Broker.xml (host1) and host2 just the port number changes to 61616 and slave as configuration. In reference with Apache Artemis client fail over discovery
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<configuration xmlns="urn:activemq" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:activemq /schema/artemis-configuration.xsd">
<core xmlns="urn:activemq:core">
<bindings-directory>./data/bindings</bindings-directory>
<journal-directory>./data/journal</journal-directory>
<large-messages-directory>./data/largemessages</large-messages-directory>
<paging-directory>./data/paging</paging-directory>
<!-- Connectors -->
<connectors>
<connector name="netty-connector">tcp://10.64.60.100:61617</connector><!-- direct ip addres of host myhost1 -->
<connector name="broker2-connector">tcp://myhost2:61616</connector> <!-- ip 10.64.60.101 <- mocked up ip for security reasons -->
</connectors>
<!-- Acceptors -->
<acceptors>
<acceptor name="amqp">tcp://0.0.0.0:61617?amqpIdleTimeout=0;tcpSendBufferSize=1048576;tcpReceiveBufferSize=1048576;protocols=CORE,AMQP;useEpoll=true</acceptor>
</acceptors>
<ha-policy>
<replication>
<master/>
</replication>
</ha-policy>
<cluster-connections>
<cluster-connection name="myhost1-cluster">
<connector-ref>netty-connector</connector-ref>
<retry-interval>500</retry-interval>
<use-duplicate-detection>true</use-duplicate-detection>
<message-load-balancing>ON_DEMAND</message-load-balancing>
<max-hops>1</max-hops>
<static-connectors>
<connector-ref>broker2-connector</connector-ref> <!-- defined in the connectors -->
</static-connectors>
</cluster-connection>
</cluster-connections>
<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>
<!--default for catch all-->
<address-setting match="#">
<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-delete-queues>false</auto-delete-queues>
<auto-delete-created-queues>false</auto-delete-created-queues>
<auto-delete-addresses>false</auto-delete-addresses>
</address-setting>
</address-settings>
</core>
</configuration>
Client which uses Java and producer template to push message to direct endpoint and then routed to queue produces message:
say Java-camel-producer-client
package com.demo.artemis;
import org.apache.camel.CamelContext;
import org.apache.camel.ProducerTemplate;
import org.apache.camel.spring.SpringCamelContext;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class ToRoute {
public static void main(String[] args) throws Exception {
ApplicationContext appContext = new ClassPathXmlApplicationContext(
"camel-context-producer.xml");
ProducerTemplate template = null;
CamelContext camelContext = SpringCamelContext.springCamelContext(
appContext, false);
try {
camelContext.start();
template = camelContext.createProducerTemplate();
String msg = null;
int loop =0;
int i = 0;
while(true) {
if (i%10000==0) {
i=1;
loop=loop+1;
}
if(loop==2) break;
msg ="---> "+(++i);
template.sendBody("direct:toDWQueue", msg);
}
} finally {
if (template != null) {
template.stop();
}
camelContext.stop();
}
}
}
Camel Context which sends message to the Queue:
Say camel-producer-client
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:jee="http://www.springframework.org/schema/jee"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/jee
http://www.springframework.org/schema/jee/spring-jee-3.1.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://camel.apache.org/schema/spring
http://camel.apache.org/schema/spring/camel-spring.xsd">
<bean id="jmsConnectionFactory" class="org.apache.activemq.artemis.jms.client.ActiveMQJMSConnectionFactory">
<constructor-arg index="0" value="(tcp://myhost:61616,tcp://myhost1:61617)?ha=true;reconnectAttempts=-1;"/>
</bean>
<bean id="jmsPooledConnectionFactory" class="org.messaginghub.pooled.jms.JmsPoolConnectionFactory" init-method="start" destroy-method="stop">
<property name="maxConnections" value="10" />
<property name="connectionFactory" ref="jmsConnectionFactory" />
</bean>
<bean id="jmsConfig" class="org.apache.camel.component.jms.JmsConfiguration">
<property name="connectionFactory" ref="jmsPooledConnectionFactory" />
<property name="concurrentConsumers" value="5" />
</bean>
<bean id="jms" class="org.apache.camel.component.jms.JmsComponent">
<property name="configuration" ref="jmsConfig" />
