Volodymyr Babak
2 years ago
committed by
GitHub
GitHub
43 changed files with 948 additions and 928 deletions
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/** |
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* Copyright © 2016-2024 The Thingsboard Authors |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package org.thingsboard.server.service.queue.consumer; |
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import lombok.Builder; |
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import lombok.Getter; |
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import lombok.extern.slf4j.Slf4j; |
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import org.thingsboard.common.util.ThingsBoardThreadFactory; |
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import org.thingsboard.server.common.data.queue.QueueConfig; |
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import org.thingsboard.server.common.msg.queue.TopicPartitionInfo; |
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import org.thingsboard.server.queue.TbQueueConsumer; |
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import org.thingsboard.server.queue.TbQueueMsg; |
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import org.thingsboard.server.queue.discovery.QueueKey; |
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import org.thingsboard.server.service.queue.ruleengine.QueueEvent; |
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import org.thingsboard.server.service.queue.ruleengine.TbQueueConsumerManagerTask; |
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import org.thingsboard.server.service.queue.ruleengine.TbQueueConsumerTask; |
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import java.util.Collection; |
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import java.util.Collections; |
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import java.util.HashMap; |
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import java.util.HashSet; |
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import java.util.List; |
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import java.util.Map; |
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import java.util.Set; |
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import java.util.concurrent.ConcurrentLinkedQueue; |
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import java.util.concurrent.ExecutorService; |
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import java.util.concurrent.Future; |
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import java.util.concurrent.ScheduledExecutorService; |
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import java.util.concurrent.TimeUnit; |
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import java.util.concurrent.locks.ReentrantLock; |
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import java.util.function.Function; |
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import java.util.stream.Collectors; |
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@Slf4j |
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public class MainQueueConsumerManager<M extends TbQueueMsg, C extends QueueConfig> { |
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protected final QueueKey queueKey; |
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@Getter |
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protected C config; |
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protected final MsgPackProcessor<M, C> msgPackProcessor; |
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protected final Function<C, TbQueueConsumer<M>> consumerCreator; |
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protected final ExecutorService consumerExecutor; |
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protected final ScheduledExecutorService scheduler; |
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protected final ExecutorService taskExecutor; |
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private final java.util.Queue<TbQueueConsumerManagerTask> tasks = new ConcurrentLinkedQueue<>(); |
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private final ReentrantLock lock = new ReentrantLock(); |
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@Getter |
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private volatile Set<TopicPartitionInfo> partitions; |
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protected volatile ConsumerWrapper<M> consumerWrapper; |
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protected volatile boolean stopped; |
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@Builder |
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public MainQueueConsumerManager(QueueKey queueKey, C config, |
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MsgPackProcessor<M, C> msgPackProcessor, |
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Function<C, TbQueueConsumer<M>> consumerCreator, |
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ExecutorService consumerExecutor, |
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ScheduledExecutorService scheduler, |
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ExecutorService taskExecutor) { |
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this.queueKey = queueKey; |
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this.config = config; |
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this.msgPackProcessor = msgPackProcessor; |
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this.consumerCreator = consumerCreator; |
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this.consumerExecutor = consumerExecutor; |
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this.scheduler = scheduler; |
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this.taskExecutor = taskExecutor; |
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if (config != null) { |
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init(config); |
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} |
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} |
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public void init(C config) { |
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this.config = config; |
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if (config.isConsumerPerPartition()) { |
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this.consumerWrapper = new ConsumerPerPartitionWrapper(); |
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} else { |
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this.consumerWrapper = new SingleConsumerWrapper(); |
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} |
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log.debug("[{}] Initialized consumer for queue: {}", queueKey, config); |
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} |
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public void update(C config) { |
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addTask(TbQueueConsumerManagerTask.configUpdate(config)); |
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} |
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public void update(Set<TopicPartitionInfo> partitions) { |
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addTask(TbQueueConsumerManagerTask.partitionChange(partitions)); |
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} |
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protected void addTask(TbQueueConsumerManagerTask todo) { |
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if (stopped) { |
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return; |
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} |
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tasks.add(todo); |
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log.trace("[{}] Added task: {}", queueKey, todo); |
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tryProcessTasks(); |
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} |
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private void tryProcessTasks() { |
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taskExecutor.submit(() -> { |
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if (lock.tryLock()) { |
