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问题：

ActiveMQ Artemis集群在实例崩溃后不会重新分发消息

燕玉堂
2023-03-14

我在Kubernetes有一个Artemis集群，有3组主/从：

activemq-artemis-master-0                               1/1     Running
activemq-artemis-master-1                               1/1     Running
activemq-artemis-master-2                               1/1     Running
activemq-artemis-slave-0                                0/1     Running
activemq-artemis-slave-1                                0/1     Running
activemq-artemis-slave-2                                0/1     Running

我使用Spring boot JmsListener来使用发送到通配符队列的消息，如下所示。

    @Component
    @Log4j2
    public class QueueListener {
      @Autowired
      private ListenerControl listenerControl;
    
      @JmsListener(id = "queueListener0", destination = "QUEUE.service2.*.*.*.notification")
      public void add(String message, @Header("sentBy") String sentBy, @Header("sentFrom") String sentFrom, @Header("sentAt") Long sentAt) throws InterruptedException {
    
    
        log.info("---QUEUE[notification]:  message={}, sentBy={}, sentFrom={}, sentAt={}",
                    message, sentBy, sentFrom, sentAt);
    
        TimeUnit.MILLISECONDS.sleep(listenerControl.getDuration());
      }
    }

Attribute   Value
Acknowledge attempts    0
Address QUEUE.service2.*.*.*.notification
Configuration managed   false
Consumer count  0
Consumers before dispatch   0
Dead letter address DLQ
Delay before dispatch   -1
Delivering count    0
Delivering size 0
Durable true
Durable delivering count    0
Durable delivering size 0
Durable message count   15
Durable persistent size 47705
Durable scheduled count 0
Durable scheduled size  0
Enabled true
Exclusive   false
Expiry address  ExpiryQueue
Filter  
First message age   523996
First message as json   [{"JMSType":"service2","address":"QUEUE.service2.tech-drive2.188100000059.thai.notification","messageID":68026,"sentAt":1621957145988,"accessToken":"REMOVED","type":3,"priority":4,"userID":"ID:56c7b509-bd6f-11eb-a348-de0dacf99072","_AMQ_GROUP_ID":"tech-drive2-188100000059-thai","sentBy":"user@email.com","durable":true,"JMSReplyTo":"queue://QUEUE.service2.tech-drive2.188100000059.thai.notification","__AMQ_CID":"e4469ea3-bd62-11eb-a348-de0dacf99072","sentFrom":"service2","originalDestination":"QUEUE.service2.tech-drive2.188100000059.thai.notification","_AMQ_ROUTING_TYPE":1,"JMSCorrelationID":"c329c733-1170-440a-9080-992a009d87a9","expiration":0,"timestamp":1621957145988}]
First message timestamp 1621957145988
Group buckets   -1
Group count 0
Group first key 
Group rebalance false
Group rebalance pause dispatch  false
Id  119
Last value  false
Last value key  
Max consumers   -1
Message count   15
Messages acknowledged   0
Messages added  15
Messages expired    0
Messages killed 0
Name    QUEUE.service2.*.*.*.notification
Object Name org.apache.activemq.artemis:broker="activemq-artemis-master-1",component=addresses,address="QUEUE.service2.\*.\*.\*.notification",subcomponent=queues,routing-type="anycast",queue="QUEUE.service2.\*.\*.\*.notification"
Paused  false
Persistent size 47705
Prepared transaction message count  0
Purge on no consumers   false
Retroactive resource    false
Ring size   -1
Routing type    ANYCAST
Scheduled count 0
Scheduled size  0
Temporary   false
User    f7bcdaed-8c0c-4bb5-ad03-ec06382cb557

