"javax.jms.JMSException: Unmatched acknowledge: MessageAck" with MQTT clients
Issue
Running A-MQ with MQTT clients we regularly see the following exception
2014-10-07 08:40:21,312 | WARN | Q NIO Worker 615 | Service | ivemq.broker.TransportConnection 312 |
121 - org.apache.activemq.activemq-osgi - 5.9.0.redhat-610394 | Async error occurred:
javax.jms.JMSException: Unmatched acknowledge: MessageAck {commandId = 0, responseRequired = false, ackType = 2,
consumerId = ID:ip-10-171-32-203-6014-141267764-1:2:-1:9, firstMessageId = null,
lastMessageId = ID:ip-10-171-32-203-6014-141267764-1:45:-1:1:7,
destination = topic://test, transactionId = null, messageCount = 1, poisonCause = null};
Expected message count (1) differs from count in dispatched-list (36)
What causes such behavior?
Environment
- JBoss A-MQ 6.1
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