Hello,
I've tried to configure 2 brokers, having one of them listen to a multicast
address and the other advertise itself using discovery. This configuration
is described
http://incubator.apache.org/activemq/what-is-the-difference-between-discovery-multicast-and-zeroconf.html
here
while I tried to run these brokers I got SocketException with "no such
device" message.
Does someone know why ?
========= first broker configuration ==================
<?xml version="1.0" encoding="UTF-8"?>
<beans>
<bean
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"/>
<broker brokerName="cms-broker" persistent="false"
useShutdownHook="false"
xmlns="http://activemq.org/config/1.0";>
<transportConnectors>
<transportConnector name="multicast" uri="tcp://localhost:61616"
discoveryUri="multicast://default"/>
<transportConnector name="stomp"
uri="stomp://localhost:61613"/>
<transportConnector name="vm"
uri="vm://cms-broker"/>
</transportConnectors>
</broker>
</beans>
========= second broker configuration =======================
?xml version="1.0" encoding="UTF-8"?>
<beans>
<bean
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"/>
<broker brokerName="play-broker" persistent="false"
useShutdownHook="false"
xmlns="http://activemq.org/config/1.0";>
<transportConnectors>
<transportConnector uri="vm://play-broker"/>
</transportConnectors>
<networkConnectors>
<networkConnector name="default"
uri="multicast://default"/>
</networkConnectors>
</broker>
</beans>
============= on running any of the brokers i got : ===============
2007-02-05 17:03:29,166 1468 ERROR
[org.apache.activemq.broker.BrokerService] (main:) Failed to start ActiveMQ
JMS Message Broker. Reason: java.net.SocketException: No such device
java.net.SocketException: No such device
at java.net.PlainDatagramSocketImpl.join(Native Method)
at
java.net.PlainDatagramSocketImpl.join(PlainDatagramSocketImpl.java:172)
at java.net.MulticastSocket.joinGroup(MulticastSocket.java:276)
at
org.apache.activemq.transport.discovery.multicast.MulticastDiscoveryAgent.start(MulticastDiscoveryAgent.java:223)
at
org.apache.activemq.broker.TransportConnector.start(TransportConnector.java:225)
at
org.apache.activemq.broker.BrokerService.startTransportConnector(BrokerService.java:1510)
at
org.apache.activemq.broker.BrokerService.startAllConnectors(BrokerService.java:1468)
at
org.apache.activemq.broker.BrokerService.start(BrokerService.java:402)
at
org.apache.activemq.xbean.XBeanBrokerService.afterPropertiesSet(XBeanBrokerService.java:47)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1062)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1029)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:420)
at
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:245)
at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:141)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:242)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:156)
at
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:290)
at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:348)
at
org.apache.xbean.spring.context.ResourceXmlApplicationContext.<init>(ResourceXmlApplicationContext.java:88)
at
org.apache.xbean.spring.context.ResourceXmlApplicationContext.<init>(ResourceXmlApplicationContext.java:76)
at
org.apache.xbean.spring.context.ResourceXmlApplicationContext.<init>(ResourceXmlApplicationContext.java:72)
at
org.apache.xbean.spring.context.ResourceXmlApplicationContext.<init>(ResourceXmlApplicationContext.java:68)
at
org.apache.activemq.xbean.BrokerFactoryBean.afterPropertiesSet(BrokerFactoryBean.java:84)
at CommunicationCenter.<init>(CommunicationCenter.java:23)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
at
org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:82)
at
org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:78)
at
org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:156)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:683)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:621)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
at
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:245)
at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:141)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:242)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:156)
at
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:290)
at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:348)
at
org.springframework.context.support.FileSystemXmlApplicationContext.<init>(FileSystemXmlApplicationContext.java:89)
at
org.springframework.context.support.FileSystemXmlApplicationContext.<init>(FileSystemXmlApplicationContext.java:74)
at
org.springframework.context.support.FileSystemXmlApplicationContext.<init>(FileSystemXmlApplicationContext.java:65)
...
--
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