iotdb.consensus.pipe.client.manager.PipeConsensusAsyncClientManager; +import org.apache.iotdb.consensus.pipe.thrift.TCommitId; +import org.apache.iotdb.consensus.pipe.thrift.TPipeConsensusTransferReq; +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.Comparator; +import java.util.Iterator; +import java.util.Objects; +import java.util.concurrent.BlockingQueue; +import java.util.concurrent.LinkedBlockingDeque; +import java.util.concurrent.PriorityBlockingQueue; +import java.util.concurrent.TimeUnit; +import java.util.concurrent.atomic.AtomicBoolean; +import java.util.concurrent.atomic.AtomicInteger; + +// TODO: 改造 handler，onComplete 的优化 + onComplete 加上出队逻辑 +// TODO: 改造 batch 协议 +// TODO: 改造 tsFile 传送协议 +public class PipeConsensusAsyncConnector extends IoTDBConnector { + + private static final Logger LOGGER = LoggerFactory.getLogger(PipeConsensusAsyncConnector.class); + + 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 PriorityBlockingQueue<Event> retryEventQueue = + new PriorityBlockingQueue<>( + 11, + Comparator.comparing( + e -> + // Non-enriched events will be put at the front of the queue, + // because they are more likely to be lost and need to be retried first. + e instanceof EnrichedEvent ? ((EnrichedEvent) e).getCommitId() : 0)); + + 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 PipeConsensusSyncConnector retryConnector; + + private PipeConsensusAsyncClientManager asyncTransferClientManager; + + private PipeConsensusAsyncBatchReqBuilder tabletBatchBuilder; + + @Override + public void customize(PipeParameters parameters, PipeConnectorRuntimeConfiguration configuration) + throws Exception { + super.customize(parameters, configuration); + + // 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); + retryConnector.customize(parameters, configuration); + asyncTransferClientManager = PipeConsensusAsyncClientManager.getInstance(); + + if (isTabletBatchModeEnabled) { + tabletBatchBuilder = new PipeConsensusAsyncBatchReqBuilder(parameters); + } + + // currently, tablet batch is false by default in PipeConsensus; + isTabletBatchModeEnabled = false; + } + + /** Add an event to transferBuffer, whose events will be asynchronizedly transfer to receiver. */ + private boolean addEvent2Buffer(Event event) { + try { + LOGGER.info( + "Debug only: no.{} event added to connector buffer", + ((EnrichedEvent) event).getCommitId()); + if (LOGGER.isDebugEnabled()) { + LOGGER.debug( + "PipeConsensus connector: one event enqueue, queue size = {}, limit size = {}", + transferBuffer.size(), + COMMON_CONFIG.getPipeConsensusEventBufferSize()); + } + boolean result = + transferBuffer.offer( + event, COMMON_CONFIG.getPipeConsensusEventEnqueueTimeoutInMs(), TimeUnit.SECONDS); Review Comment: good catch! fixed -- This is an automated message from the Apache Git Service. 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