rabbitmq channel.addconfirmlistener(),接口ackcallback一些回调丢失了吗?
这是我的代码,channel.addConfirmListener() ackCallback 会丢失一些回调,消息确实发送到了rabbitmq服务器并且可以正常消费,但是我发送消息后休眠了2ms,所有ack回调都可以收到,
我不知道这是我的代码中的错误还是rabbitmq的错误
import com.rabbitmq.client.AMQP;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
import lombok.extern.log4j.Log4j2;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.concurrent.TimeoutException;
@Log4j2
public class 异步确认发布{
public static void main(String[] args) throws IOException, TimeoutException, InterruptedException {
ConnectionFactory connectionFactory = new ConnectionFactory();
connectionFactory.setHost("");
connectionFactory.setPort(7005);
connectionFactory.setUsername("");
connectionFactory.setPassword("");
Connection connection = connectionFactory.newConnection();
Channel channel = connection.createChannel();
// 开启确认发布
AMQP.Confirm.SelectOk selectOk = channel.confirmSelect();
channel.queueDeclare("hello", true, false, false, null);
// 异步确认发布消息 回调
channel.addConfirmListener(
(deliveryTag, multiple) -> {
log.info("消息deliveryTag=>{}, send successful", deliveryTag);
},
(deliveryTag, multiple) -> {
log.info("消息deliveryTag=>{}, fail in send", deliveryTag);
}
);
for (int i = 0; i < 5; i++) {
String message = "Hello World!!! " + i;
channel.basicPublish("", "hello", null, message.getBytes(StandardCharsets.UTF_8));
}
}
}
控制台显示缺少一些回调
17:04:29.607 [AMQP Connection 27.11.210.232:7005] INFO me.demo.me.rabbitmq.consumer.发布确认.异步确认发布 - ackCallback, deliveryTag=>4, send successful
17:04:29.615 [AMQP Connection 27.11.210.232:7005] INFO me.demo.me.rabbitmq.consumer.发布确认.异步确认发布 - ackCallback, deliveryTag=>5, send successful
但是发送消息后我睡了2毫秒,并且可以接收所有回调
示例代码
for (int i = 0; i < 5; i++) {
String message = "Hello World!!! " + i;
channel.basicPublish("", "hello", null, message.getBytes(StandardCharsets.UTF_8));
Thread.sleep(2); // I sleep for 2ms after sending the message, and all ack callbacks can be received
}
控制台日志
17:05:18.037 [AMQP Connection 27.11.210.232:7005] INFO me.demo.me.rabbitmq.consumer.发布确认.异步确认发布 - ackCallback, deliveryTag=>1, send successful
17:05:18.043 [AMQP Connection 27.11.210.232:7005] INFO me.demo.me.rabbitmq.consumer.发布确认.异步确认发布 - ackCallback, deliveryTag=>2, send successful
17:05:18.043 [AMQP Connection 27.11.210.232:7005] INFO me.demo.me.rabbitmq.consumer.发布确认.异步确认发布 - ackCallback, deliveryTag=>3, send successful
17:05:18.043 [AMQP Connection 27.11.210.232:7005] INFO me.demo.me.rabbitmq.consumer.发布确认.异步确认发布 - ackCallback, deliveryTag=>4, send successful
17:05:18.043 [AMQP Connection 27.11.210.232:7005] INFO me.demo.me.rabbitmq.consumer.发布确认.异步确认发布 - ackCallback, deliveryTag=>5, send successful
我的RabbitMQ Server 版本是 3.9.14 (没有修改任何配置。使用默认配置),Erlang 24.3.2 ,
Maven项目依赖在
<dependency>
<groupId>org.springframework.amqp</groupId>
<artifactId>spring-rabbit</artifactId>
<version>2.2.18.RELEASE</version>
</dependency>
我试图阻止主线程关闭,但它似乎不是主线程关闭的原因,因为一旦创建连接主线程不会自动关闭
This is my code, channel.addConfirmListener() ackCallback Some callbacks will be lost, The message is indeed sent to the rabbitmq server and can be consumed normally , But I sleep for 2ms after sending the message, and all ack callbacks can be received,
I don't know if this is an error in my code or a rabbitmq bug
import com.rabbitmq.client.AMQP;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
import lombok.extern.log4j.Log4j2;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.concurrent.TimeoutException;
@Log4j2
public class 异步确认发布{