master-0上通配符队列的属性如下所示：

Attribute   Value
Acknowledge attempts    0
Address QUEUE.service2.*.*.*.notification
Configuration managed   false
Consumer count  3
Consumers before dispatch   0
Dead letter address DLQ
Delay before dispatch   -1
Delivering count    0
Delivering size 0
Durable true
Durable delivering count    0
Durable delivering size 0
Durable message count   0
Durable persistent size 0
Durable scheduled count 0
Durable scheduled size  0
Enabled true
Exclusive   false
Expiry address  ExpiryQueue
Filter  
First message age   
First message as json   [{}]
First message timestamp 
Group buckets   -1
Group count 0
Group first key 
Group rebalance false
Group rebalance pause dispatch  false
Id  119
Last value  false
Last value key  
Max consumers   -1
Message count   0
Messages acknowledged   0
Messages added  0
Messages expired    0
Messages killed 0
Name    QUEUE.service2.*.*.*.notification
Object Name org.apache.activemq.artemis:broker="activemq-artemis-master-0",component=addresses,address="QUEUE.service2.\*.\*.\*.notification",subcomponent=queues,routing-type="anycast",queue="QUEUE.service2.\*.\*.\*.notification"
Paused  false
Persistent size 0
Prepared transaction message count  0
Purge on no consumers   false
Retroactive resource    false
Ring size   -1
Routing type    ANYCAST
Scheduled count 0
Scheduled size  0
Temporary   false
User    f7bcdaed-8c0c-4bb5-ad03-ec06382cb557

目前使用的Artemis版本是2.17.0。下面是我在master-0broker.xml中的集群配置。除了连接器-ref被更改以匹配代理之外，其他代理的配置是相同的：