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try { |
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C newConfig = null; |
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Set<TopicPartitionInfo> newPartitions = null; |
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while (!stopped) { |
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TbQueueConsumerManagerTask task = tasks.poll(); |
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if (task == null) { |
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break; |
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} |
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log.trace("[{}] Processing task: {}", queueKey, task); |
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if (task.getEvent() == QueueEvent.PARTITION_CHANGE) { |
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newPartitions = task.getPartitions(); |
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} else if (task.getEvent() == QueueEvent.CONFIG_UPDATE) { |
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newConfig = (C) task.getConfig(); |
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} else { |
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processTask(task); |
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} |
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} |
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if (stopped) { |
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return; |
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} |
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if (newConfig != null) { |
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doUpdate(newConfig); |
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} |
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if (newPartitions != null) { |
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doUpdate(newPartitions); |
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} |
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} catch (Exception e) { |
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log.error("[{}] Failed to process tasks", queueKey, e); |
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} finally { |
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lock.unlock(); |
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} |
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} else { |
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log.trace("[{}] Failed to acquire lock", queueKey); |
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scheduler.schedule(this::tryProcessTasks, 1, TimeUnit.SECONDS); |
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} |
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}); |
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} |
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protected void processTask(TbQueueConsumerManagerTask task) { |
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} |
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private void doUpdate(C newConfig) { |
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log.info("[{}] Processing queue update: {}", queueKey, newConfig); |
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var oldConfig = this.config; |
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this.config = newConfig; |
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if (log.isTraceEnabled()) { |
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log.trace("[{}] Old queue configuration: {}", queueKey, oldConfig); |
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log.trace("[{}] New queue configuration: {}", queueKey, newConfig); |
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} |
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if (oldConfig == null) { |
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init(config); |
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} else if (newConfig.isConsumerPerPartition() != oldConfig.isConsumerPerPartition()) { |
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consumerWrapper.getConsumers().forEach(TbQueueConsumerTask::initiateStop); |
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consumerWrapper.getConsumers().forEach(TbQueueConsumerTask::awaitCompletion); |
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init(config); |
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if (partitions != null) { |
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doUpdate(partitions); // even if partitions number was changed, there can be no partition change event
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} |
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} else { |
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log.trace("[{}] Silently applied new config, because consumer-per-partition not changed", queueKey); |
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// do nothing, because partitions change (if they changed) will be handled on PartitionChangeEvent,
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// and changes to other config values will be picked up by consumer on the fly,
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// and queue topic and name are immutable
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} |
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} |
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private void doUpdate(Set<TopicPartitionInfo> partitions) { |
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this.partitions = partitions; |
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consumerWrapper.updatePartitions(partitions); |
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} |
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private void launchConsumer(TbQueueConsumerTask<M> consumerTask) { |
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log.info("[{}] Launching consumer", consumerTask.getKey()); |
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Future<?> consumerLoop = consumerExecutor.submit(() -> { |
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ThingsBoardThreadFactory.updateCurrentThreadName(consumerTask.getKey().toString()); |
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try { |
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consumerLoop(consumerTask.getConsumer()); |
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} catch (Throwable e) { |
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log.error("Failure in consumer loop", e); |
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} |
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log.info("[{}] Consumer stopped", consumerTask.getKey()); |
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}); |
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consumerTask.setTask(consumerLoop); |
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} |
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private void consumerLoop(TbQueueConsumer<M> consumer) { |
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while (!stopped && !consumer.isStopped()) { |
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try { |
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List<M> msgs = consumer.poll(config.getPollInterval()); |
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if (msgs.isEmpty()) { |
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continue; |
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} |
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processMsgs(msgs, consumer, config); |
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} catch (Exception e) { |
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if (!consumer.isStopped()) { |
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log.warn("Failed to process messages from queue", e); |
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try { |
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Thread.sleep(config.getPollInterval()); |
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} catch (InterruptedException e2) { |
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log.trace("Failed to wait until the server has capacity to handle new requests", e2); |
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} |
