org.apache.samza.tools.benchmark.SystemProducerBench.java Source code

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Here is the source code for org.apache.samza.tools.benchmark.SystemProducerBench.java

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/*
 * 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.samza.tools.benchmark;

import java.io.IOException;
import java.time.Duration;
import java.time.Instant;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.function.Function;
import java.util.stream.Collectors;
import java.util.stream.IntStream;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.ParseException;
import org.apache.samza.Partition;
import org.apache.samza.config.Config;
import org.apache.samza.config.MapConfig;
import org.apache.samza.system.OutgoingMessageEnvelope;
import org.apache.samza.system.SystemProducer;
import org.apache.samza.system.SystemStreamPartition;
import org.apache.samza.tools.CommandLineHelper;
import org.apache.samza.tools.RandomValueGenerator;
import org.apache.samza.util.NoOpMetricsRegistry;

/**
 * Generic benchmark test for a {@link SystemProducer}.
 */
public class SystemProducerBench extends AbstractSamzaBench {

    private static final String OPT_SHORT_MESSAGE_SIZE = "sz";
    private static final String OPT_LONG_MESSAGE_SIZE = "size";
    private static final String OPT_ARG_MESSAGE_SIZE = "MESSAGE_SIZE";
    private static final String OPT_DESC_MESSAGE_SIZE = "Size of the message in bytes.";

    private byte[] value;

    public static void main(String args[]) throws Exception {
        SystemProducerBench bench = new SystemProducerBench(args);
        bench.start();
    }

    public SystemProducerBench(String args[]) throws ParseException {
        super("system-producer", args);
    }

    public void addOptions(Options options) {
        options.addOption(CommandLineHelper.createOption(OPT_SHORT_MESSAGE_SIZE, OPT_LONG_MESSAGE_SIZE,
                OPT_ARG_MESSAGE_SIZE, true, OPT_DESC_MESSAGE_SIZE));
    }

    public void start() throws IOException, InterruptedException {

        super.start();
        String source = "SystemProducerBench";

        int size = Integer.parseInt(cmd.getOptionValue(OPT_SHORT_MESSAGE_SIZE));
        RandomValueGenerator randGenerator = new RandomValueGenerator(System.currentTimeMillis());
        value = randGenerator.getNextString(size, size).getBytes();

        NoOpMetricsRegistry metricsRegistry = new NoOpMetricsRegistry();
        List<SystemStreamPartition> ssps = createSSPs(systemName, physicalStreamName, startPartition, endPartition);
        SystemProducer producer = factory.getProducer(systemName, config, metricsRegistry);
        producer.register(source);
        producer.start();

        System.out.println("starting production at " + Instant.now());
        Instant startTime = Instant.now();
        for (int index = 0; index < totalEvents; index++) {
            SystemStreamPartition ssp = ssps.get(index % ssps.size());
            OutgoingMessageEnvelope messageEnvelope = createMessageEnvelope(ssp, index);
            producer.send(source, messageEnvelope);
        }

        System.out.println("Ending production at " + Instant.now());
        System.out.println(String.format("Event Rate is %s Messages/Sec",
                (totalEvents * 1000 / Duration.between(startTime, Instant.now()).toMillis())));

        producer.flush(source);

        System.out.println("Ending flush at " + Instant.now());
        System.out.println(String.format("Event Rate with flush is %s Messages/Sec",
                (totalEvents * 1000 / Duration.between(startTime, Instant.now()).toMillis())));
        producer.stop();
        System.exit(0);
    }

    /**
     * Naive create message implementation that uses the same random string for each of the message.
     * If a system producer wants to test with a specific type of messages, It needs to override this method.
     */
    OutgoingMessageEnvelope createMessageEnvelope(SystemStreamPartition ssp, int index) {
        return new OutgoingMessageEnvelope(ssp.getSystemStream(), String.valueOf(index), value);
    }

    /**
     * Simple implementation to create SSPs that assumes that the partitions are ordered list of integers.
     */
    List<SystemStreamPartition> createSSPs(String systemName, String physicalStreamName, int startPartition,
            int endPartition) {
        return IntStream.range(startPartition, endPartition)
                .mapToObj(x -> new SystemStreamPartition(systemName, physicalStreamName, new Partition(x)))
                .collect(Collectors.toList());
    }
}