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From "Mark Gellings (JIRA)" <jira+amq...@apache.org>
Subject [jira] Commented: (AMQNET-294) durable subscription message loss when master broker fails to slave
Date Wed, 15 Dec 2010 18:20:01 GMT

    [ https://issues.apache.org/jira/browse/AMQNET-294?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12971767#action_12971767
] 

Mark Gellings commented on AMQNET-294:
--------------------------------------

I see this in the ActiveMQ broker log.

2010-12-15 12:10:38,322 | INFO  | Transport failed: java.io.EOFException | org.apache.activemq.broker.TransportConnection.Transport
| ActiveMQ Transport: tcp:///10.0.2.106:57473
2010-12-15 12:10:59,153 | WARN  | Async error occurred: javax.jms.JMSException: Unmatched
acknowledge: MessageAck {commandId = 53, responseRequired = false, ackType = 2, consumerId
= ID:QG076619-57468-634280118318596428-0:2:1:1, firstMessageId = ID:QG076619-57468-634280118318596428-0:1:1:1:50,
lastMessageId = ID:QG076619-57468-634280118318596428-0:1:1:1:50, destination = topic://DurableConsumerTest-TopicId,
transactionId = null, messageCount = 1}; Could not find Message-ID ID:QG076619-57468-634280118318596428-0:1:1:1:50
in dispatched-list (start of ack) | org.apache.activemq.broker.TransportConnection.Service
| ActiveMQ Transport: tcp:///10.0.2.106:57480
javax.jms.JMSException: Unmatched acknowledge: MessageAck {commandId = 53, responseRequired
= false, ackType = 2, consumerId = ID:QG076619-57468-634280118318596428-0:2:1:1, firstMessageId
= ID:QG076619-57468-634280118318596428-0:1:1:1:50, lastMessageId = ID:QG076619-57468-634280118318596428-0:1:1:1:50,
destination = topic://DurableConsumerTest-TopicId, transactionId = null, messageCount = 1};
Could not find Message-ID ID:QG076619-57468-634280118318596428-0:1:1:1:50 in dispatched-list
(start of ack)
	at org.apache.activemq.broker.region.PrefetchSubscription.assertAckMatchesDispatched(PrefetchSubscription.java:436)
	at org.apache.activemq.broker.region.PrefetchSubscription.acknowledge(PrefetchSubscription.java:207)
	at org.apache.activemq.broker.region.AbstractRegion.acknowledge(AbstractRegion.java:383)
	at org.apache.activemq.broker.region.RegionBroker.acknowledge(RegionBroker.java:544)
	at org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:77)
	at org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:77)
	at org.apache.activemq.broker.TransactionBroker.acknowledge(TransactionBroker.java:197)
	at org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:77)
	at org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:77)
	at org.apache.activemq.broker.MutableBrokerFilter.acknowledge(MutableBrokerFilter.java:87)
	at org.apache.activemq.broker.TransportConnection.processMessageAck(TransportConnection.java:469)
	at org.apache.activemq.command.MessageAck.visit(MessageAck.java:214)
	at org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:311)
	at org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:185)
	at org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:69)
	at org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:113)
	at org.apache.activemq.transport.InactivityMonitor.onCommand(InactivityMonitor.java:228)
	at org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:83)
	at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:220)
	at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:202)
	at java.lang.Thread.run(Unknown Source)


> durable subscription message loss when master broker fails to slave
> -------------------------------------------------------------------
>
>                 Key: AMQNET-294
>                 URL: https://issues.apache.org/jira/browse/AMQNET-294
>             Project: ActiveMQ .Net
>          Issue Type: Bug
>          Components: NMS
>    Affects Versions: 1.4.1
>         Environment: Windows 7 (client), Windows Server 2008 64-bit (server brokers run
on), Sql Server 2008 (database)
>            Reporter: Mark Gellings
>            Assignee: Jim Gomes
>             Fix For: 1.5.0
>
>         Attachments: Apache.NMS.Test (2).zip, Apache.NMS.Test.zip, DurableConsumerTest.cs,
DurableSubscriberFailoverTest.java, NMSLog.txt, TimsTestRevisedSlightly.zip
>
>
> We are seeing message loss on a durable subscription when using NMS ActiveMQ v1.4.1 and
ActiveMQ v5.4.1.
> Please run the included NUnit test and watch the console output.  When it says "Failover
the broker now!" do as it says.  About 75% of the time less than half of the expected 250
messages come through.
> Using version 1.1 of NMS the majority of the time the test passes.  I have seen it fail
only a few times with this earlier version, and when it does there are only a couple messages
that don't come through.
> In the zip file will be the unit test, and a config directory containing the master and
slave activemq configurations.  We are using JDBC master/slave.

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