Guillaume Nodet (JIRA) wrote:
[ https://issues.apache.org/activemq/browse/SM-751?page=comments#action_37501 ] Guillaume Nodet commented on SM-751:
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Btw, looking at the patch, I was wondering if it would be interesting to have a 
multi-level
correlationId, so that we could trace the exchange to its "parent" exchange and 
from
the parent to the grand-parent and so forth...
Hi,

Sorry to drag out an old email, but I was wondering if the proposition above made it into the code ?

It would be quite useful to have ...

(as I see it when a new correlationid is added into the properties of an exchange which already has one, another property records the parentcorrelationid ... )

?

thanks,

Roger
Flow tracing with correlation id
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                Key: SM-751
                URL: https://issues.apache.org/activemq/browse/SM-751
            Project: ServiceMix
         Issue Type: Improvement
           Reporter: Gianfranco Boccalon
        Attachments: servicemix-components.zip


Add the possibility to trace the flow of the messages inside a Service Assembly.
For example, if we have a Service Assembly composed of three components, two binding 
components (call them BC1 and BC2) and a service engine (SE) organized in this 
sequence BC1->SE->BC2, we need to recognize that the output messages produced 
by the SE component are related to some messages provided by BC1.
To do this, we need to add a "process correlation id" to the message exchanges 
and to modify the used components, to propagate this correlation id in all Message 
Exchanges sent.
Enclosed there is the modified code for the following components:
- HTTP binding component: here I added the code to generate the correlation Id 
and set it in the Message Exchange
- Splitter
- Router (the lightweight component)


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