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From Jim Gomes <>
Subject Re: NMS / ActveMQ questions regarding network of brokers and ByteMessages.
Date Tue, 28 Jul 2009 05:18:49 GMT
NMS does not support the BlobMessage, but if you can access the large files
via a URL, then could you just send a TextMessage with the URL?

On Thu, Jul 16, 2009 at 1:03 AM, Michel Van Hoof <>wrote:

> Hi,
> After reading just about every article, documentation and forum about
> ActiveMQ / NMS the last couple of weeks, a couple of things are still
> unclear so i was hoping someone here could enlighten me :s
> ByteMessages
> We are looking at a situation where a lot of files between 5 to 200Mb
> (ocasionally more but is seldom) should be sent through the MQ. These
> 'messages' could be present in a queue for a long while (multiple days)
> since the clients are bandwidth restricted for their downloads. A network
> of
> brokers would be in place ( unrestricted ) to get the message as close as
> possible to the client.
> Now i know the standard is: "for long term storage, use a database", but
> this would create a lot of overhead in our enviroment ..
> Now my question is: what is the best way to configure ActiveMQ for this
> without killing the machine(s) ? We would use PostGresql as JDBC journal
> but
> should we cache the messages locally on disk too ? Will ActiveMQ keep these
> messages in memory ? Can we avoid this ? Can we make sure new messages
> would
> still arrive in the queue even if it has multiple 100's of MB's in queue
> for
> that specific client ? Does NMS support the "BlobMessage" so we could just
> pass a url ( all files are already hosted)
> thanks !
> --
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