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Posted to users@activemq.apache.org by Duro <du...@zoznam.sk> on 2008/06/12 14:48:58 UTC

persistent messages for durable subscribers are not purged from disc

Hi all,
I have some problems with multiple durable subscribers while persistent
delivery is used.
If I understand concept of durable/persistent subscription, message should
be deleted from disc storage (periodically) after all interested subscribers
have received it. In case there was one durable subscriber everything woks
just fine. However when I tested this scenerio with two durable subscribers
on topic,  the messages were never deleted (disc usage is continously
consumed and never purged). 
After 100k text messages (5kB/message) my storage size exceeded 600 MB.
I am using Amq 5.1 with default configuration file with
amqPersistenceAdapter.

Please help, I am solving this problem long enough and I am quite desperate
already
 
thanks,
Juraj. 
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Re: persistent messages for durable subscribers are not purged from disc

Posted by Duro <du...@zoznam.sk>.
Hi,
I have created jira with two simple java classes. AMQ-1797.


rajdavies wrote:
> 
> Hi juraj,
> 
> could you create a jira - with a junit test case attached ?
> 
> thanks,
> 
> Rob
> On 12 Jun 2008, at 13:48, Duro wrote:
> 
>>
>> Hi all,
>> I have some problems with multiple durable subscribers while  
>> persistent
>> delivery is used.
>> If I understand concept of durable/persistent subscription, message  
>> should
>> be deleted from disc storage (periodically) after all interested  
>> subscribers
>> have received it. In case there was one durable subscriber  
>> everything woks
>> just fine. However when I tested this scenerio with two durable  
>> subscribers
>> on topic,  the messages were never deleted (disc usage is continously
>> consumed and never purged).
>> After 100k text messages (5kB/message) my storage size exceeded 600  
>> MB.
>> I am using Amq 5.1 with default configuration file with
>> amqPersistenceAdapter.
>>
>> Please help, I am solving this problem long enough and I am quite  
>> desperate
>> already
>>
>> thanks,
>> Juraj.
>> -- 
>> View this message in context:
>> http://www.nabble.com/persistent-messages-for-durable-subscribers-are-not-purged-from-disc-tp17799211p17799211.html
>> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>>
> 
> 
> 

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Re: persistent messages for durable subscribers are not purged from disc

Posted by Rob Davies <ra...@gmail.com>.
On 13 Jun 2008, at 16:04, Duro wrote:

>
> It looks that there is a problem in activemq journal wich is used by  
> default
> amqPersistenceAdapter. I have tested this also on amq 4.1.1  
> journaledJDBC
> adapter with same bug.
> When jdbcPersistenceAdapter with 4.1.1(non-journal) or
> kahaPersistenceAdapter with 5.1 are used with 2 durable topic  
> subscribers,
> disc storage is periodically emptied.
>
>
> -- 
> View this message in context: http://www.nabble.com/persistent-messages-for-durable-subscribers-are-not-purged-from-disc-tp17799211p17825529.html
> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>

This is now fixed in trunk



cheers,

Rob

http://open.iona.com/products/enterprise-activemq
http://rajdavies.blogspot.com/

Re: persistent messages for durable subscribers are not purged from disc

Posted by Duro <du...@zoznam.sk>.
It looks that there is a problem in activemq journal wich is used by default
amqPersistenceAdapter. I have tested this also on amq 4.1.1 journaledJDBC
adapter with same bug.
When jdbcPersistenceAdapter with 4.1.1(non-journal) or
kahaPersistenceAdapter with 5.1 are used with 2 durable topic subscribers,
disc storage is periodically emptied.


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Re: persistent messages for durable subscribers are not purged from disc

Posted by Rob Davies <ra...@gmail.com>.
Hi juraj,

could you create a jira - with a junit test case attached ?

thanks,

Rob
On 12 Jun 2008, at 13:48, Duro wrote:

>
> Hi all,
> I have some problems with multiple durable subscribers while  
> persistent
> delivery is used.
> If I understand concept of durable/persistent subscription, message  
> should
> be deleted from disc storage (periodically) after all interested  
> subscribers
> have received it. In case there was one durable subscriber  
> everything woks
> just fine. However when I tested this scenerio with two durable  
> subscribers
> on topic,  the messages were never deleted (disc usage is continously
> consumed and never purged).
> After 100k text messages (5kB/message) my storage size exceeded 600  
> MB.
> I am using Amq 5.1 with default configuration file with
> amqPersistenceAdapter.
>
> Please help, I am solving this problem long enough and I am quite  
> desperate
> already
>
> thanks,
> Juraj.
> -- 
> View this message in context: http://www.nabble.com/persistent-messages-for-durable-subscribers-are-not-purged-from-disc-tp17799211p17799211.html
> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>