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From "Bhanu (JIRA)" <>
Subject [jira] [Created] (AMQ-3826) Lot of unmatched ackowledge warnings
Date Thu, 03 May 2012 13:00:49 GMT
Bhanu created AMQ-3826:

             Summary: Lot of unmatched ackowledge warnings
                 Key: AMQ-3826
             Project: ActiveMQ
          Issue Type: Bug
          Components: Broker
    Affects Versions: 5.5.1
            Reporter: Bhanu

We are getting a lot of these kind of exceptions in broker logs.

activemq.log.2012-02-29:2012-02-29 19:10:32,872 | WARN  | Async error occurred: javax.jms.JMSException:
Unmatched acknowledge: MessageAck {commandId = 80173, responseRequired = false, ackType =
2, consumerId =, firstMessageId =
null, lastMessageId =, destination
= queue://tca.heartbeat, transactionId = null, messageCount = 1, poisonCause = null}; Expected
message count (1) differs from count in dispatched-list (2) |
| ActiveMQ Transport: tcp:///

I did some googling and found that these can occur while using failover(either by failover
API or failover broker). But we are not using any failover in the setup where these exceptions
are occuring. I am not able to reproduce them either. They occur during the day randomly.

Any ideas on why they are being logged?


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