<property name="streamMessageTypeEnabled" value="true"/>
</bean>
<camelContext id="camel" xmlns="http://camel.apache.org/schema/spring">
<endpoint id="myqueue" uri="jms:queue:myExampleQueue" />
<route>
<from uri="direct:toMyExample"/>
<transform>
<simple>MSG FRM DIRECT TO MyExampleQueue : ${bodyAs(String)}</simple>
</transform>
<to uri="ref:myqueue"/>
</route>
</camelContext>
</beans>
Camel consumer which reads from MyExampleQueue and transforms to OutboundQueue: (This context file is started using camel “org.apache.camel.spring.Main –ac
camel-consumer-client
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:jee="http://www.springframework.org/schema/jee"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/jee
http://www.springframework.org/schema/jee/spring-jee-3.1.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://camel.apache.org/schema/spring
http://camel.apache.org/schema/spring/camel-spring.xsd">
<bean id="jndiTemplate" class="org.springframework.jndi.JndiTemplate">
<property name="environment">
<props>
<prop key="java.naming.factory.initial">org.apache.activemq.artemis.jndi.ActiveMQInitialContextFactory</prop>
<prop key="connectionFactory.ConnectionFactory">(tcp://myhost1:61617,tcp://myhost2:61616)?ha=true;retryInterval=1000;retryIntervalMultiplier=1.0;reconnectAttempts=-1;</prop>
<prop key="queue.queue/MyExampleQueue">MyExampleQueue</prop>
<prop key="queue.queue/OutBoundQueue">OutBoundQueue</prop>
</props>
</property>
</bean>
<bean id="jndiFactoryBean" class="org.springframework.jndi.JndiObjectFactoryBean">
<property name="jndiName" value="ConnectionFactory"/>
<property name="jndiTemplate" ref="jndiTemplate"/>
<property name="cache" value="true"/>
</bean>
<bean id="jndiDestinationResolver" class="org.springframework.jms.support.destination.JndiDestinationResolver">
<property name="jndiTemplate" ref="jndiTemplate"/>
<property name="cache" value="true"/>
<!-- dynamic destination if the destination name is not found in JNDI -->
<property name="fallbackToDynamicDestination" value="true"/>
</bean>
<bean id="jmsConfig" class="org.apache.camel.component.jms.JmsConfiguration">
<property name="connectionFactory" ref="jndiFactoryBean"/>
<property name="destinationResolver" ref="jndiDestinationResolver"/>
<property name="concurrentConsumers" value="10" />
</bean>
<bean id="jms" class="org.apache.camel.component.jms.JmsComponent">
<property name="configuration" ref="jmsConfig" />
</bean>
<camelContext id="camel" xmlns="http://camel.apache.org/schema/spring">
<endpoint id="inqueue" uri="jms:queue:MyExampleQueue" />
<endpoint id="outqueue" uri="jms:queue:OutBoundQueue" />
<route>
<from uri="ref:inqueue" />
<convertBodyTo type="java.lang.String" />
<transform>
<simple>MSG FRM MyExampleQueue TO OutboundQueue : ${bodyAs(String)}</simple>
</transform>
<to uri="ref:outqueue" />
</route>
</camelContext>
</beans>
I think the issue i am facing is similar to this ticket http://activemq.2283324.n4.nabble.com/Connection-to-the-backup-after-master-shutdown-td4753770.html
When using the Camel context, i see the client consumer is redirected to slave when the master is not available (i was using the JNDI with JMSPoolConnectionFactory).
The Java-producer-client sends the message using the producer template to direct endpoint which is transformed and routed to queue. When the master is down, the client was not able to fail-over and connect to slave. (Question: Is this the behavior expected when the broker are in HA mode).
After reconnect attempt i see below exception When the master is down.
Caused by: javax.jms.JMSException: AMQ219016: Connection failure detected. Unblocking a blocking call that will never get a response
on the other hand camel-context-consumer which was started using Main, was able to fail-over to slave automatically. In the console i did notice that the consumer count 10 was available in slave host and processing data. But when the master is back up, the client didn't switch over to the live Master node. Question :Is this also expected?
For creating the connectionfactory below conventions is used.
(tcp://myhost:61616,tcp://myhost1:61617)?ha=true;reconnectAttempts=-1;
Question: Do we need to configure the broacast and discovery group, even when using a static connector?