Java 使用CoreAPI消费后，HornetQ消息仍保留在队列中

我是大黄蜂队的新手，所以请容忍我。首先让我告诉你我的要求：

我需要一个消息队列中间件，它可以在不同的进程之间传递大约1k大小的消息，具有低延迟和持久性（也就是说，它应该能够经受住系统崩溃）。我将有多个进程写入同一队列，并且类似地有多个进程从同一队列读取

为此，我选择了HornetQ，因为它在持久性消息传递方面具有最好的评级

我目前使用的是Hornetq v2.2.2Final作为独立服务器
我能够使用核心api（ClientSession）成功创建持久/非持久队列，并成功将消息发布到队列（ClientProducer）。
同样，我能够使用核心api（ClientConsumer）从队列中读取消息

在此之后，当客户端读取消息时，消息仍保留在队列中，即队列中的消息数保持不变。也许我弄错了，但我的印象是，一旦消息被消费（read+ack），它就会从队列中删除。但我的情况不是这样，同样的消息会被反复阅读

此外，我还想告诉大家，我已经尝试使用非持久性队列处理非持久性消息。但问题依然存在

我正在使用的制作人代码：

public class HQProducer implements Runnable {

    private ClientProducer producer;
    private boolean killme;
    private ClientSession session;
    private boolean durableMsg;

    public HQProducer(String host, int port, String address, String queueName,
            boolean deleteQ, boolean durable, boolean durableMsg, int pRate) {
        this.durableMsg = durableMsg;
        try {
            HashMap map = new HashMap();
            map.put("host", host);
            map.put("port", port);

            TransportConfiguration config = new TransportConfiguration(NettyConnectorFactory.class.getName(), map);

            ServerLocator locator = HornetQClient.createServerLocatorWithoutHA(config);

            ClientSessionFactory factory = locator.createSessionFactory();

            session = factory.createSession();

            if (queueExists(queueName)) {
                if (deleteQ) {
                    System.out.println("Deleting existing queue :: " + queueName);
                    session.deleteQueue(queueName);
                    System.out.println("Creating queue :: " + queueName);
                    session.createQueue(address, queueName, true);
                }
            } else {
                System.out.println("Creating new  queue :: " + queueName);
                session.createQueue(address, queueName, durable);
            }
            producer = session.createProducer(SimpleString.toSimpleString(address), pRate);

            killme = false;
        } catch (Exception ex) {
            Logger.getLogger(HQTestProducer.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    @Override
    public void run() {
        long time = System.currentTimeMillis();
        int cnt = 0;
        long timediff;
        while (!killme) {
            try {
                ClientMessage message = session.createMessage(durableMsg);

                message.getBodyBuffer().writeString("Hello world");

                producer.send(message);
                cnt++;
                timediff = ((System.currentTimeMillis() - time) / 1000);
                if (timediff >= 1) {
                    System.out.println("Producer tps :: " + cnt);
                    cnt = 0;
                    time = System.currentTimeMillis();
                }
            } catch (HornetQException ex) {
                Logger.getLogger(HQProducer.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
        try {
            session.close();
        } catch (HornetQException ex) {
            Logger.getLogger(HQProducer.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    public void setKillMe(boolean killme) {
        this.killme = killme;
    }

    private boolean queueExists(String qname) {
        boolean res = false;
        try {
            //ClientSession.BindingQuery bq = session.bindingQuery(SimpleString.toSimpleString(qname));
            QueueQuery queueQuery = session.queueQuery(SimpleString.toSimpleString(qname));
            if (queueQuery.isExists()) {
                res = true;
            }
        } catch (HornetQException ex) {
            res = false;
        }
        return res;
    }
}

此外，消费者代码为：

public class HQConsumer implements Runnable {

    private ClientSession session;
    private ClientConsumer consumer;
    private boolean killMe;

    public HQConsumer(String host, int port, String queueName, boolean browseOnly) {
        try {
            HashMap map = new HashMap();
            map.put("host", host);
            map.put("port", port);

            TransportConfiguration config = new TransportConfiguration(NettyConnectorFactory.class.getName(), map);

            ServerLocator locator = HornetQClient.createServerLocatorWithoutHA(config);

            ClientSessionFactory factory = locator.createSessionFactory();

            session = factory.createSession();

            session.start();

            consumer = session.createConsumer(queueName, "",0,-1,browseOnly);

            killMe = false;
        } catch (Exception ex) {
            Logger.getLogger(HQTestProducer.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    @Override
    public void run() {
        long time = System.currentTimeMillis();
        int cnt = 0;
        long timediff;
        while (!killMe) {
            try {
                ClientMessage msgReceived = consumer.receive();
                msgReceived.acknowledge();
                //System.out.println("message = " + msgReceived.getBodyBuffer().readString());
                cnt++;
                timediff = ((System.currentTimeMillis() - time) / 1000);
                if (timediff >= 1) {
                    System.out.println("ConSumer tps :: " + cnt);
                    cnt = 0;
                    time = System.currentTimeMillis();
                }
            } catch (HornetQException ex) {
                Logger.getLogger(HQConsumer.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
        try {
            session.close();
        } catch (HornetQException ex) {
            Logger.getLogger(HQConsumer.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    public void setKillMe(boolean killMe) {
        this.killMe = killMe;
    }
}

