[英]ActiveMQ Artemis cluster does not redistribute messages after one instance crash
我在 Kubernetes 中有一組 Artemis，其中包含 3 組主/從：
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
我正在使用 Spring 啟動 JmsListener 來使用發送到通配符隊列的消息，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());
}
}
有 20 條消息發送到隊列，master-1 是傳遞節點。 當 5 條消息被消耗時，我殺死了 master-1 節點以模擬崩潰，我看到 slave-1 開始運行，然后在 Kubernetes 重新生成它之后返回給 master-1。 偵聽器拋出連接丟失的JMSException並嘗試重新連接。 然后我看到它成功連接到master-0（我看到創建的隊列和消費者計數> 0）。 然而，master-0 上的隊列是空的，而 master-1 中的同一個隊列仍然有 15 條消息，並且沒有附加消費者。 我等了一會兒，但 15 條消息從未送達。 我不確定為什么沒有重新分配。
master-1上的通配符隊列在崩潰后重新上線時的屬性是這樣的（我手動替換了字段accessToken的值，因為它有敏感信息）：
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上的通配符隊列的屬性是這樣的：
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
使用的 Artemis 版本是 2.17.0。 這是我在 master-0 broker.xml中的集群配置。 除了connector-ref更改為匹配代理之外，其他代理的配置相同：
<?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>
從 Stack Overflow 的另一個回答中，我了解到我的高可用性拓撲是多余的，我計划移除從屬設備。 但是，我不認為奴隸是重新分配消息不起作用的原因。 是否有我缺少處理 Artemis 節點崩潰的配置？
更新 1：正如賈斯汀建議的那樣，我嘗試在沒有 HA 的情況下使用由 2 個 Artemis 節點組成的集群。
activemq-artemis-master-0 1/1 Running 0 27m
activemq-artemis-master-1 1/1 Running 0 74s
下面是2個artemis節點的broker.xml。 它們之間唯一不同的是節點名稱和日志緩沖區超時：
<?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>
使用此設置，我仍然得到相同的結果，在 artemis 節點崩潰和恢復后，剩余的消息沒有移動到另一個節點。
更新 2 我嘗試按照賈斯汀的建議使用非通配符隊列，但仍然得到相同的行為。 我注意到的一個不同之處是，如果我使用非通配符隊列，消費者計數僅為 1，而在通配符隊列的情況下為 3。這是崩潰后舊隊列的屬性
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
這是新隊列的屬性
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
我已經使用redistribution-delay為0的非通配符隊列僅使用 2 個節點進行了簡化配置，並且我重現了您在本地機器上看到的行為（即沒有 Kubernetes）。 我相信我明白為什么會出現這種行為，但是為了理解當前的行為，您首先必須了解重新分配的工作原理。
在集群中，每次創建消費者時，創建消費者的節點都會通知集群中的每個其他節點有關消費者的信息。 如果集群中的其他節點在其相應的隊列中有消息但沒有任何消費者，那么這些其他節點將它們的消息重新分發到具有消費者的節點（假設message-load-balancing為ON_DEMAND並且redistribution-delay為 >= 0 )。
但是，在您的情況下，當在另一個節點上創建消費者時，帶有消息的節點實際上已關閉，因此它實際上從未收到有關消費者的通知。 因此，一旦該節點重新啟動，它就不會知道其他消費者，也不會重新分發其消息。
我看到你已經打開了ARTEMIS-3321來增強代理來處理這種情況。 但是，這需要時間來開發和發布（假設更改已獲批准）。 同時，我對您的建議是配置文檔中討論的客戶端重新連接，例如：
tcp://127.0.0.1:61616?reconnectAttempts=30
鑒於默認的retryInterval為2000毫秒，這將使客戶端最初連接到的代理有 1 分鍾的時間恢復，然后客戶端放棄嘗試重新連接並引發異常，此時應用程序可以完全重新初始化其連接它現在正在做。
由於您使用的是 Spring 引導，請務必使用 2.5.0 版本，因為它包含此更改，允許您指定代理 URL 而不僅僅是主機和端口。
最后，請記住，正常關閉節點會短路客戶端的重新連接並觸發您的應用程序重新初始化連接，這不是我們想要的。 確保不優雅地終止節點（例如使用kill -9 <pid> ）。
ActiveMQ Artemis 消費者在崩潰后沒有重新連接到同一個集群節點
[英]ActiveMQ Artemis consumer does not reconnect to the same cluster node after crash
如果 ActiveMQ Artemis 集群是 Kubernetes StatefulSet，HA 真的有用嗎？
[英]Is HA really useful if ActiveMQ Artemis cluster is a Kubernetes StatefulSet?
如何在 ActiveMQ Artemis 中使用發現組形成 3 個節點的對稱集群？
[英]How to form a symmetric cluster of 3 nodes with discovery-groups in ActiveMQ Artemis?
應該保留哪些目錄以從運行在 K8s 環境中的 ActiveMQ Artemis 集群中的故障節點重新創建實時節點（pod）？
[英]What directories should be persisted to recreate a live-node(pod) back from a failed one in an ActiveMQ Artemis cluster running in a K8s environment?
如果 ActiveMQ Artemis 集群在 Kubernetes 環境中運行，備份節點是否需要 ON_DEMAND 負載平衡才能運行？
[英]If ActiveMQ Artemis cluster is running in a Kubernetes environment, is the ON_DEMAND load-balancing required for a backup-node to operate?
ActiveMQ“經典”和 ActiveMQ Artemis 與 Prometheus 的集成
[英]ActiveMQ "Classic" and ActiveMQ Artemis integration with Prometheus
聲明:本站的技術帖子網頁，遵循CC BY-SA 4.0協議，如果您需要轉載，請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.