Hi there,
After days trying & furious googling here is one last roll of the
demonstrable clustering dice.
Running
apache-artemis-2.5.0/examples/features/clustered/clustered-static-discovery
with mvn verify works just fine, which is great.
When trying to duplicate this on AWS EC2 (in a VPC of course) I quite simply
cannot get that sample working starting with server0 and server1 only
(adding more servers does not seem to change anything).
If anyone has a working configuration to share then I would be eternally
grateful, or just tell me to give up trying if I'm flogging a dead horse
(not sure).
*[ec2-user@server0 ~]$ cat server0/etc/broker.xml*
<?xml version='1.0'?>
<configuration xmlns="urn:activemq"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xmlns:xi="http://www.w3.org/2001/XInclude";
xsi:schemaLocation="urn:activemq
/schema/artemis-configuration.xsd">
<core xmlns="urn:activemq:core"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="urn:activemq:core ">
<name>server0.makaro.io</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-file-size>10M</journal-file-size>
<connectors>
<connector
name="server1-connector">tcp://172.31.6.91:61616</connector>
<connector name="artemis">tcp://server0.makaro.io:61616</connector>
</connectors>
<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>
<acceptors>
<acceptor
name="artemis">tcp://0.0.0.0:61616?tcpSendBufferSize=1048576;tcpReceiveBufferSize=1048576;protocols=CORE,AMQP,STOMP,HORNETQ,MQTT,OPENWIRE;useEpoll=true;amqpCredits=1000;amqpLowCredits=300</acceptor>
<acceptor
name="amqp">tcp://0.0.0.0:5672?tcpSendBufferSize=1048576;tcpReceiveBufferSize=1048576;protocols=AMQP;useEpoll=true;amqpCredits=1000;amqpMinCredits=300</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>
<cluster-user>foo</cluster-user>
<cluster-password>bar</cluster-password>
<cluster-connections>
<cluster-connection name="my-cluster">
<connector-ref>artemis</connector-ref>
<retry-interval>500</retry-interval>
<use-duplicate-detection>true</use-duplicate-detection>
<message-load-balancing>STRICT</message-load-balancing>
<max-hops>1</max-hops>
<static-connectors>
<connector-ref>server1-connector</connector-ref>
</static-connectors>
</cluster-connection>
</cluster-connections>
<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="createAddress" roles="guest"/>
<permission type="deleteAddress" roles="guest"/>
<permission type="consume" roles="guest"/>
<permission type="browse" roles="guest"/>
<permission type="send" roles="guest"/>
<permission type="manage" roles="guest"/>
</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>
<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>
<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>
<address name="exampleQueue">
<anycast>
<queue name="exampleQueue"/>
</anycast>
</address>
</addresses>
</core>
</configuration>
*[ec2-user@server1 ~]$ cat server1/etc/broker.xml*
<?xml version='1.0'?>
<configuration xmlns="urn:activemq"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xmlns:xi="http://www.w3.org/2001/XInclude";
xsi:schemaLocation="urn:activemq
/schema/artemis-configuration.xsd">
<core xmlns="urn:activemq:core"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="urn:activemq:core ">
<name>server1.makaro.io</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-file-size>10M</journal-file-size>
<connectors>
<connector
name="server0-connector">tcp://172.31.14.235:61616</connector>
<connector name="artemis">tcp://server1.makaro.io:61616</connector>
</connectors>
<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>
<acceptors>
<acceptor
name="artemis">tcp://0.0.0.0:61616?tcpSendBufferSize=1048576;tcpReceiveBufferSize=1048576;protocols=CORE,AMQP,STOMP,HORNETQ,MQTT,OPENWIRE;useEpoll=true;amqpCredits=1000;amqpLowCredits=300</acceptor>
<acceptor
name="amqp">tcp://0.0.0.0:5672?tcpSendBufferSize=1048576;tcpReceiveBufferSize=1048576;protocols=AMQP;useEpoll=true;amqpCredits=1000;amqpMinCredits=300</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>
<cluster-user>foo</cluster-user>
<cluster-password>bar</cluster-password>
<cluster-connections>
<cluster-connection name="my-cluster">
<connector-ref>artemis</connector-ref>
<retry-interval>500</retry-interval>
<use-duplicate-detection>true</use-duplicate-detection>
<message-load-balancing>STRICT</message-load-balancing>
<max-hops>1</max-hops>
<static-connectors>
<connector-ref>server0-connector</connector-ref>
</static-connectors>
</cluster-connection>
</cluster-connections>
<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="createAddress" roles="guest"/>
<permission type="deleteAddress" roles="guest"/>
<permission type="consume" roles="guest"/>
<permission type="browse" roles="guest"/>
<permission type="send" roles="guest"/>
<permission type="manage" roles="guest"/>
</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>
<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>
<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>
<address name="exampleQueue">
<anycast>
<queue name="exampleQueue"/>
</anycast>
</address>
</addresses>
</core>
</configuration>
The actual client code is exactly as its found in
StaticClusteredQueueExample and here is the pertinent config change:
/// Step 2. Use direct instantiation (or JNDI if you like)
Queue queue = ActiveMQJMSClient.createQueue("exampleQueue");
// Step 3. new JMS Connection Factory object from JNDI on server 3
ConnectionFactory cf0 = new
ActiveMQConnectionFactory("tcp://server0.makaro.io:61616");/
The problem is that when running the sample code round-robin load balancing
never happens (I only get messages from server0), and I'm not sure why.
I'm getting out my debugger now, just thought it would be easier than this.
Thanks,
Nico
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