调试RocketMQ的源代码

喜欢ヅ旅行 2023-01-17 09:30 118阅读 0赞

**GitHub代码库链接: **[https://github.com/apache/rocketmq.git][https_github.com_apache_rocketmq.git]

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**进行编译下载依赖**

mvn clean install -Dmaven.test.skip=true

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# 调试RocketMQ源码 #

## 1．启动NameServer ##

### **1.在RocketMQ运行主目录中创建conf、logs、store三个文件夹。** ###

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### 2.配置 ROCKETMQ\_HOME ###

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ROCKETMQ_HOME=E:\rocketmq

### 3.从RocketMQ distribution部署目录中将broker.conf、logback\_broker.xml、logback\_broker.xml文件复制到conf目录中 ###

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**修改broker.conf配置文件**

brokerClusterName = DefaultCluster
    brokerName = broker-a
    brokerId = 0
    deleteWhen = 04
    fileReservedTime = 48
    brokerRole = ASYNC_MASTER
    flushDiskType = ASYNC_FLUSH
    namesrvAddr=127.0.0.1:9876
    #存储路径
    storePathRootDir=E:\\rocketmq\\store
    #commitLog 存储路径
    storePathCommitLog=E:\\rocketmq\\storecommitlog
    #消费队列存储路径存储路径
    storePathConsumeQueue=E:\\rocketmq\\storeconsumequeue
    #消息索引存储路径
    storePathIndex=E:\\rocketmq\\storeindex
    #checkpoint 文件存储路径
    storeCheckpoint=E:\\rocketmq\\storecheckpoint
    #abort 文件存储路径
    abortFile=E:\\rocketmq\\storeabort

###  4.启动 ###

![20210428211709215.png][]

## 2．启动Broker ##

### 1.配置ROCKETMQ\_HOME ###

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-c E:\rocketmq\conf\broker.conf
    ROCKETMQ_HOME=E:\rocketmq

### 2.启动 ###

![20210428212246905.png][]

# 测试 #

/*
     * 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.rocketmq.example.quickstart;
    
    import org.apache.rocketmq.client.exception.MQClientException;
    import org.apache.rocketmq.client.producer.DefaultMQProducer;
    import org.apache.rocketmq.client.producer.SendResult;
    import org.apache.rocketmq.common.message.Message;
    import org.apache.rocketmq.remoting.common.RemotingHelper;
    
    /**
     * This class demonstrates how to send messages to brokers using provided {@link DefaultMQProducer}.
     */
    public class Producer {
        public static void main(String[] args) throws MQClientException, InterruptedException {
    
            /*
             * Instantiate with a producer group name.
             */
            DefaultMQProducer producer = new DefaultMQProducer("please_rename_unique_group_name");
    
            /*
             * Specify name server addresses.
             * <p/>
             *
             * Alternatively, you may specify name server addresses via exporting environmental variable: NAMESRV_ADDR
             * <pre>
             * {@code
             * producer.setNamesrvAddr("name-server1-ip:9876;name-server2-ip:9876");
             * }
             * </pre>
             */
            producer.setNamesrvAddr("127.0.0.1:9876");
            /*
             * Launch the instance.
             */
            producer.start();
    
            for (int i = 0; i < 1000; i++) {
                try {
    
                    /*
                     * Create a message instance, specifying topic, tag and message body.
                     */
                    Message msg = new Message("TopicTest" /* Topic */,
                        "TagA" /* Tag */,
                        ("Hello RocketMQ " + i).getBytes(RemotingHelper.DEFAULT_CHARSET) /* Message body */
                    );
    
                    /*
                     * Call send message to deliver message to one of brokers.
                     */
                    SendResult sendResult = producer.send(msg);
    
                    System.out.printf("%s%n", sendResult);
                } catch (Exception e) {
                    e.printStackTrace();
                    Thread.sleep(1000);
                }
            }
    
            /*
             * Shut down once the producer instance is not longer in use.
             */
            producer.shutdown();
        }
    }

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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.rocketmq.example.quickstart;
    
    import java.util.List;
    import org.apache.rocketmq.client.consumer.DefaultMQPushConsumer;
    import org.apache.rocketmq.client.consumer.listener.ConsumeConcurrentlyContext;
    import org.apache.rocketmq.client.consumer.listener.ConsumeConcurrentlyStatus;
    import org.apache.rocketmq.client.consumer.listener.MessageListenerConcurrently;
    import org.apache.rocketmq.client.exception.MQClientException;
    import org.apache.rocketmq.common.consumer.ConsumeFromWhere;
    import org.apache.rocketmq.common.message.MessageExt;
    
    /**
     * This example shows how to subscribe and consume messages using providing {@link DefaultMQPushConsumer}.
     */
    public class Consumer {
    
        public static void main(String[] args) throws InterruptedException, MQClientException {
    
            /*
             * Instantiate with specified consumer group name.
             */
            DefaultMQPushConsumer consumer = new DefaultMQPushConsumer("please_rename_unique_group_name_4");
    
            /*
             * Specify name server addresses.
             * <p/>
             *
             * Alternatively, you may specify name server addresses via exporting environmental variable: NAMESRV_ADDR
             * <pre>
             * {@code
             * consumer.setNamesrvAddr("name-server1-ip:9876;name-server2-ip:9876");
             * }
             * </pre>
             */
            consumer.setNamesrvAddr("127.0.0.1:9876");
            /*
             * Specify where to start in case the specified consumer group is a brand new one.
             */
            consumer.setConsumeFromWhere(ConsumeFromWhere.CONSUME_FROM_FIRST_OFFSET);
    
            /*
             * Subscribe one more more topics to consume.
             */
            consumer.subscribe("TopicTest", "*");
    
            /*
             *  Register callback to execute on arrival of messages fetched from brokers.
             */
            consumer.registerMessageListener(new MessageListenerConcurrently() {
    
                @Override
                public ConsumeConcurrentlyStatus consumeMessage(List<MessageExt> msgs,
                    ConsumeConcurrentlyContext context) {
                    System.out.printf("%s Receive New Messages: %s %n", Thread.currentThread().getName(), msgs);
                    return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
                }
            });
    
            /*
             *  Launch the consumer instance.
             */
            consumer.start();
    
            System.out.printf("Consumer Started.%n");
        }
    }

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[https_github.com_apache_rocketmq.git]: https://github.com/apache/rocketmq.git
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