Ok, I gave that a shot. I set the broker name to a randomly-generated UUID (which has implications for durable subscriptions and data recovery should a broker go down, I imagine, but it's for the sake of testing). I still got errors, so I set the network connector name to the same value. It made the error a lot messier to look at, but it's actually the same error:
In this case, I started broker "be052f4d-5d66-4b61-bfb0-a298f72f8a27" first, then broker "81ca000d-ad12-4afe-9f94-733930ff7d54". Here's the error that was displayed on the second broker's side: javax.jms.InvalidClientIDException: Broker: 81ca000d-ad12-4afe-9f94-733930ff7d54 - Client: NC_be052f4d-5d66-4b61-bfb0-a298f72f8a27_outbound already connected from vm://81ca000d-ad12-4afe-9f94-733930ff7d54#0 The error on the first broker's side is similar, but with the broker names reversed: javax.jms.InvalidClientIDException: Broker: be052f4d-5d66-4b61-bfb0-a298f72f8a27 - Client: NC_81ca000d-ad12-4afe-9f94-733930ff7d54_outbound already connected from vm://be052f4d-5d66-4b61-bfb0-a298f72f8a27#2 Surely, I must be doing something wrong here? On Thu, May 1, 2008 at 1:09 PM, Dejan Bosanac <[EMAIL PROTECTED]> wrote: > Hi, > > you can try specifying different name for every broker. It should help. > > Regards > -- > Dejan Bosanac > www.scriptinginjava.net > On Thu, May 1, 2008 at 5:29 PM, matt hoffman <[EMAIL PROTECTED]> wrote: > > > I'm having a lot of trouble getting embedded brokers to work as they > > should. I'm using them in my case mainly to ease configuration -- I > want > > to > > be able to run several instances of the same code and have them discover > > each other and communicate, without needing a single server already > > running. > > > > > > The current problem is, the first server starts up great, and works as > > expected. Subsequent servers, though, throw this error: > > > > javax.jms.InvalidClientIDException: Broker: localhost - Client: > > NC_localhost_inboundlocalhost already connected from vm://localhost#0 > > > > Which seems strange, seeing as how I'm not explicitly setting clientID > > anywhere. I thought these were auto-generated? > > > > Below is the configuration I'm currently using. I'm not referencing the > > broker in code at all; I'm interacting with it only through the Spring > > JmsTemplate, which in turn gets a connection from the > > ActiveMQConnectionFactory connecting to vm://localhost. Based on the > > documentation, that seems to be the way to do it... what have I > > misunderstood? > > > > > > In my Spring config: > > > > <bean id="broker" > class="org.apache.activemq.xbean.BrokerFactoryBean"> > > <property name="config" value="classpath:activemq.xml" /> > > <property name="start" value="true" /> > > </bean> > > > > <bean id="workQueueDestination" > > class="org.apache.activemq.command.ActiveMQQueue"> > > <constructor-arg index="0" value="Test.WorkQueue"/> > > </bean> > > > > <bean id="eventTopicDestination" > > class="org.apache.activemq.command.ActiveMQTopic"> > > <constructor-arg index="0" value="Test.EventTopic"/> > > </bean> > > > > <bean id="jmsFactory" > > class="org.apache.activemq.ActiveMQConnectionFactory" > depends-on="broker"> > > <property name="brokerURL" value="vm://localhost"/> > > </bean> > > > > <bean id="workQueueJmsTemplate" > > class="org.springframework.jms.core.JmsTemplate"> > > <property name="connectionFactory"> > > <!-- wrapping in a pool to avoid creating a connection per > send > > --> > > <bean > > class="org.springframework.jms.connection.CachingConnectionFactory"> > > <property name="targetConnectionFactory"> > > <ref local="jmsFactory"/> > > </property> > > </bean> > > </property> > > > > <property name="defaultDestination" ref="workQueueDestination"/> > > </bean> > > > > I previously tried including the broker config directly in the Spring > > file, > > but broke it out as a problem-solving exercise and haven't moved it back > > yet. > > Here's the referenced activemq.xml: > > > > > > <beans xmlns="http://www.springframework.org/schema/beans"; > > xmlns:jms="http://activemq.org/config/1.0"; > > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; > > xsi:schemaLocation="http://www.springframework.org/schema/beans > > http://www.springframework.org/schema/beans/spring-beans-2.0.xsd > > http://activemq.org/config/1.0 > > http://activemq.apache.org/schema/core/activemq-core-5.0.0.xsd"; > > default-lazy-init="false"> > > > > <jms:broker id="broker" persistent="false" useJmx="true"> > > <jms:networkConnectors> > > <jms:networkConnector uri="multicast://default" > duplex="true"/> > > <!-- by default just auto discover the other brokers --> > > </jms:networkConnectors> > > > > <jms:persistenceAdapter> > > <jms:memoryPersistenceAdapter/> > > </jms:persistenceAdapter> > > > > <jms:transportConnectors> > > <jms:transportConnector name="openwire" > uri="tcp://localhost:0" > > discoveryUri="multicast://default"/> > > </jms:transportConnectors> > > > > </jms:broker> > > > > </beans> > > >
