Linux下怎么部署分布式消息系统RocketMQ

一、本篇所需文件下载

链接：https://pan.baidu.com/s/17iUB1lBOjv4CBAEQFvn65A 提取码：v0sn

一、Linux环境搭建

1、安装 jdk环境

RocketMQ java编写，需要jdk环境

下载jdk 1.7.0_80 上传到linux ，必须64位，32位RocketMQ不支持

tar -zxvf  jdk-7u80-linux-x64.tar.gz        //解压

修改环境变量 vim /etc/profile

export JAVA_HOME=/usr/local/jdk1.7.0_80export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jarexport PATH=$JAVA_HOME/bin:$PATH

刷新配置

source /etc/profile

或jdk1.8下载安装教程：https://blog.csdn.net/qq_41463655/article/details/99173682

2、安装RocketMQ

2.1、上传alibaba-rocketmq-3.2.6.tar.gz 上传到linux解压安装

tar -zxvf alibaba-rocketmq-3.2.6.tar.gz -C /usr/local                //解压到 /usr/localmv /usr/local/alibaba-rocketmq /usr/local/alibaba-rocketmq-3.2.6      //重命名
ln -s /usr/local/alibaba-rocketmq-3.2.6 rocketmq                      //安装

安装好了

2.2、创建存储路径

cd  /usr/local/rocketmq
mkdir store
mkdir store/commitlog
mkdir store/consumequeue
mkdir store/index

2.3、日志配置

cd  /usr/local/rocketmq
mkdir logs        cd conf && sed -i 's#${user.home}#/usr/local/rocketmq#g' *.xml

2.4、配置 broker-a.properties / broker-b.properties /usr/local/rocketmq/conf/2m-noslave/ 目录下

2.4.1、broker-a.properties

#所属集群名字brokerClusterName=rocketmq-cluster#broker名字，注意此处不同的配置文件填写的不一样brokerName=broker-a|broker-b#0 表示 Master，>0 表示 SlavebrokerId=0#nameServer地址，分号分割namesrvAddr=rocketmq-nameserver1:9876;rocketmq-nameserver2:9876#在发送消息时，自动创建服务器不存在的topic，默认创建的队列数defaultTopicQueueNums=4#是否允许 Broker 自动创建Topic，建议线下开启，线上关闭autoCreateTopicEnable=true#是否允许 Broker 自动创建订阅组，建议线下开启，线上关闭autoCreateSubscriptionGroup=true#Broker 对外服务的监听端口listenPort=10911#删除文件时间点，默认凌晨 4点deleteWhen=04#文件保留时间，默认 48 小时fileReservedTime=120#commitLog每个文件的大小默认1GmapedFileSizeCommitLog=1073741824#ConsumeQueue每个文件默认存30W条，根据业务情况调整mapedFileSizeConsumeQueue=300000#destroyMapedFileIntervalForcibly=120000#redeleteHangedFileInterval=120000#检测物理文件磁盘空间diskMaxUsedSpaceRatio=88#存储路径storePathRootDir=/usr/local/rocketmq/store#commitLog 存储路径storePathCommitLog=/usr/local/rocketmq/store/commitlog#消费队列存储路径存储路径storePathConsumeQueue=/usr/local/rocketmq/store/consumequeue#消息索引存储路径storePathIndex=/usr/local/rocketmq/store/index#checkpoint 文件存储路径storeCheckpoint=/usr/local/rocketmq/store/checkpoint#abort 文件存储路径abortFile=/usr/local/rocketmq/store/abort#限制的消息大小maxMessageSize=65536#flushCommitLogLeastPages=4#flushConsumeQueueLeastPages=2#flushCommitLogThoroughInterval=10000#flushConsumeQueueThoroughInterval=60000#Broker 的角色#- ASYNC_MASTER 异步复制Master#- SYNC_MASTER 同步双写Master#- SLAVEbrokerRole=ASYNC_MASTER#刷盘方式#- ASYNC_FLUSH 异步刷盘#- SYNC_FLUSH 同步刷盘flushDiskType=ASYNC_FLUSH#checkTransactionMessageEnable=false#发消息线程池数量#sendMessageThreadPoolNums=128#拉消息线程池数量#pullMessageThreadPoolNums=128

2.4.2、broker-b.properties

#所属集群名字brokerClusterName=rocketmq-cluster#broker名字，注意此处不同的配置文件填写的不一样brokerName=broker-a|broker-b#0 表示 Master，>0 表示 SlavebrokerId=0#nameServer地址，分号分割namesrvAddr=rocketmq-nameserver1:9876;rocketmq-nameserver2:9876#在发送消息时，自动创建服务器不存在的topic，默认创建的队列数defaultTopicQueueNums=4#是否允许 Broker 自动创建Topic，建议线下开启，线上关闭autoCreateTopicEnable=true#是否允许 Broker 自动创建订阅组，建议线下开启，线上关闭autoCreateSubscriptionGroup=true#Broker 对外服务的监听端口listenPort=10911#删除文件时间点，默认凌晨 4点deleteWhen=04#文件保留时间，默认 48 小时fileReservedTime=120#commitLog每个文件的大小默认1GmapedFileSizeCommitLog=1073741824#ConsumeQueue每个文件默认存30W条，根据业务情况调整mapedFileSizeConsumeQueue=300000#destroyMapedFileIntervalForcibly=120000#redeleteHangedFileInterval=120000#检测物理文件磁盘空间diskMaxUsedSpaceRatio=88#存储路径storePathRootDir=/usr/local/rocketmq/store#commitLog 存储路径storePathCommitLog=/usr/local/rocketmq/store/commitlog#消费队列存储路径存储路径storePathConsumeQueue=/usr/local/rocketmq/store/consumequeue#消息索引存储路径storePathIndex=/usr/local/rocketmq/store/index#checkpoint 文件存储路径storeCheckpoint=/usr/local/rocketmq/store/checkpoint#abort 文件存储路径abortFile=/usr/local/rocketmq/store/abort#限制的消息大小maxMessageSize=65536#flushCommitLogLeastPages=4#flushConsumeQueueLeastPages=2#flushCommitLogThoroughInterval=10000#flushConsumeQueueThoroughInterval=60000#Broker 的角色#- ASYNC_MASTER 异步复制Master#- SYNC_MASTER 同步双写Master#- SLAVEbrokerRole=ASYNC_MASTER#刷盘方式#- ASYNC_FLUSH 异步刷盘#- SYNC_FLUSH 同步刷盘flushDiskType=ASYNC_FLUSH#checkTransactionMessageEnable=false#发消息线程池数量#sendMessageThreadPoolNums=128#拉消息线程池数量#pullMessageThreadPoolNums=128

