configure the failover maxReconnectAttempts and the failure to connect will bubble up to the application where you can ignore it. The assumption of failover is that you want to 'transparently' maintain the connection and block pending reconnect
failover:(...)? maxReconnectAttempts=1 http://activemq.apache.org/failover-transport-reference.html On 16 April 2012 19:52, Brook, James <[email protected]> wrote: > I am trying to make sure my application is resilient. It sends JMS messages > to a remote ActiveMQ broker. Unfortunately when that broker goes down the > client starts to block even though I am using the Camel asyncSendBody method. > See below for the stack trace. > > The ActiveMQ version is 5.3.0 although I have the same problem with the most > recent stable release. > > This is the argument I give to the asyncSendBody method: > > jms:queue:myQueue?jmsMessageType=Text&timeToLive=5000 > > My connection factory uses this URL: > > > failover:(tcp://my.ip:61613,tcp://my:ip:61613)?useExponentialBackOff=true&randomize=false&timeout=1000 > > As the broker starts to fail I see lots of the following errors in the log: > > org.apache.camel.processor.UnitOfWorkProcessor - Caught unhandled > exception while processing ExchangeId: > ID-james-upcit-ds-upc-biz-64404-1334601186430-0-38 > IOException: Failover timeout of 1000 ms reached > > org.apache.activemq.transport.failover.FailoverTransport - Failover timed > out after 29998ms > > Then after attempting to send quite a few more messages the blocking starts. > I can't go live with my application in this state and I really don't want to > put another queue in place to decouple the JMS producer. Is there something I > am doing wrong? If the broker is down I am quite happy for these messages to > be lost - they lose their meaning if not delivered immediately. > > Thanks > James > > at java.lang.Object.wait(Native Method) > at > org.apache.activemq.transport.failover.FailoverTransport.oneway(FailoverTransport.java:433) > at > org.apache.activemq.transport.MutexTransport.oneway(MutexTransport.java:40) > at > org.apache.activemq.transport.ResponseCorrelator.asyncRequest(ResponseCorrelator.java:74) > at > org.apache.activemq.transport.ResponseCorrelator.request(ResponseCorrelator.java:79) > at > org.apache.activemq.ActiveMQConnection.syncSendPacket(ActiveMQConnection.java:1244) > at > org.apache.activemq.ActiveMQConnection.ensureConnectionInfoSent(ActiveMQConnection.java:1350) > at > org.apache.activemq.ActiveMQConnection.createSession(ActiveMQConnection.java:300) > at > org.springframework.jms.support.JmsAccessor.createSession(JmsAccessor.java:196) > at > org.springframework.jms.core.JmsTemplate.execute(JmsTemplate.java:457) > at > org.apache.camel.component.jms.JmsConfiguration$CamelJmsTemplate.send(JmsConfiguration.java:185) > at > org.apache.camel.component.jms.JmsProducer.doSend(JmsProducer.java:359) > at > org.apache.camel.component.jms.JmsProducer.processInOnly(JmsProducer.java:313) > at > org.apache.camel.component.jms.JmsProducer.process(JmsProducer.java:111) > at > org.apache.camel.processor.UnitOfWorkProcessor.processAsync(UnitOfWorkProcessor.java:150) > at > org.apache.camel.processor.UnitOfWorkProcessor.process(UnitOfWorkProcessor.java:117) > at > org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:99) > at > org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:86) > at > org.apache.camel.processor.UnitOfWorkProducer.process(UnitOfWorkProducer.java:63) > at > org.apache.camel.impl.ProducerCache$2.doInProducer(ProducerCache.java:352) > at > org.apache.camel.impl.ProducerCache$2.doInProducer(ProducerCache.java:324) > at > org.apache.camel.impl.ProducerCache.doInProducer(ProducerCache.java:223) > at > org.apache.camel.impl.ProducerCache.sendExchange(ProducerCache.java:324) > at org.apache.camel.impl.ProducerCache.send(ProducerCache.java:169) > at > org.apache.camel.impl.DefaultProducerTemplate.send(DefaultProducerTemplate.java:111) > at > org.apache.camel.impl.DefaultProducerTemplate.sendBody(DefaultProducerTemplate.java:124) > at > org.apache.camel.impl.DefaultProducerTemplate$14.call(DefaultProducerTemplate.java:596) > at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) > at java.util.concurrent.FutureTask.run(FutureTask.java:138) > at > java.util.concurrent.ThreadPoolExecutor$CallerRunsPolicy.rejectedExecution(ThreadPoolExecutor.java:1746) > at > java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:767) > at > java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:658) > at > java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:92) > at > org.apache.camel.impl.DefaultProducerTemplate.asyncSendBody(DefaultProducerTemplate.java:601) > at > org.apache.camel.impl.DefaultProducerTemplate.asyncSendBody(DefaultProducerTemplate.java:458) -- http://fusesource.com http://blog.garytully.com