<?xml version="1.0"?>
<configuration xmlns="urn:activemq" xmlns:xi="http://www.w3.org/2001/XInclude" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:activemq /schema/artemis-configuration.xsd">
  <core xmlns="urn:activemq:core" xsi:schemaLocation="urn:activemq:core ">
    <name>activemq-artemis-master-0</name>
    <persistence-enabled>true</persistence-enabled>
    <journal-type>ASYNCIO</journal-type>
    <paging-directory>data/paging</paging-directory>
    <bindings-directory>data/bindings</bindings-directory>
    <journal-directory>data/journal</journal-directory>
    <large-messages-directory>data/large-messages</large-messages-directory>
    <journal-datasync>true</journal-datasync>
    <journal-min-files>2</journal-min-files>
    <journal-pool-files>10</journal-pool-files>
    <journal-device-block-size>4096</journal-device-block-size>
    <journal-file-size>10M</journal-file-size>
    <journal-buffer-timeout>100000</journal-buffer-timeout>
    <journal-max-io>4096</journal-max-io>
    <disk-scan-period>5000</disk-scan-period>
    <max-disk-usage>90</max-disk-usage>
    <critical-analyzer>true</critical-analyzer>
    <critical-analyzer-timeout>120000</critical-analyzer-timeout>
    <critical-analyzer-check-period>60000</critical-analyzer-check-period>
    <critical-analyzer-policy>HALT</critical-analyzer-policy>
    <page-sync-timeout>2244000</page-sync-timeout>
    <acceptors>
      <acceptor name="artemis">tcp://0.0.0.0:61616?tcpSendBufferSize=1048576;tcpReceiveBufferSize=1048576;amqpMinLargeMessageSize=102400;protocols=CORE,AMQP,STOMP,HORNETQ,MQTT,OPENWIRE;useEpoll=true;amqpCredits=1000;amqpLowCredits=300;amqpDuplicateDetection=true</acceptor>
      <acceptor name="amqp">tcp://0.0.0.0:5672?tcpSendBufferSize=1048576;tcpReceiveBufferSize=1048576;protocols=AMQP;useEpoll=true;amqpCredits=1000;amqpLowCredits=300;amqpMinLargeMessageSize=102400;amqpDuplicateDetection=true</acceptor>
      <acceptor name="stomp">tcp://0.0.0.0:61613?tcpSendBufferSize=1048576;tcpReceiveBufferSize=1048576;protocols=STOMP;useEpoll=true</acceptor>
      <acceptor name="hornetq">tcp://0.0.0.0:5445?anycastPrefix=jms.queue.;multicastPrefix=jms.topic.;protocols=HORNETQ,STOMP;useEpoll=true</acceptor>
      <acceptor name="mqtt">tcp://0.0.0.0:1883?tcpSendBufferSize=1048576;tcpReceiveBufferSize=1048576;protocols=MQTT;useEpoll=true</acceptor>
    </acceptors>
    <security-settings>
      <security-setting match="#">
        <permission type="createNonDurableQueue" roles="amq"/>
        <permission type="deleteNonDurableQueue" roles="amq"/>
        <permission type="createDurableQueue" roles="amq"/>
        <permission type="deleteDurableQueue" roles="amq"/>
        <permission type="createAddress" roles="amq"/>
        <permission type="deleteAddress" roles="amq"/>
        <permission type="consume" roles="amq"/>
        <permission type="browse" roles="amq"/>
        <permission type="send" roles="amq"/>
        <permission type="manage" roles="amq"/>
      </security-setting>
    </security-settings>
    <address-settings>
      <address-setting match="activemq.management#">
        <dead-letter-address>DLQ</dead-letter-address>
        <expiry-address>ExpiryQueue</expiry-address>
        <redelivery-delay>0</redelivery-delay>
        <!-- with -1 only the global-max-size is in use for limiting -->
        <max-size-bytes>-1</max-size-bytes>
        <message-counter-history-day-limit>10</message-counter-history-day-limit>
        <address-full-policy>PAGE</address-full-policy>
        <auto-create-queues>true</auto-create-queues>
        <auto-create-addresses>true</auto-create-addresses>
        <auto-create-jms-queues>true</auto-create-jms-queues>
        <auto-create-jms-topics>true</auto-create-jms-topics>
      </address-setting>
      <address-setting match="#">
        <dead-letter-address>DLQ</dead-letter-address>
        <expiry-address>ExpiryQueue</expiry-address>
        <redistribution-delay>60000</redistribution-delay>
        <redelivery-delay>0</redelivery-delay>
        <max-size-bytes>-1</max-size-bytes>
        <message-counter-history-day-limit>10</message-counter-history-day-limit>
        <address-full-policy>PAGE</address-full-policy>
        <auto-create-queues>true</auto-create-queues>
        <auto-create-addresses>true</auto-create-addresses>
        <auto-create-jms-queues>true</auto-create-jms-queues>
        <auto-create-jms-topics>true</auto-create-jms-topics>
      </address-setting>
    </address-settings>
    <addresses>
      <address name="DLQ">
        <anycast>
          <queue name="DLQ"/>
        </anycast>
      </address>
      <address name="ExpiryQueue">
        <anycast>
          <queue name="ExpiryQueue"/>
        </anycast>
      </address>
    </addresses>
    <cluster-user>clusterUser</cluster-user>
    <cluster-password>aShortclusterPassword</cluster-password>
    <connectors>
      <connector name="activemq-artemis-master-0">tcp://activemq-artemis-master-0.activemq-artemis-master.svc.cluster.local:61616</connector>
      <connector name="activemq-artemis-slave-0">tcp://activemq-artemis-slave-0.activemq-artemis-slave.svc.cluster.local:61616</connector>
      <connector name="activemq-artemis-master-1">tcp://activemq-artemis-master-1.activemq-artemis-master.svc.cluster.local:61616</connector>
      <connector name="activemq-artemis-slave-1">tcp://activemq-artemis-slave-1.activemq-artemis-slave.svc.cluster.local:61616</connector>
      <connector name="activemq-artemis-master-2">tcp://activemq-artemis-master-2.activemq-artemis-master.svc.cluster.local:61616</connector>
      <connector name="activemq-artemis-slave-2">tcp://activemq-artemis-slave-2.activemq-artemis-slave.svc.cluster.local:61616</connector>
    </connectors>
    <cluster-connections>
      <cluster-connection name="activemq-artemis">
        <connector-ref>activemq-artemis-master-0</connector-ref>
        <retry-interval>500</retry-interval>
        <retry-interval-multiplier>1.1</retry-interval-multiplier>
        <max-retry-interval>5000</max-retry-interval>
        <initial-connect-attempts>-1</initial-connect-attempts>
        <reconnect-attempts>-1</reconnect-attempts>
        <message-load-balancing>ON_DEMAND</message-load-balancing>
        <max-hops>1</max-hops>
        <!-- scale-down>true</scale-down -->
        <static-connectors>
          <connector-ref>activemq-artemis-master-0</connector-ref>
          <connector-ref>activemq-artemis-slave-0</connector-ref>
          <connector-ref>activemq-artemis-master-1</connector-ref>
          <connector-ref>activemq-artemis-slave-1</connector-ref>
          <connector-ref>activemq-artemis-master-2</connector-ref>
          <connector-ref>activemq-artemis-slave-2</connector-ref>
        </static-connectors>
      </cluster-connection>
    </cluster-connections>
    <ha-policy>
      <replication>
        <master>
          <group-name>activemq-artemis-0</group-name>
          <quorum-vote-wait>12</quorum-vote-wait>
          <vote-on-replication-failure>true</vote-on-replication-failure>
          <!--we need this for auto failback-->
          <check-for-live-server>true</check-for-live-server>
        </master>
      </replication>
    </ha-policy>
  </core>
  <core xmlns="urn:activemq:core">
    <jmx-management-enabled>true</jmx-management-enabled>
  </core>
</configuration>

