[JBoss-user] [Messaging, JMS JBossMQ] - Re: During startup server tries to load all messages in a JM

2004-04-11 Thread melaraj
What file is this in?

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[JBoss-user] [Messaging, JMS JBossMQ] - Re: During startup server tries to load all messages in a JM

2004-04-11 Thread melaraj
I checked the code for the MaxDepth attribute in the BasicQueue code and it will throw 
an exception if the queue is at the maxDepth.  Here is the functionality that I think 
would be correct:


1.) Accept messages in memory and presistant store up to maxDepth.

2.) Any messages above maxDepth should only be placed in presisitant store with a 
special marker that indicates that the message needs to be requeued.  The basic 
queuing FIFO functionality needs to be retain by placing all subsequent messages in 
the store untill there are no additional marked messages and there is space in memory.

3.) We need an addtional thread in the BasicQueue that reads marked messages from the 
presistant queue and moves them into memory space and the messages in memory are 
consumed.  

This would give us protection against over use of memory and will still retain the 
speed of using memory.

Manuel

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[JBoss-user] [Messaging, JMS JBossMQ] - Re: During startup server tries to load all messages in a JM

2004-04-10 Thread melaraj
Ok I don't think that this is the problem.  At least to me the problem is that the 
basicQueue attempts to cash every single message.  This is a big problem since 
messages can build up over time to millions adding up to GB of data.  Today, as it 
stands, if the the MDB side shuts down for more than one hour, the messages sitting in 
the queue will build up to over 400,000.  Even if it is just the header, it is not 
good enough.  There needs to be a more effective memory managament such as setting 
limitations to how much data can be loaded into the basicqueue at once.  Let me look 
into this a little more to see what can be done.

thanks,
ME

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[JBoss-user] [Messaging, JMS JBossMQ] - Re: During startup server tries to load all messages in a JM

2004-04-08 Thread melaraj
I am having the same problems.  The issue is very significant because my application 
processes millions of messages per day and it has to use Queues to feed the Data 
warehousing system.  I would be gladd to help in correcting this problem.  Can you 
guys give me information on which module has the problem.

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