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From davidmc <>
Subject Broker internals - tracing a message questions
Date Tue, 24 Jul 2007 09:12:12 GMT

Hello folks,

I have a question for someone who knows the broker code well...

When a broker relays a message to another broker through a network
connector, a new message is produced which has the same content, but a
different CommandID.

Among the many IDs that you can find in the Message class, is there any ID
or combination of IDs that can tie the outgoing message to the incoming one?
For example, I tried with the correlationID field and found its value is
always null, so it was not useful...

I would like to know this in order to be able to trace the 'travel path' of
a message who goes from a producer to a consumer, but through more than 1
broker, in a scenario with many producers, consumers, and networked brokers.

Thanks in advance :)

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