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| 1 | +/* |
| 2 | + * Licensed to the Apache Software Foundation (ASF) under one or more |
| 3 | + * contributor license agreements. See the NOTICE file distributed with |
| 4 | + * this work for additional information regarding copyright ownership. |
| 5 | + * The ASF licenses this file to You under the Apache License, Version 2.0 |
| 6 | + * (the "License"); you may not use this file except in compliance with |
| 7 | + * the License. You may obtain a copy of the License at |
| 8 | + * |
| 9 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | + * |
| 11 | + * Unless required by applicable law or agreed to in writing, software |
| 12 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | + * See the License for the specific language governing permissions and |
| 15 | + * limitations under the License. |
| 16 | + */ |
| 17 | +package org.astraea.app.homework; |
| 18 | + |
| 19 | +import com.beust.jcommander.Parameter; |
| 20 | +import java.io.Closeable; |
| 21 | +import java.io.IOException; |
| 22 | +import java.nio.ByteBuffer; |
| 23 | +import java.time.Duration; |
| 24 | +import java.util.List; |
| 25 | +import java.util.Map; |
| 26 | +import java.util.Set; |
| 27 | +import java.util.concurrent.CompletableFuture; |
| 28 | +import java.util.concurrent.TimeUnit; |
| 29 | +import java.util.concurrent.atomic.AtomicLong; |
| 30 | +import java.util.stream.Collectors; |
| 31 | +import java.util.stream.IntStream; |
| 32 | +import org.apache.kafka.clients.producer.KafkaProducer; |
| 33 | +import org.apache.kafka.clients.producer.ProducerConfig; |
| 34 | +import org.apache.kafka.clients.producer.ProducerRecord; |
| 35 | +import org.apache.kafka.common.serialization.ByteArraySerializer; |
| 36 | +import org.apache.kafka.common.serialization.Serializer; |
| 37 | +import org.astraea.app.argument.DurationField; |
| 38 | +import org.astraea.app.argument.StringListField; |
| 39 | +import org.astraea.common.DataSize; |
| 40 | +import org.astraea.common.admin.Admin; |
| 41 | +import org.astraea.common.admin.TopicPartition; |
| 42 | + |
| 43 | +public class SendYourData { |
| 44 | + |
| 45 | + private static final int NUMBER_OF_PARTITIONS = 4; |
| 46 | + |
| 47 | + public static void main(String[] args) throws IOException, InterruptedException { |
| 48 | + execute(Argument.parse(new Argument(), args)); |
| 49 | + } |
| 50 | + |
| 51 | + public static void execute(final Argument param) throws IOException, InterruptedException { |
| 52 | + try (var admin = Admin.of(param.bootstrapServers())) { |
| 53 | + param.topics.forEach( |
| 54 | + t -> |
| 55 | + admin |
| 56 | + .creator() |
| 57 | + .topic(t) |
| 58 | + .numberOfReplicas((short) 1) |
| 59 | + .numberOfPartitions(NUMBER_OF_PARTITIONS) |
| 60 | + .run() |
| 61 | + .toCompletableFuture() |
| 62 | + .join()); |
| 63 | + admin.waitCluster( |
| 64 | + Set.copyOf(param.topics), |
| 65 | + clusterInfo -> clusterInfo.topicNames().containsAll(param.topics), |
| 66 | + Duration.ofSeconds(10), |
| 67 | + 1); |
| 68 | + } |
| 69 | + var keys = |
| 70 | + List.of( |
| 71 | + new Key(IntStream.range(0, 1000).mapToObj(Long::valueOf).toList()), |
| 72 | + new Key(IntStream.range(0, 2500).mapToObj(Long::valueOf).toList()), |
| 73 | + new Key(IntStream.range(0, 3000).mapToObj(Long::valueOf).toList())); |
| 74 | + var max = Runtime.getRuntime().totalMemory(); |