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} |
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} |
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} |
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if (consumer.isStopped()) { |
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consumer.unsubscribe(); |
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} |
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} |
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protected void processMsgs(List<M> msgs, TbQueueConsumer<M> consumer, C config) throws Exception { |
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msgPackProcessor.process(msgs, consumer, config); |
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} |
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public void stop() { |
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log.debug("[{}] Stopping consumers", queueKey); |
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consumerWrapper.getConsumers().forEach(TbQueueConsumerTask::initiateStop); |
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stopped = true; |
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} |
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public void awaitStop() { |
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log.debug("[{}] Waiting for consumers to stop", queueKey); |
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consumerWrapper.getConsumers().forEach(TbQueueConsumerTask::awaitCompletion); |
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log.debug("[{}] Unsubscribed and stopped consumers", queueKey); |
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} |
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private static String partitionsToString(Collection<TopicPartitionInfo> partitions) { |
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return partitions.stream().map(TopicPartitionInfo::getFullTopicName).collect(Collectors.joining(", ", "[", "]")); |
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} |
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public interface MsgPackProcessor<M extends TbQueueMsg, C extends QueueConfig> { |
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void process(List<M> msgs, TbQueueConsumer<M> consumer, C config) throws Exception; |
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} |
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public interface ConsumerWrapper<M extends TbQueueMsg> { |
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void updatePartitions(Set<TopicPartitionInfo> partitions); |
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Collection<TbQueueConsumerTask<M>> getConsumers(); |
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} |
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class ConsumerPerPartitionWrapper implements ConsumerWrapper<M> { |
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private final Map<TopicPartitionInfo, TbQueueConsumerTask<M>> consumers = new HashMap<>(); |
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@Override |
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public void updatePartitions(Set<TopicPartitionInfo> partitions) { |
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Set<TopicPartitionInfo> addedPartitions = new HashSet<>(partitions); |
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addedPartitions.removeAll(consumers.keySet()); |
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Set<TopicPartitionInfo> removedPartitions = new HashSet<>(consumers.keySet()); |
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removedPartitions.removeAll(partitions); |
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log.info("[{}] Added partitions: {}, removed partitions: {}", queueKey, partitionsToString(addedPartitions), partitionsToString(removedPartitions)); |
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removedPartitions.forEach((tpi) -> consumers.get(tpi).initiateStop()); |
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removedPartitions.forEach((tpi) -> consumers.remove(tpi).awaitCompletion()); |
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addedPartitions.forEach((tpi) -> { |
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String key = queueKey + "-" + tpi.getPartition().orElse(-1); |
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TbQueueConsumerTask<M> consumer = new TbQueueConsumerTask<>(key, consumerCreator.apply(config)); |
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consumers.put(tpi, consumer); |
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consumer.subscribe(Set.of(tpi)); |
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launchConsumer(consumer); |
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}); |
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} |
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@Override |
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public Collection<TbQueueConsumerTask<M>> getConsumers() { |
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return consumers.values(); |
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} |
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} |
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class SingleConsumerWrapper implements ConsumerWrapper<M> { |
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private TbQueueConsumerTask<M> consumer; |
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@Override |
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public void updatePartitions(Set<TopicPartitionInfo> partitions) { |
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log.info("[{}] New partitions: {}", queueKey, partitionsToString(partitions)); |
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if (partitions.isEmpty()) { |
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if (consumer != null && consumer.isRunning()) { |
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consumer.initiateStop(); |
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consumer.awaitCompletion(); |
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} |
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consumer = null; |
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return; |
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} |
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if (consumer == null) { |
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consumer = new TbQueueConsumerTask<>(queueKey, consumerCreator.apply(config)); |
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} |
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consumer.subscribe(partitions); |
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if (!consumer.isRunning()) { |
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launchConsumer(consumer); |
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} |
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} |
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@Override |
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public Collection<TbQueueConsumerTask<M>> getConsumers() { |
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if (consumer == null) { |
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return Collections.emptyList(); |
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} |
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return List.of(consumer); |
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} |
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} |
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} |
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@ -0,0 +1,24 @@ |
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/** |
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* Copyright © 2016-2024 The Thingsboard Authors |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package org.thingsboard.server.common.data.queue; |
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public interface QueueConfig { |
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boolean isConsumerPerPartition(); |
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int getPollInterval(); |
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} |
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