zhangyue19921010 commented on code in PR #5416: URL: https://github.com/apache/hudi/pull/5416#discussion_r989702909
########## hudi-common/src/main/java/org/apache/hudi/common/util/queue/DisruptorExecutor.java: ########## @@ -0,0 +1,168 @@ +/* + * 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.hudi.common.util.queue; + +import com.lmax.disruptor.dsl.Disruptor; +import org.apache.hudi.common.util.CustomizedThreadFactory; +import org.apache.hudi.common.util.Functions; +import org.apache.hudi.common.util.Option; +import org.apache.hudi.exception.HoodieException; + +import org.apache.log4j.LogManager; +import org.apache.log4j.Logger; + +import java.util.Collections; +import java.util.Iterator; +import java.util.List; +import java.util.concurrent.ExecutionException; +import java.util.concurrent.ExecutorCompletionService; +import java.util.concurrent.ExecutorService; +import java.util.concurrent.Executors; +import java.util.function.Function; +import java.util.stream.Collectors; + +public class DisruptorExecutor<I, O, E> extends HoodieExecutor<I, O, E> { + + private static final Logger LOG = LogManager.getLogger(DisruptorExecutor.class); + + // Executor service used for launching write thread. + private final ExecutorService producerExecutorService; + // Executor service used for launching read thread. + private final ExecutorService consumerExecutorService; + // Used for buffering records which is controlled by HoodieWriteConfig#WRITE_BUFFER_LIMIT_BYTES. + private final DisruptorMessageQueue<I, O> queue; + // Producers + private final List<DisruptorBasedProducer<I>> producers; + // Consumer + private final Option<BoundedInMemoryQueueConsumer<O, E>> consumer; + // pre-execute function to implement environment specific behavior before executors (producers/consumer) run + private final Runnable preExecuteRunnable; + + public DisruptorExecutor(final int bufferSize, final Iterator<I> inputItr, + BoundedInMemoryQueueConsumer<O, E> consumer, Function<I, O> transformFunction, String waitStrategy, Runnable preExecuteRunnable) { + this(bufferSize, new IteratorBasedDisruptorProducer<>(inputItr), Option.of(consumer), transformFunction, waitStrategy, preExecuteRunnable); + } + + public DisruptorExecutor(final int bufferSize, DisruptorBasedProducer<I> producer, + Option<BoundedInMemoryQueueConsumer<O, E>> consumer, final Function<I, O> transformFunction) { + this(bufferSize, producer, consumer, transformFunction, WaitStrategyFactory.DEFAULT_STRATEGY, Functions.noop()); + } + + public DisruptorExecutor(final int bufferSize, DisruptorBasedProducer<I> producer, + Option<BoundedInMemoryQueueConsumer<O, E>> consumer, final Function<I, O> transformFunction, String waitStrategy, Runnable preExecuteRunnable) { + this(bufferSize, Collections.singletonList(producer), consumer, transformFunction, waitStrategy, preExecuteRunnable); + } + + public DisruptorExecutor(final int bufferSize, List<DisruptorBasedProducer<I>> producers, + Option<BoundedInMemoryQueueConsumer<O, E>> consumer, final Function<I, O> transformFunction, + final String waitStrategy, Runnable preExecuteRunnable) { + this.producers = producers; + this.consumer = consumer; + this.preExecuteRunnable = preExecuteRunnable; + // Ensure fixed thread for each producer thread + this.producerExecutorService = Executors.newFixedThreadPool(producers.size(), new CustomizedThreadFactory("producer")); + // Ensure single thread for consumer + this.consumerExecutorService = Executors.newSingleThreadExecutor(new CustomizedThreadFactory("consumer")); + this.queue = new DisruptorMessageQueue<>(bufferSize, transformFunction, waitStrategy, producers.size(), preExecuteRunnable); + } + + /** + * Start all Producers. + */ + public ExecutorCompletionService<Boolean> startProducers() { + final ExecutorCompletionService<Boolean> completionService = + new ExecutorCompletionService<Boolean>(producerExecutorService); + producers.stream().map(producer -> { + return completionService.submit(() -> { + try { + preExecuteRunnable.run(); + + DisruptorPublisher publisher = new DisruptorPublisher<>(producer, queue); + publisher.startProduce(); + + } catch (Throwable e) { + LOG.error("error producing records", e); + throw e; + } + return true; + }); + }).collect(Collectors.toList()); + return completionService; + } + + @Override + public E execute() { + try { + assert consumer.isPresent(); + setupConsumer(); + ExecutorCompletionService<Boolean> pool = startProducers(); + + waitForProducersFinished(pool); + queue.getInnerQueue().shutdown(); + consumer.get().finish(); + + return consumer.get().getResult(); + } catch (InterruptedException ie) { + shutdownNow(); + Thread.currentThread().interrupt(); + throw new HoodieException(ie); + } catch (Exception e) { + throw new HoodieException(e); + } + } + + private void waitForProducersFinished(ExecutorCompletionService<Boolean> pool) throws InterruptedException, ExecutionException { + for (int i = 0; i < producers.size(); i++) { + pool.take().get(); + } + } + + /** + * Start only consumer. + */ + private void setupConsumer() { + DisruptorMessageHandler<O, E> handler = new DisruptorMessageHandler<>(consumer.get()); + + Disruptor<HoodieDisruptorEvent<O>> innerQueue = queue.getInnerQueue(); + innerQueue.handleEventsWith(handler); + innerQueue.start(); + } + + @Override + public boolean isRemaining() { + return !queue.isEmpty(); + } + + @Override + public void shutdownNow() { + producerExecutorService.shutdownNow(); + consumerExecutorService.shutdownNow(); + queue.close(); + } + + @Override + public DisruptorMessageQueue<I, O> getQueue() { + return queue; + } + + @Override + public boolean awaitTermination() { Review Comment: > Please check my comment above: both BoundedInMemory and Disruptor Executors could share these sequences (for managing lifecycles of executor services) changed! > also, why return true directly. should we check for producerExecutorService termination and consumerExecutorService termination. similar logic as followed in BoundedInMemoryExecutor Since we now have `HoodieExecutorBase` it holds common elements producerExecutorService, consumerExecutorService, producers and consumer and share the same logic for executor awaitTermination. ########## hudi-common/src/main/java/org/apache/hudi/common/util/queue/DisruptorExecutor.java: ########## @@ -0,0 +1,168 @@ +/* + * 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.hudi.common.util.queue; + +import com.lmax.disruptor.dsl.Disruptor; +import org.apache.hudi.common.util.CustomizedThreadFactory; +import org.apache.hudi.common.util.Functions; +import org.apache.hudi.common.util.Option; +import org.apache.hudi.exception.HoodieException; + +import org.apache.log4j.LogManager; +import org.apache.log4j.Logger; + +import java.util.Collections; +import java.util.Iterator; +import java.util.List; +import java.util.concurrent.ExecutionException; +import java.util.concurrent.ExecutorCompletionService; +import java.util.concurrent.ExecutorService; +import java.util.concurrent.Executors; +import java.util.function.Function; +import java.util.stream.Collectors; + +public class DisruptorExecutor<I, O, E> extends HoodieExecutor<I, O, E> { + + private static final Logger LOG = LogManager.getLogger(DisruptorExecutor.class); + + // Executor service used for launching write thread. + private final ExecutorService producerExecutorService; + // Executor service used for launching read thread. + private final ExecutorService consumerExecutorService; + // Used for buffering records which is controlled by HoodieWriteConfig#WRITE_BUFFER_LIMIT_BYTES. + private final DisruptorMessageQueue<I, O> queue; + // Producers + private final List<DisruptorBasedProducer<I>> producers; + // Consumer + private final Option<BoundedInMemoryQueueConsumer<O, E>> consumer; + // pre-execute function to implement environment specific behavior before executors (producers/consumer) run + private final Runnable preExecuteRunnable; + + public DisruptorExecutor(final int bufferSize, final Iterator<I> inputItr, + BoundedInMemoryQueueConsumer<O, E> consumer, Function<I, O> transformFunction, String waitStrategy, Runnable preExecuteRunnable) { + this(bufferSize, new IteratorBasedDisruptorProducer<>(inputItr), Option.of(consumer), transformFunction, waitStrategy, preExecuteRunnable); + } + + public DisruptorExecutor(final int bufferSize, DisruptorBasedProducer<I> producer, + Option<BoundedInMemoryQueueConsumer<O, E>> consumer, final Function<I, O> transformFunction) { + this(bufferSize, producer, consumer, transformFunction, WaitStrategyFactory.DEFAULT_STRATEGY, Functions.noop()); + } + + public DisruptorExecutor(final int bufferSize, DisruptorBasedProducer<I> producer, + Option<BoundedInMemoryQueueConsumer<O, E>> consumer, final Function<I, O> transformFunction, String waitStrategy, Runnable preExecuteRunnable) { + this(bufferSize, Collections.singletonList(producer), consumer, transformFunction, waitStrategy, preExecuteRunnable); + } + + public DisruptorExecutor(final int bufferSize, List<DisruptorBasedProducer<I>> producers, + Option<BoundedInMemoryQueueConsumer<O, E>> consumer, final Function<I, O> transformFunction, + final String waitStrategy, Runnable preExecuteRunnable) { + this.producers = producers; + this.consumer = consumer; + this.preExecuteRunnable = preExecuteRunnable; + // Ensure fixed thread for each producer thread + this.producerExecutorService = Executors.newFixedThreadPool(producers.size(), new CustomizedThreadFactory("producer")); + // Ensure single thread for consumer + this.consumerExecutorService = Executors.newSingleThreadExecutor(new CustomizedThreadFactory("consumer")); + this.queue = new DisruptorMessageQueue<>(bufferSize, transformFunction, waitStrategy, producers.size(), preExecuteRunnable); + } + + /** + * Start all Producers. + */ + public ExecutorCompletionService<Boolean> startProducers() { + final ExecutorCompletionService<Boolean> completionService = + new ExecutorCompletionService<Boolean>(producerExecutorService); + producers.stream().map(producer -> { + return completionService.submit(() -> { + try { + preExecuteRunnable.run(); + + DisruptorPublisher publisher = new DisruptorPublisher<>(producer, queue); + publisher.startProduce(); + + } catch (Throwable e) { + LOG.error("error producing records", e); + throw e; + } + return true; + }); + }).collect(Collectors.toList()); + return completionService; + } + + @Override + public E execute() { + try { + assert consumer.isPresent(); Review Comment: changed. -- This is an automated message from the Apache Git Service. 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