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From David Jencks <>
Subject Re: What is in-memory operation for JMS
Date Sun, 16 Mar 2008 17:03:45 GMT

On Mar 16, 2008, at 9:36 AM, newbie-gero wrote:

> Hi lists,
> i have read up about Geronimo and i read that JMS provider may be  
> configured
> for in-memory operation for maximum
> performance,
> May i know what does it mean by in-memory operation
ActiveMQ has quite a few transports.  The fastest is the vm in-memory  
transport.  You select it by specifying a vm:localhost?async=true URI  
in the resource adapater or broker connector configuration.

Unfortunately there's a bug in released activemq versions with vm  
transport that can produce a deadlock when used with transacted  
message delivery.  See 

david jencks

> Thanks
> -- 
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> memory-operation-for-JMS-tp16080967s134p16080967.html
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