从堆栈溢出的另一个答案中，我了解到我的高可用性拓扑是冗余的，我计划删除从属。然而，我不认为奴隶是重新分发消息不起作用的原因。是否缺少处理Artemis节点崩溃的配置？

activemq-artemis-master-0                              1/1     Running            0          27m
activemq-artemis-master-1                              1/1     Running            0          74s

<?xml version="1.0"?>

<configuration xmlns="urn:activemq" xmlns:xi="http://www.w3.org/2001/XInclude" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:activemq /schema/artemis-configuration.xsd">
  <core xmlns="urn:activemq:core" xsi:schemaLocation="urn:activemq:core ">
    <name>activemq-artemis-master-0</name>
    <persistence-enabled>true</persistence-enabled>
    <journal-type>ASYNCIO</journal-type>
    <paging-directory>data/paging</paging-directory>
    <bindings-directory>data/bindings</bindings-directory>
    <journal-directory>data/journal</journal-directory>
    <large-messages-directory>data/large-messages</large-messages-directory>
    <journal-datasync>true</journal-datasync>
    <journal-min-files>2</journal-min-files>
    <journal-pool-files>10</journal-pool-files>
    <journal-device-block-size>4096</journal-device-block-size>
    <journal-file-size>10M</journal-file-size>
    <journal-buffer-timeout>100000</journal-buffer-timeout>
    <journal-max-io>4096</journal-max-io>
    <disk-scan-period>5000</disk-scan-period>
    <max-disk-usage>90</max-disk-usage>
    <critical-analyzer>true</critical-analyzer>
    <critical-analyzer-timeout>120000</critical-analyzer-timeout>
    <critical-analyzer-check-period>60000</critical-analyzer-check-period>
    <critical-analyzer-policy>HALT</critical-analyzer-policy>
    <page-sync-timeout>2244000</page-sync-timeout>
    <acceptors>
      <acceptor name="artemis">tcp://0.0.0.0:61616?tcpSendBufferSize=1048576;tcpReceiveBufferSize=1048576;amqpMinLargeMessageSize=102400;protocols=CORE,AMQP,STOMP,HORNETQ,MQTT,OPENWIRE;useEpoll=true;amqpCredits=1000;amqpLowCredits=300;amqpDuplicateDetection=true</acceptor>
      <acceptor name="amqp">tcp://0.0.0.0:5672?tcpSendBufferSize=1048576;tcpReceiveBufferSize=1048576;protocols=AMQP;useEpoll=true;amqpCredits=1000;amqpLowCredits=300;amqpMinLargeMessageSize=102400;amqpDuplicateDetection=true</acceptor>
      <acceptor name="stomp">tcp://0.0.0.0:61613?tcpSendBufferSize=1048576;tcpReceiveBufferSize=1048576;protocols=STOMP;useEpoll=true</acceptor>
      <acceptor name="hornetq">tcp://0.0.0.0:5445?anycastPrefix=jms.queue.;multicastPrefix=jms.topic.;protocols=HORNETQ,STOMP;useEpoll=true</acceptor>
      <acceptor name="mqtt">tcp://0.0.0.0:1883?tcpSendBufferSize=1048576;tcpReceiveBufferSize=1048576;protocols=MQTT;useEpoll=true</acceptor>
    </acceptors>
    <security-settings>
      <security-setting match="#">
        <permission type="createNonDurableQueue" roles="amq"/>
        <permission type="deleteNonDurableQueue" roles="amq"/>
        <permission type="createDurableQueue" roles="amq"/>
        <permission type="deleteDurableQueue" roles="amq"/>
        <permission type="createAddress" roles="amq"/>
        <permission type="deleteAddress" roles="amq"/>
        <permission type="consume" roles="amq"/>
        <permission type="browse" roles="amq"/>
        <permission type="send" roles="amq"/>
        <permission type="manage" roles="amq"/>
      </security-setting>
    </security-settings>
    <cluster-user>ClusterUser</cluster-user>
    <cluster-password>longClusterPassword</cluster-password>
    <connectors>
      <connector name="activemq-artemis-master-0">tcp://activemq-artemis-master-0.activemq-artemis-master.ncp-stack-testing.svc.cluster.local:61616</connector>
      <connector name="activemq-artemis-master-1">tcp://activemq-artemis-master-1.activemq-artemis-master.ncp-stack-testing.svc.cluster.local:61616</connector>
    </connectors>
    <cluster-connections>
      <cluster-connection name="activemq-artemis">
        <connector-ref>activemq-artemis-master-0</connector-ref>
        <retry-interval>500</retry-interval>
        <retry-interval-multiplier>1.1</retry-interval-multiplier>
        <max-retry-interval>5000</max-retry-interval>
        <initial-connect-attempts>-1</initial-connect-attempts>
        <reconnect-attempts>-1</reconnect-attempts>
        <use-duplicate-detection>true</use-duplicate-detection>
        <message-load-balancing>ON_DEMAND</message-load-balancing>
        <max-hops>1</max-hops>
        <static-connectors>
          <connector-ref>activemq-artemis-master-0</connector-ref>
          <connector-ref>activemq-artemis-master-1</connector-ref>
        </static-connectors>
      </cluster-connection>
    </cluster-connections>
    <address-settings>
      <address-setting match="activemq.management#">
        <dead-letter-address>DLQ</dead-letter-address>
        <expiry-address>ExpiryQueue</expiry-address>
        <redelivery-delay>0</redelivery-delay>
        <max-size-bytes>-1</max-size-bytes>
        <message-counter-history-day-limit>10</message-counter-history-day-limit>
        <address-full-policy>PAGE</address-full-policy>
        <auto-create-queues>true</auto-create-queues>
        <auto-create-addresses>true</auto-create-addresses>
        <auto-create-jms-queues>true</auto-create-jms-queues>
        <auto-create-jms-topics>true</auto-create-jms-topics>
      </address-setting>
      <address-setting match="#">
        <dead-letter-address>DLQ</dead-letter-address>
        <expiry-address>ExpiryQueue</expiry-address>
        <redistribution-delay>60000</redistribution-delay>
        <redelivery-delay>0</redelivery-delay>
        <max-size-bytes>-1</max-size-bytes>
        <message-counter-history-day-limit>10</message-counter-history-day-limit>
        <address-full-policy>PAGE</address-full-policy>
        <auto-create-queues>true</auto-create-queues>
        <auto-create-addresses>true</auto-create-addresses>
        <auto-create-jms-queues>true</auto-create-jms-queues>
        <auto-create-jms-topics>true</auto-create-jms-topics>
      </address-setting>
    </address-settings>
    <addresses>
      <address name="DLQ">
        <anycast>
          <queue name="DLQ"/>
        </anycast>
      </address>
      <address name="ExpiryQueue">
        <anycast>
          <queue name="ExpiryQueue"/>
        </anycast>
      </address>
    </addresses>
  </core>
  <core xmlns="urn:activemq:core">
    <jmx-management-enabled>true</jmx-management-enabled>
  </core>
</configuration>