HornetQ服务器配置：：

<configuration xmlns="urn:hornetq"
               xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
               xsi:schemaLocation="urn:hornetq /schema/hornetq-configuration.xsd">

   <paging-directory>${data.dir:../data}/paging</paging-directory>

   <bindings-directory>${data.dir:../data}/bindings</bindings-directory>

   <journal-directory>${data.dir:../data}/journal</journal-directory>

   <journal-min-files>10</journal-min-files>

   <large-messages-directory>${data.dir:../data}/large-messages</large-messages-directory>

   <connectors>
      <connector name="netty">
         <factory-class>org.hornetq.core.remoting.impl.netty.NettyConnectorFactory</factory-class>
         <param key="host"  value="${hornetq.remoting.netty.host:localhost}"/>
         <param key="port"  value="${hornetq.remoting.netty.port:5445}"/>
      </connector>

      <connector name="netty-throughput">
         <factory-class>org.hornetq.core.remoting.impl.netty.NettyConnectorFactory</factory-class>
         <param key="host"  value="${hornetq.remoting.netty.host:localhost}"/>
         <param key="port"  value="${hornetq.remoting.netty.batch.port:5455}"/>
         <param key="batch-delay" value="50"/>
      </connector>
   </connectors>

   <acceptors>
      <acceptor name="netty">
         <factory-class>org.hornetq.core.remoting.impl.netty.NettyAcceptorFactory</factory-class>
         <param key="host"  value="${hornetq.remoting.netty.host:localhost}"/>
         <param key="port"  value="${hornetq.remoting.netty.port:5445}"/>
      </acceptor>

      <acceptor name="netty-throughput">
         <factory-class>org.hornetq.core.remoting.impl.netty.NettyAcceptorFactory</factory-class>
         <param key="host"  value="${hornetq.remoting.netty.host:localhost}"/>
         <param key="port"  value="${hornetq.remoting.netty.batch.port:5455}"/>
         <param key="batch-delay" value="50"/>
         <param key="direct-deliver" value="false"/>
      </acceptor>
   </acceptors>

   <security-settings>
      <security-setting match="#">
         <permission type="createNonDurableQueue" roles="guest"/>
         <permission type="deleteNonDurableQueue" roles="guest"/>
         <permission type="createDurableQueue" roles="guest"/>
         <permission type="deleteDurableQueue" roles="guest"/>
         <permission type="consume" roles="guest"/>
         <permission type="send" roles="guest"/>
      </security-setting>
   </security-settings>

   <address-settings>
      <!--default for catch all-->
      <address-setting match="#">
         <dead-letter-address>jms.queue.DLQ</dead-letter-address>
         <expiry-address>jms.queue.ExpiryQueue</expiry-address>
         <redelivery-delay>0</redelivery-delay>
         <max-size-bytes>10485760</max-size-bytes>       
         <message-counter-history-day-limit>10</message-counter-history-day-limit>
         <address-full-policy>BLOCK</address-full-policy>
      </address-setting>
   </address-settings>

</configuration>

${data.dir:../data}/paging
${data.dir:../data}/bindings
${data.dir:../data}/journal
10
${data.dir:../data}/大型消息
org.hornetq.core.remoting.impl.netty.NettyConnectorFactory
org.hornetq.core.remoting.impl.netty.NettyConnectorFactory
org.hornetq.core.remoting.impl.netty.NettyAcceptorFactory
org.hornetq.core.remoting.impl.netty.NettyAcceptorFactory
jms.queue.DLQ
jms.queue.ExpiryQueue
0
10485760
10
块

使用hornetq core api，您必须明确确认消息。我看不出你的测试结果

如果您没有确认，这就是您的消息被阻止的原因。我需要看看你的完整例子，给你一个完整的答案

另外：您应该使用：createSession（true，true，0）定义您的createSession

---

核心API具有批处理ACK的选项。您没有使用事务处理会话，因此在达到serverLocator上配置的ackBatchSize之前，不会向服务器发送ACK。这样，只要您在消息中调用acknowledge（），任何ack都将被发送到服务器

您当前使用的选项相当于具有特定DUPS_大小的JMS DUPS_OK

---

（与您反复讨论后，Post编辑了我的初始答案）

设置

ackbatchsize

帮助我解决了这个问题。。

---

感谢您的帮助

a/c，您需要在处理后确认邮件，您是否也这样做？

ClientMessage msgReceived=consumer.receive（）；msgReceived.acknowledge（）。。我承认core API可以选择批处理ACK。您没有使用事务处理会话，因此在达到serverLocator上配置的ackBatchSize之前，不会向服务器发送ACK。您应该使用以下命令定义createSession:createSession（true，true，0）；在这个位置上，只要您在消息中调用acknowledge（），您没有返回到这个线程，任何ack都将被发送到服务器。所以我假设你的问题得到了解决？有同样的问题，这似乎解决了它。我显然不理解createSession的java文档（boolean autoCommitSends、boolean autocommitks、intAckBatchSize）。autoCommitSends和autoCommitAcks与确认部分无关，只与提交有关，对吗？@AlperAkture不确定您的问题是否得到了回答，但鉴于确认的名称，其中至少有一个与确认有关。