两个配置文件需修改处

brokerName=broker-a|broker-b      集群a服务器配置修改为   brokerName=broker-abrokerName=broker-a|broker-b      集群b服务器配置修改为   brokerName=broker-b

2.5、修改启动参数 /rocketm/bin下 （jvm）

runbroker.sh 的JAVA_OPT runserver.sh 的JAVA_OPT

JAVA_OPT="${JAVA_OPT} -server -Xms4g -Xmx4g -Xmn2g -XX:PermSize=128m -XX:MaxPermSize=320m"修改为
JAVA_OPT="${JAVA_OPT} -server -Xms1g -Xmx1g -Xmn512m -XX:PermSize=128m -XX:MaxPermSize=320m"

2.6、启动 NameServer 安装目录 /usr/local/ /rocketmq/bin 目录下

nohup sh mqnamesrv &

2.7、启动 BrokerServer /rocketmq/bin 目录下

nohup sh mqbroker -c /usr/local/rocketmq/conf/2m-noslave/broker-a.properties >/dev/null 2>&1 &
netstat -ntlp

查看启动状态

jps

结果如下启动成功

3.修改linux 服务器host

本机ip，配置域名

192.168.177.128 rocketmq-nameserver1
192.168.177.128 rocketmq-master1
192.168.111.129 rocketmq-nameserver2
192.168.111.129 rocketmq-master2

图片

4.安装后台管理平台

解压安装 tomcat 7.0到 /usr/local/

tar -zxvf apache-tomcat-7.0.65.tar.gz -C /usr/local

把rocketmq-web-console.war 复制到apache-tomcat-7.0.65 的webapps 目录下 启动tomcat 自动解压，然后修改config /rocketmq-web-console/WEB-INF/classes 的 config.properties 配置 修改ip

单服务器
rocketmq.namesrv.addr=192.168.177.128:9876

多服务器  
rocketmq.namesrv.addr=192.168.177.128:9876;192.168.177.129:9876

关闭tomcat / 重启tomcat

关闭防火墙

systemctl disable firewalld   或  chkconfig iptables off

访问 —-》 ip:8080/rocketmq-web-console 出现下方界面就ok了

java 操作

1、生产者

import com.alibaba.rocketmq.client.exception.MQClientException;
import com.alibaba.rocketmq.client.producer.DefaultMQProducer;
import com.alibaba.rocketmq.client.producer.SendResult;
import com.alibaba.rocketmq.common.message.Message;

public class Producer {

   public static void main(String[] args) throws MQClientException {
       DefaultMQProducer producer = new DefaultMQProducer("rmq-group");
       producer.setNamesrvAddr("192.168.177.128:9876;192.268.177.129:9876");
       producer.setInstanceName("producer");
       producer.start();
       try {
           for (int i = 0; i "test-topic",
                       "TagA",
                       ("test-topic-"+i).getBytes()
               );
               SendResult sendResult = producer.send(msg);
               System.out.println(sendResult.toString());
           }
       } catch (Exception e) {
           e.printStackTrace();
       }
       producer.shutdown();
   }

}

2、消费者

import com.alibaba.rocketmq.client.consumer.DefaultMQPushConsumer;
import com.alibaba.rocketmq.client.consumer.listener.ConsumeConcurrentlyContext;
import com.alibaba.rocketmq.client.consumer.listener.ConsumeConcurrentlyStatus;
import com.alibaba.rocketmq.client.consumer.listener.MessageListenerConcurrently;
import com.alibaba.rocketmq.client.exception.MQClientException;
import com.alibaba.rocketmq.common.message.MessageExt;

import java.util.List;

public class Consumer {
   public static void main(String[] args) throws MQClientException {
       DefaultMQPushConsumer consumer = new DefaultMQPushConsumer("rmq-group");

       consumer.setNamesrvAddr("192.168.177.128:9876;192.268.177.129:9876");
       consumer.setInstanceName("consumer");
       consumer.subscribe("test-topic", "TagA");

       consumer.registerMessageListener(new MessageListenerConcurrently() {
           @Override
           public ConsumeConcurrentlyStatus consumeMessage(List msgs, ConsumeConcurrentlyContext context) {
               for (MessageExt msg : msgs) {
                   System.out.println(msg.getMsgId()+"---"+new String(msg.getBody()));
               }
               //返回成功消费状态
               return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
           }
       });
       consumer.start();
       System.out.println("Consumer Started.");
   }
}

会出现幂等问题，使用全局id，或者时间戳，业务的唯一id 进行判断，使用redis等日志记录判断是否存在，存在表示已经成功消费