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From pradeep <pradeepzm...@gmail.com>
Subject RE: Paging support
Date Wed, 30 Aug 2006 05:15:27 GMT

That would be nice. When would that be implemented ?
Thanks.
pradeep

Fateev, Maxim wrote:
> 
> AFAIK messages are moved from journal to permantent storage (JDBC) on
> every checkpoint. The problem is that references for every message are
> still kept in memory. 
> IMHO it is inherent limitation of MessageStore API as it is defined now.
> The only way to get message is by id. And the only way to have id is to
> keep it in memory.
> I'm looking into changing MessageStore API to one that instead of 
> 
> Message 	getMessage(MessageId identity) 
> 
> Would provide
> 
> Message getNextMessage() 
> 
> method eliminating need to keep references in memory.
> 
> 
> 
> -----Original Message-----
> From: Anders Bengtsson [mailto:ndrsbngtssn@yahoo.se] 
> Sent: Tuesday, August 29, 2006 1:23 AM
> To: activemq-users@geronimo.apache.org
> Subject: Re: Paging support
> 
> 
> 
> gnodet wrote:
>> 
>> If you don' t use any persistent store, messages must be kept in 
>> memory, so you are obvisouly limited by the available mem.
>> 
> 
> Yes, this is what I would expect.
> 
> 
> 
>> If you use a jdbc store, messages can be removed from memory and store 
>> for later consumption.
>> 
> 
> Yes, except it doesn't actually work!
> 
> It writes things to the store, but it is still very much limited by memory
> for some reason. (Someone reported this as AMQ-845 earlier, but with no
> response).
> 
> --
> View this message in context:
> http://www.nabble.com/Paging-support-tf2163517.html#a6034790
> Sent from the ActiveMQ - User forum at Nabble.com.
> 
> 

-- 
View this message in context: http://www.nabble.com/Paging-support-tf2163517.html#a6052563
Sent from the ActiveMQ - User forum at Nabble.com.


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