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List:       activemq-dev
Subject:    Re: Is this a kaha consistency problem?
From:       Rob Davies <rajdavies () gmail ! com>
Date:       2008-12-30 6:46:48
Message-ID: F1F6AB2C-7C45-4B2C-95E6-1BE1B1F48C89 () gmail ! com
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Understand your problem. These messages can be the symptom of a bug -  
usually in in org.apache.activemq.broker.region.cursors (see  
StoreDurableSubscriberCursor) - would certainly like to help iron this  
out

cheers,

Rob
On 30 Dec 2008, at 00:31, David Jencks wrote:

>
> On Dec 29, 2008, at 10:29 AM, Rob Davies wrote:
>
>> this could be a bug - could you produce a test case ?
>
> At this point, the test case is "set up and run the jms tck on  
> geronimo and look in the geronimo log to see these messages".  I was  
> kinda hoping for a pointer on where to look to narrow things down a  
> bit.  I __think__ but am not sure that these have something to do  
> with durable subscribers.... which I'm having other problems with.   
> If these messages are expected or don't indicate a problem I don't  
> want to spend a lot of time on this particular issue.
>
> thanks
> david jencks
>
>>
>> On 29 Dec 2008, at 17:24, David Jencks wrote:
>>
>>>
>>> On Dec 29, 2008, at 1:15 AM, Rob Davies wrote:
>>>
>>>> which version are you using David ?
>>>
>>> activemq trunk.  I have a couple local modifications but I don't  
>>> think they cause this -- they are far from the kaha code.
>>>
>>> thanks
>>> david jencks
>>>
>>>
>>>>
>>>> On 25 Dec 2008, at 20:12, David Jencks wrote:
>>>>
>>>>> I'm working on trying to get the tck to pass with activemq trunk  
>>>>> in geronimo.  When I run a failing test twice the server log  
>>>>> shows stuff like this:
>>>>>
>>>>> 2008-12-25 11:37:08,567 ERROR [RecoveryListenerAdapter] Message  
>>>>> id ID:pb.local-56923-1230232035140-2:13:1:1:1 could not be  
>>>>> recovered from the data store - already dispatched
>>>>> 2008-12-25 11:37:08,574 ERROR [RecoveryListenerAdapter] Message  
>>>>> id ID:pb.local-56923-1230232035140-2:12:1:1:1 could not be  
>>>>> recovered from the data store - already dispatched
>>>>>
>>>>> (lots and lots of times, each )
>>>>>
>>>>> This seems to be from RecoveryListenerAdapter:
>>>>>
>>>>> public boolean recoverMessageReference(MessageId ref) throws  
>>>>> Exception {
>>>>>    Message message = this.store.getMessage(ref);
>>>>>    if (message != null) {
>>>>>        return recoverMessage(message);
>>>>>    } else {
>>>>>        LOG.error("Message id " + ref + " could not be recovered  
>>>>> from the data store - already dispatched");
>>>>>    }
>>>>>    return false;
>>>>> }
>>>>>
>>>>>
>>>>> My guess is that the reference store has a reference to a  
>>>>> message that is no longer in the message store.  Is this a  
>>>>> problem or an expected state?  If its unexpected, does anyone  
>>>>> have any ideas on where to look to figure out how we got into  
>>>>> this state?
>>>>>
>>>>> thanks
>>>>> david jencks
>>>>>
>>>>
>>>
>>
>

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