Acknowledge attempts    0
Address QUEUE.service2.tech-drive2.188100000059.thai.notification
Configuration managed   false
Consumer count  0
Consumers before dispatch   0
Dead letter address DLQ
Delay before dispatch   -1
Delivering count    0
Delivering size 0
Durable true
Durable delivering count    0
Durable delivering size 0
Durable message count   15
Durable persistent size 102245
Durable scheduled count 0
Durable scheduled size  0
Enabled true
Exclusive   false
Expiry address  ExpiryQueue
Filter  
First message age   840031
First message as json   [{"JMSType":"service2","address":"QUEUE.service2.tech-drive2.188100000059.thai.notification","messageID":8739,"sentAt":1621969900922,"accessToken":"DONOTDISPLAY","type":3,"priority":4,"userID":"ID:09502dc0-bd8d-11eb-b75c-c6609f1332c9","_AMQ_GROUP_ID":"tech-drive2-188100000059-thai","sentBy":"user@email.com","durable":true,"JMSReplyTo":"queue://QUEUE.service2.tech-drive2.188100000059.thai.notification","__AMQ_CID":"c292b418-bd8b-11eb-b75c-c6609f1332c9","sentFrom":"service2","originalDestination":"QUEUE.service2.tech-drive2.188100000059.thai.notification","_AMQ_ROUTING_TYPE":1,"JMSCorrelationID":"90b783d0-d9cc-4188-9c9e-3453786b2105","expiration":0,"timestamp":1621969900922}]
First message timestamp 1621969900922
Group buckets   -1
Group count 0
Group first key 
Group rebalance false
Group rebalance pause dispatch  false
Id  606
Last value  false
Last value key  
Max consumers   -1
Message count   15
Messages acknowledged   0
Messages added  15
Messages expired    0
Messages killed 0
Name    QUEUE.service2.tech-drive2.188100000059.thai.notification
Object Name org.apache.activemq.artemis:broker="activemq-artemis-master-0",component=addresses,address="QUEUE.service2.tech-drive2.188100000059.thai.notification",subcomponent=queues,routing-type="anycast",queue="QUEUE.service2.tech-drive2.188100000059.thai.notification"
Paused  false
Persistent size 102245
Prepared transaction message count  0
Purge on no consumers   false
Retroactive resource    false
Ring size   -1
Routing type    ANYCAST
Scheduled count 0
Scheduled size  0
Temporary   false
User    6e25e08b-9587-40a3-b7e9-146360539258