| 75 | + var count = new AtomicLong(); |
| 76 | + try (var sender = new YourSender(param.bootstrapServers())) { |
| 77 | + var start = System.currentTimeMillis(); |
| 78 | + var fs = |
| 79 | + IntStream.range(0, 5) |
| 80 | + .mapToObj( |
| 81 | + __ -> |
| 82 | + CompletableFuture.runAsync( |
| 83 | + () -> { |
| 84 | + while (System.currentTimeMillis() - start |
| 85 | + <= param.duration.toMillis()) { |
| 86 | + var index = count.getAndIncrement(); |
| 87 | + sender.send(param.topics, keys.get((int) (index % keys.size()))); |
| 88 | + } |
| 89 | + })) |
| 90 | + .toList(); |
| 91 | + while (!fs.stream().allMatch(CompletableFuture::isDone)) { |
| 92 | + max = Math.max(max, Runtime.getRuntime().totalMemory()); |
| 93 | + TimeUnit.MILLISECONDS.sleep(300); |
| 94 | + } |
| 95 | + } |
| 96 | + try (var admin = Admin.of(param.bootstrapServers())) { |
| 97 | + var offsets = |
| 98 | + param.topics.stream() |
| 99 | + .collect( |
| 100 | + Collectors.toUnmodifiableMap( |
| 101 | + t -> t, |
| 102 | + t -> |
| 103 | + admin |
| 104 | + .latestOffsets( |
| 105 | + IntStream.range(0, NUMBER_OF_PARTITIONS) |
| 106 | + .mapToObj(i -> TopicPartition.of(t, i)) |
| 107 | + .collect(Collectors.toSet())) |
| 108 | + .toCompletableFuture() |
| 109 | + .join() |
| 110 | + .values() |
| 111 | + .stream() |
| 112 | + .mapToLong(i -> i) |
| 113 | + .sum())); |
| 114 | + System.out.println("memory=" + DataSize.Byte.of(max)); |
| 115 | + offsets.forEach((t, o) -> System.out.println(t + "=" + o)); |
| 116 | + } |
| 117 | + } |
| 118 | + |
| 119 | + public record Key(List<Long> vs) {} |
| 120 | + |
| 121 | + public static class YourSender implements Closeable { |
| 122 | + private final KafkaProducer<Key, byte[]> producer; |
| 123 | + |
| 124 | + @Override |
| 125 | + public void close() throws IOException { |
| 126 | + producer.close(); |
| 127 | + } |
| 128 | + |
| 129 | + public YourSender(String bootstrapServers) { |
| 130 | + Serializer<Key> serializer = |
| 131 | + (topic, key) -> { |
| 132 | + var buffer = ByteBuffer.allocate(Long.BYTES * key.vs.size()); |
| 133 | + key.vs.forEach(buffer::putLong); |
| 134 | + buffer.flip(); |
| 135 | + var bytes = new byte[buffer.remaining()]; |
| 136 | + buffer.get(bytes); |
| 137 | + return bytes; |
| 138 | + }; |
| 139 | + producer = |
| 140 | + new KafkaProducer<>( |
| 141 | + Map.of(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, bootstrapServers), |
| 142 | + serializer, |
| 143 | + new ByteArraySerializer()); |
| 144 | + } |
| 145 | + |
| 146 | + public void send(List<String> topic, Key key) { |
| 147 | + topic.forEach(t -> producer.send(new ProducerRecord<>(t, key, null))); |
| 148 | + } |
| 149 | + } |
| 150 | + |
| 151 | + public static class Argument extends org.astraea.app.argument.Argument { |
| 152 | + @Parameter( |
| 153 | + names = {"--topics"}, |
| 154 | + description = "List<String>: topic names which you subscribed", |
| 155 | + validateWith = StringListField.class, |
| 156 | + listConverter = StringListField.class, |
| 157 | + required = true) |
| 158 | + List<String> topics; |
| 159 | + |
| 160 | + @Parameter( |
| 161 | + names = {"--duration"}, |
| 162 | + description = "duration: the time to test", |
| 163 | + validateWith = DurationField.class, |
| 164 | + converter = DurationField.class) |
| 165 | + Duration duration = Duration.ofSeconds(20); |
| 166 | + } |
| 167 | +} |
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