We're seeing on both 5.2 and 5.3.

I have to check to see if we're getting duplicate messages. I don't think so
but I have to check the logs when I get in.
 

rajdavies wrote:
> 
> Which version of ActiveMQ ?
> On 25 Sep 2009, at 01:50, penguinone wrote:
> 
>>
>>
>> We set up our active MQ to fail over (failover:// 
>> (host1:61616,host2:61616)).
>>
>> I'm getting these fairly frequently, and I've only seen them related  
>> to
>> memory in other people's posts. Unlikely to be this case as I'm  
>> operating in
>> a low volume test environment. Any leads as to what else might be the
>> problem?
>>
>> WARN  Service                        - Async error occurred:
>> javax.jms.JMSException: Unmatched acknowledege: MessageAck  
>> {commandId = 71,
>> responseRequired = false, ackType = 2, consumerId =
>> ID:domU-12-31-38-01-89-01-48240-1253838130518-0:55:1:1,  
>> firstMessageId =
>> null, lastMessageId =
>> ID:domU-12-31-38-01-89-01-48240-1253838130518-0:68:1:1:1,  
>> destination =
>> queue://queue.MOBLAH, transactionId =
>> TX:ID:domU-12-31-38-01-89-01-48240-1253838130518-0:55:22,  
>> messageCount = 3};
>> Could not find Message-ID
>> ID:domU-12-31-38-01-89-01-48240-1253838130518-0:68:1:1:1 in  
>> dispatched-list
>> (end of ack)
>> javax.jms.JMSException: Unmatched acknowledege: MessageAck  
>> {commandId = 71,
>> responseRequired = false, ackType = 2, consumerId =
>> ID:domU-12-31-38-01-89-01-48240-1253838130518-0:55:1:1,  
>> firstMessageId =
>> null, lastMessageId =
>> ID:domU-12-31-38-01-89-01-48240-1253838130518-0:68:1:1:1,  
>> destination =
>> queue://queue.MOBLAH, transactionId =
>> TX:ID:domU-12-31-38-01-89-01-48240-1253838130518-0:55:22,  
>> messageCount = 3};
>> Could not find Message-ID
>> ID:domU-12-31-38-01-89-01-48240-1253838130518-0:68:1:1:1 in  
>> dispatched-list
>> (end of ack)
>>        at
>> org 
>> .apache 
>> .activemq 
>> .broker 
>> .region 
>> .PrefetchSubscription 
>> .assertAckMatchesDispatched(PrefetchSubscription.java:444)
>>        at
>> org 
>> .apache 
>> .activemq 
>> .broker 
>> .region.PrefetchSubscription.acknowledge(PrefetchSubscription.java: 
>> 208)
>>        at
>> org 
>> .apache 
>> .activemq 
>> .broker.region.AbstractRegion.acknowledge(AbstractRegion.java:377)
>> -- 
>> View this message in context:
>> http://www.nabble.com/ActiveMQ-Failover-exception-tp25604966p25604966.html
>> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>>
> 
> Rob Davies
> http://twitter.com/rajdavies
> I work here: http://fusesource.com
> My Blog: http://rajdavies.blogspot.com/
> I'm writing this: http://www.manning.com/snyder/
> 
> 
> 
> 
> 
> 
> 

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