public static void main(String[] args) throws IOException, TimeoutException, InterruptedException {
ConnectionFactory connectionFactory = new ConnectionFactory();
connectionFactory.setHost("");
connectionFactory.setPort(7005);
connectionFactory.setUsername("");
connectionFactory.setPassword("");
Connection connection = connectionFactory.newConnection();
Channel channel = connection.createChannel();
// 开启确认发布
AMQP.Confirm.SelectOk selectOk = channel.confirmSelect();
channel.queueDeclare("hello", true, false, false, null);
// 异步确认发布消息 回调
channel.addConfirmListener(
(deliveryTag, multiple) -> {
log.info("消息deliveryTag=>{}, send successful", deliveryTag);
},
(deliveryTag, multiple) -> {
log.info("消息deliveryTag=>{}, fail in send", deliveryTag);
}
);
for (int i = 0; i < 5; i++) {
String message = "Hello World!!! " + i;
channel.basicPublish("", "hello", null, message.getBytes(StandardCharsets.UTF_8));
}
}
}
The console shows some callbacks missing
17:04:29.607 [AMQP Connection 27.11.210.232:7005] INFO me.demo.me.rabbitmq.consumer.发布确认.异步确认发布 - ackCallback, deliveryTag=>4, send successful
17:04:29.615 [AMQP Connection 27.11.210.232:7005] INFO me.demo.me.rabbitmq.consumer.发布确认.异步确认发布 - ackCallback, deliveryTag=>5, send successful
But I sleep for 2ms after sending the message, and all callbacks can be received
example code
for (int i = 0; i < 5; i++) {
String message = "Hello World!!! " + i;
channel.basicPublish("", "hello", null, message.getBytes(StandardCharsets.UTF_8));
Thread.sleep(2); // I sleep for 2ms after sending the message, and all ack callbacks can be received
}
console log
17:05:18.037 [AMQP Connection 27.11.210.232:7005] INFO me.demo.me.rabbitmq.consumer.发布确认.异步确认发布 - ackCallback, deliveryTag=>1, send successful
17:05:18.043 [AMQP Connection 27.11.210.232:7005] INFO me.demo.me.rabbitmq.consumer.发布确认.异步确认发布 - ackCallback, deliveryTag=>2, send successful
17:05:18.043 [AMQP Connection 27.11.210.232:7005] INFO me.demo.me.rabbitmq.consumer.发布确认.异步确认发布 - ackCallback, deliveryTag=>3, send successful
17:05:18.043 [AMQP Connection 27.11.210.232:7005] INFO me.demo.me.rabbitmq.consumer.发布确认.异步确认发布 - ackCallback, deliveryTag=>4, send successful
17:05:18.043 [AMQP Connection 27.11.210.232:7005] INFO me.demo.me.rabbitmq.consumer.发布确认.异步确认发布 - ackCallback, deliveryTag=>5, send successful
My RabbitMQ Server Version is 3.9.14 (No configuration has been modified. The default configuration is used), Erlang 24.3.2 ,
Maven Project dependency in
<dependency>
<groupId>org.springframework.amqp</groupId>
<artifactId>spring-rabbit</artifactId>
<version>2.2.18.RELEASE</version>
</dependency>
I tried to prevent the main thread from shutting down, but it doesn't seem to be the reason for the main thread to shut down, because the main thread won't shut down automatically once the connection is created
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我不知道你为什么用 spring- 来标记这个rabbit 因为你根本没有使用 spring-rabbit API;您直接使用 amqp-client 。
这是按设计工作的;出于性能原因,确认回调在 true 时具有附加参数
multiple
;这意味着,直到并包括此标签在内的所有标签均通过一次确认进行确认。https://www.rabbitmq.com/tutorials/tutorial-7-java。 html
I am not sure why you tagged this with spring-rabbit because you are not using the spring-rabbit APIs at all; you are using the amqp-client directly.
This is working as designed; for performance reasons, the confirm callback has the additional argument
multiple
when true; this means that all tags up to and including this one are confirmed with a single confirmation.https://www.rabbitmq.com/tutorials/tutorial-seven-java.html