下面是新队列的属性

Attribute   Value
Acknowledge attempts    0
Address QUEUE.service2.tech-drive2.188100000059.thai.notification
Configuration managed   false
Consumer count  1
Consumers before dispatch   0
Dead letter address DLQ
Delay before dispatch   -1
Delivering count    0
Delivering size 0
Durable true
Durable delivering count    0
Durable delivering size 0
Durable message count   0
Durable persistent size 0
Durable scheduled count 0
Durable scheduled size  0
Enabled true
Exclusive   false
Expiry address  ExpiryQueue
Filter  
First message age   
First message as json   [{}]
First message timestamp 
Group buckets   -1
Group count 0
Group first key 
Group rebalance false
Group rebalance pause dispatch  false
Id  866
Last value  false
Last value key  
Max consumers   -1
Message count   0
Messages acknowledged   0
Messages added  0
Messages expired    0
Messages killed 0
Name    QUEUE.service2.tech-drive2.188100000059.thai.notification
Object Name org.apache.activemq.artemis:broker="activemq-artemis-master-1",component=addresses,address="QUEUE.service2.tech-drive2.188100000059.thai.notification",subcomponent=queues,routing-type="anycast",queue="QUEUE.service2.tech-drive2.188100000059.thai.notification"
Paused  false
Persistent size 0
Prepared transaction message count  0
Purge on no consumers   false
Retroactive resource    false
Ring size   -1
Routing type    ANYCAST
Scheduled count 0
Scheduled size  0
Temporary   false
User    6e25e08b-9587-40a3-b7e9-146360539258

共有1个答案

狄灵均
2023-03-14

我使用了您的简化配置，只有2个节点，使用了redistribution-delay为0的非通配符队列，并复制了您在本地计算机上看到的行为（即没有Kubernetes）。我相信我明白了为什么这种行为是这样的，但为了理解当前的行为，你首先必须理解重新分配是如何工作的。

在集群中，每次创建消费者时，创建消费者的节点都会通知集群中的每个其他节点关于消费者的情况。如果集群中的其他节点在其对应的队列中有消息，但没有任何使用者，那么这些其他节点将它们的消息重新分发到具有使用者的节点（假设消息负载平衡是on_demand，redistribution-delay是>=0)。

然而，在您的例子中，当使用者在另一个节点上创建时，带有消息的节点实际上是关闭的，因此它实际上从未接收到关于使用者的通知。因此，一旦该节点重新启动，它就不知道其他使用者，也不会重新分发其消息。

我看到你已经打开了ARTEMIS-3321来增强经纪人来处理这种情况。然而，这将需要时间来开发和发布（假设更改得到批准）。同时，我对您的建议是配置您的客户端重新连接，这在文档中进行了讨论，例如：

tcp://127.0.0.1:61616?reconnectAttempts=30

假定默认RetryInterval为2000毫秒，在客户端放弃尝试重新连接并引发异常之前，客户端最初连接到的代理将有1分钟时间恢复，此时应用程序可以像当前一样完全重新初始化其连接。

因为您使用的是Spring Boot，所以一定要使用2.5.0版本，因为它包含了这一更改，这将允许您指定代理URL，而不仅仅是主机和端口。

最后，请记住，优雅地关闭节点将使客户端的重新连接短路，并触发应用程序重新初始化连接，这不是我们在这里想要的。一定要不优雅地杀死节点（例如使用kill-9 )。

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