yihua commented on a change in pull request #3233: URL: https://github.com/apache/hudi/pull/3233#discussion_r680716767
########## File path: hudi-timeline-service/src/main/java/org/apache/hudi/timeline/service/handlers/marker/MarkerCreationDispatchingRunnable.java ########## @@ -0,0 +1,79 @@ +/* + * 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.timeline.service.handlers.marker; + +import org.apache.hudi.common.metrics.Registry; +import org.apache.hudi.common.util.HoodieTimer; + +import org.apache.log4j.LogManager; +import org.apache.log4j.Logger; + +import java.util.List; +import java.util.Map; +import java.util.concurrent.ExecutorService; +import java.util.concurrent.Executors; +import java.util.stream.Collectors; + +/** + * A runnable for scheduling batch processing of marker creation requests. + */ +public class MarkerCreationDispatchingRunnable implements Runnable { + public static final Logger LOG = LogManager.getLogger(MarkerCreationDispatchingRunnable.class); + + // Marker directory states, {markerDirPath -> MarkerDirState instance} + private final Map<String, MarkerDirState> markerDirStateMap; + private final Registry metricsRegistry; + private final ExecutorService executorService; + // Batch process interval in milliseconds + private final long batchIntervalMs; + private boolean isRunning = false; + + public MarkerCreationDispatchingRunnable( + Map<String, MarkerDirState> markerDirStateMap, Registry metricsRegistry, + int batchNumThreads, long batchIntervalMs) { + this.markerDirStateMap = markerDirStateMap; + this.metricsRegistry = metricsRegistry; + this.batchIntervalMs = batchIntervalMs; + this.executorService = Executors.newFixedThreadPool(batchNumThreads); + this.isRunning = true; + } + + public void stop() { + this.isRunning = false; + } + + @Override + public void run() { + while (isRunning) { + HoodieTimer timer = new HoodieTimer().startTimer(); + Map<String, List<MarkerCreationCompletableFuture>> futureMap = + markerDirStateMap.entrySet().stream().collect( + Collectors.toMap(Map.Entry::getKey, + e -> e.getValue().fetchPendingMarkerCreationRequests())); + executorService.execute( + new MarkerCreationBatchingRunnable(markerDirStateMap, metricsRegistry, futureMap)); + + try { + Thread.sleep(Math.max(batchIntervalMs - timer.endTimer(), 0L)); Review comment: Per offline discussion, I changed the scheduling logic into two parts: (1) dispatching of requests in one scheduled executor service which pulls requests and starts a worker thread periodically, and (2) the actual processing of requests in the worker runnable, where all the marker creation processing and file updates happen. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
