det101 commented on code in PR #17037: URL: https://github.com/apache/dolphinscheduler/pull/17037#discussion_r2034814801
########## dolphinscheduler-master/src/main/java/org/apache/dolphinscheduler/server/master/runner/WorkerGroupTaskDispatcherManager.java: ########## @@ -0,0 +1,174 @@ +/* + * 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.dolphinscheduler.server.master.runner; + +import org.apache.dolphinscheduler.dao.entity.WorkerGroup; +import org.apache.dolphinscheduler.dao.utils.WorkerGroupUtils; +import org.apache.dolphinscheduler.server.master.cluster.WorkerGroupChangeNotifier; +import org.apache.dolphinscheduler.server.master.engine.task.client.ITaskExecutorClient; +import org.apache.dolphinscheduler.server.master.engine.task.runnable.ITaskExecutionRunnable; + +import java.util.Iterator; +import java.util.List; +import java.util.Map; +import java.util.concurrent.ConcurrentHashMap; +import java.util.stream.Collectors; + +import javax.annotation.PostConstruct; + +import lombok.Getter; +import lombok.extern.slf4j.Slf4j; + +import org.springframework.beans.factory.annotation.Autowired; +import org.springframework.stereotype.Component; + +/** + * WorkerGroupTaskDispatcherManager is responsible for managing the task dispatching for worker groups. + * It maintains a mapping of worker groups to their task dispatchers and priority delay queues, + * and supports adding tasks, starting and stopping worker groups, as well as cleaning up resources upon shutdown. + */ +@Component +@Slf4j +public class WorkerGroupTaskDispatcherManager implements AutoCloseable, WorkerGroupChangeNotifier.WorkerGroupListener { + + @Autowired + private ITaskExecutorClient taskExecutorClient; + + @Getter + private final ConcurrentHashMap<String, WorkerGroupTaskDispatcher> dispatchWorkerMap; + + public WorkerGroupTaskDispatcherManager() { + dispatchWorkerMap = new ConcurrentHashMap<>(); + } + + @PostConstruct + public void init() { + this.addWorkerGroup(WorkerGroupUtils.getDefaultWorkerGroup()); + } + + /** + * Adds a task to the specified worker group queue and starts or wakes up the corresponding processing loop. + * + * @param workerGroup the identifier for the worker group, used to distinguish different task queues + * @param taskExecutionRunnable an instance of ITaskExecutionRunnable representing the task to be executed + * @param delayTimeMills the delay time before the task is executed, in milliseconds + */ + public synchronized boolean addTaskToWorkerGroup(String workerGroup, ITaskExecutionRunnable taskExecutionRunnable, + long delayTimeMills) { + WorkerGroupTaskDispatcher workerGroupTaskDispatcher = dispatchWorkerMap.get(workerGroup); + if (workerGroupTaskDispatcher != null) { + if (workerGroupTaskDispatcher.checkCloseDispatchWorkerComplete()) { + dispatchWorkerMap.remove(workerGroup); + return false; + } + return workerGroupTaskDispatcher.addTaskToWorkerGroupQueue(taskExecutionRunnable, delayTimeMills); + } else { + log.error("workerGroupTaskDispatcher {} not found, will set task {} fail", + workerGroup, taskExecutionRunnable.getTaskInstance().getId()); + } + return false; + } + + /** + * Stops a specific worker group's task dispatch waiting queue looper. + * + * @param workerGroup the identifier for the worker group + */ + private synchronized void deleteWorkerGroup(String workerGroup) { + WorkerGroupTaskDispatcher workerGroupTaskDispatcher = dispatchWorkerMap.get(workerGroup); + if (workerGroupTaskDispatcher != null) { + workerGroupTaskDispatcher.markDispatcherClosing(); + } else { + log.warn("workerGroupTaskDispatcher {} not found", workerGroup); + } + } + + /** + * add workerGroup + * + * @param workerGroup the identifier for the worker group + */ + private synchronized void addWorkerGroup(String workerGroup) { + WorkerGroupTaskDispatcher workerGroupTaskDispatcher = dispatchWorkerMap.get(workerGroup); + if (workerGroupTaskDispatcher == null) { + workerGroupTaskDispatcher = new WorkerGroupTaskDispatcher(workerGroup, taskExecutorClient); + dispatchWorkerMap.put(workerGroup, workerGroupTaskDispatcher); + workerGroupTaskDispatcher.start(); + } else { + workerGroupTaskDispatcher.markDispatcherStart(); + } + } + + /** + * Stop all workerGroupTaskDispatchWaitingQueueLooper + */ + @Override + public void close() throws Exception { + log.info("WorkerGroupTaskDispatcherManager start close"); + for (Map.Entry<String, WorkerGroupTaskDispatcher> entry : dispatchWorkerMap.entrySet()) { + try { + entry.getValue().markDispatcherClosing(); + } catch (Exception e) { + log.error("stop worker group error", e); + } + } + log.info("WorkerGroupTaskDispatcherManager closed"); Review Comment: change to ``` entry.getValue().close(); ``` WorkerGroupTaskDispatcher will be left as a TODO. -- This is an automated message from the Apache Git Service. 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