标签:apach 环境 命名 override too 博客 ati test tac
本博客以当前RocketMQ最新版介绍:v4.4.0
> unzip rocketmq-all-4.4.0-bin-release.zip && mv rocketmq-all-4.4.0-bin-release rocketmq
> cd /root/rocketmq
> nohup sh bin/mqnamesrv & // 第一次安装时,可执行sh bin/mqnamesrv观察是否能够启动
> tailf -f ~/logs/rocketmqlogs/namesrv.log
// 观察到以下日志时,server已启动成功
2019-09-07 18:06:13 INFO main - The Name Server boot success. serializeType=JSON
> nohup sh bin/mqbroker -n localhost:9876
> tailf -f ~/logs/rocketmqlogs/broker.log
// 观察到以下日志时,server已启动成功
2019-09-07 20:40:06 INFO main - The broker[0daf9bd41237, 172.17.0.2:10911] boot success. serializeType=JSON and name server is 172.17.0.2:9876
注:broker启动如果过一会直接退出,无任何日志或报错的话,检查一下机子的内存是否充足。RocketMQ的broker默认内存为8g。
修改文件:/root/rocketmq/bin/runbroker.sh
JAVA_OPT="${JAVA_OPT} -server -Xms1g -Xmx1g -Xmn512m"
// 在测试之前,我们需要先设置环境变量:export NAMESRV_ADDR=localhost:9876
> sh bin/tools.sh org.apache.rocketmq.example.quickstart.Producer
SendResult [sendStatus=SEND_OK, msgId= ...
> sh bin/tools.sh org.apache.rocketmq.example.quickstart.Consumer
ConsumeMessageThread_%d Receive New Messages: [MessageExt...
Producer的源码
public class Producer {
public static void main(String[] args) throws MQClientException, InterruptedException {
// 默认消费组
DefaultMQProducer producer = new DefaultMQProducer("default");
producer.start();
for (int i = 0; i < 1000; i++) {
try {
Message msg = new Message("TopicTest" /* Topic */,
"TagA" /* Tag */,
("Hello RocketMQ " + i).getBytes(RemotingHelper.DEFAULT_CHARSET) /* Message body */
);
// 消息发送
SendResult sendResult = producer.send(msg);
System.out.printf("%s%n", sendResult);
} catch (Exception e) {
e.printStackTrace();
Thread.sleep(1000);
}
}
// 关闭生产者
producer.shutdown();
}
}
Consumer的源码
public class Consumer {
public static void main(String[] args) throws InterruptedException, MQClientException {
// 指定消费组
DefaultMQPushConsumer consumer = new DefaultMQPushConsumer("default");
// 设置消费偏移点
consumer.setConsumeFromWhere(ConsumeFromWhere.CONSUME_FROM_FIRST_OFFSET);
// 订阅topic,以及tag
consumer.subscribe("TopicTest", "*");
// 注册消息监听器
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);
// 收到数据后,返回ack确认
return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
}
});
consumer.start();
System.out.printf("Consumer Started.%n");
}
}
> sh bin/mqshutdown broker
The mqbroker(36695) is running...
Send shutdown request to mqbroker(36695) OK
> sh bin/mqshutdown namesrv
The mqnamesrv(36664) is running...
Send shutdown request to mqnamesrv(36664) OK
标签:apach 环境 命名 override too 博客 ati test tac
原文地址:https://www.cnblogs.com/chenkaiyin1201/p/11483286.html