It has always been like that, when an exchange is created an event is fired.
Multicast / split create exchange (sub exchanges) and thus events.

You can see if its a sub exchange as it has exchange property
CORRELATION_ID that points to its parent.
So if you only want parent exchanges, then filter based on CORRELATION_ID
is not present.


On Mon, Jan 30, 2023 at 3:07 PM Ephemeris Lappis <ephemeris.lap...@gmail.com>
wrote:

> Hello.
>
> After more tests I think I have more or less an idea of the origin of
> the events, but an explanation should be welcome.
>
> In some cases, the 3rd route produces two files, and in some of these
> cases, they use a multicast.
> The multicast seems to be the cause of the repeated events.
>
> I've tried setting the multicast to use the same unit of work, as I
> suppose that the same UoW ualo uses the same exchange, but it doesn't
> change events.
>
> @Claus Ibsen Could you please explain what occurs when multicast is
> used, with or without setting the unit of work ?
>
> The same 3 routes without multicast are realized with 3 exchanges, and
> the expected events.
>
> Thanks for your help.
>
> Regards.
>
> Le lun. 30 janv. 2023 à 14:16, Claus Ibsen <claus.ib...@gmail.com> a
> écrit :
> >
> > Hi
> >
> > This is expected as you use seda, that creates a new exchange
> > If you use direct then no exchange is created
> >
> > On Mon, Jan 30, 2023 at 1:51 PM Ephemeris Lappis <
> ephemeris.lap...@gmail.com>
> > wrote:
> >
> > > Hello.
> > >
> > > Debugging some routes with an EventNotifier it seems that the event
> > > ExchangecReated and ExchangeCompleted are repeated twice (I mean 3
> > > times instead of 1).
> > >
> > > My tested application routes are all on the same pattern :
> > > - route 1 : from JMS queue1 to JMS queue2
> > > - route 2 : from JMS queue2 to seda
> > > - route 3 : from seda to file
> > >
> > > In route 1 and 2 events are fired only once, but in route 3, I have 3
> > > events fired while the route is executed only once with only one file
> > > produced (and logs confirm I reach this part of the route only once).
> > > The ExchangeSent is fired only on the last exchange ID.
> > >
> > > All the exchange IDs are incremented as usual. Below, the logs :
> > > 13:01:42.540 [Camel (bbbmmm002-f002_context) thread #1 -
> > > JmsConsumer[bbbmmm002-f002.from.alice.queue]] INFO
> > > info.isocel.alice.com.caterpillar.testing.SpyEventNotifier - Spy
> > > counts created exchange : 1 [ID=29A6D5065A7A1B6-0000000000000000 /
> > > route=acq_bbbmmm002-f002]
> > > 13:01:42.579 [Camel (bbbmmm002-f002_context) thread #2 -
> > > JmsConsumer[bbbmmm002-f002.internal.queue]] INFO
> > > info.isocel.alice.com.caterpillar.testing.SpyEventNotifier - Spy
> > > counts created exchange : 2 [ID=29A6D5065A7A1B6-0000000000000001 /
> > > route=trf_bbbmmm002-f002]
> > > 13:01:42.585 [Camel (bbbmmm002-f002_context) thread #1 -
> > > JmsConsumer[bbbmmm002-f002.from.alice.queue]] INFO
> > > info.isocel.alice.com.caterpillar.testing.SpyEventNotifier - Spy
> > > counts completed exchange : 2 [ID=29A6D5065A7A1B6-0000000000000000 /
> > > route=acq_bbbmmm002-f002]
> > > 13:01:42.751 [Camel (bbbmmm002-f002_context) thread #2 -
> > > JmsConsumer[bbbmmm002-f002.internal.queue]] INFO
> > > info.isocel.alice.com.caterpillar.testing.SpyEventNotifier - Spy
> > > counts completed exchange : 2 [ID=29A6D5065A7A1B6-0000000000000001 /
> > > route=trf_bbbmmm002-f002]
> > > 13:01:43.406 [Camel (bbbmmm002-f002_context) thread #3 -
> > > seda://diff_bbbmmm002-f002] INFO
> > > info.isocel.alice.com.caterpillar.testing.SpyEventNotifier - Spy
> > > counts created exchange : 3 [ID=29A6D5065A7A1B6-0000000000000002 /
> > > route=diff_bbbmmm002-f002]
> > > 13:01:43.414 [Camel (bbbmmm002-f002_context) thread #3 -
> > > seda://diff_bbbmmm002-f002] INFO
> > > info.isocel.alice.com.caterpillar.testing.SpyEventNotifier - Spy
> > > counts created exchange : 4 [ID=29A6D5065A7A1B6-0000000000000003 /
> > > route=diff_bbbmmm002-f002]
> > > 13:01:43.441 [Camel (bbbmmm002-f002_context) thread #3 -
> > > seda://diff_bbbmmm002-f002] INFO
> > > info.isocel.alice.com.caterpillar.testing.SpyEventNotifier - Spy
> > > counts completed exchange : 4 [ID=29A6D5065A7A1B6-0000000000000003 /
> > > route=diff_bbbmmm002-f002]
> > > 13:01:43.442 [Camel (bbbmmm002-f002_context) thread #3 -
> > > seda://diff_bbbmmm002-f002] INFO
> > > info.isocel.alice.com.caterpillar.testing.SpyEventNotifier - Spy
> > > counts created exchange : 5 [ID=29A6D5065A7A1B6-0000000000000004 /
> > > route=diff_bbbmmm002-f002]
> > > 13:01:43.453 [Camel (bbbmmm002-f002_context) thread #3 -
> > > seda://diff_bbbmmm002-f002] INFO
> > > info.isocel.alice.com.caterpillar.testing.SpyEventNotifier - Spy
> > > counts completed exchange : 5 [ID=29A6D5065A7A1B6-0000000000000004 /
> > > route=diff_bbbmmm002-f002]
> > > 13:01:43.455 [Camel (bbbmmm002-f002_context) thread #3 -
> > > seda://diff_bbbmmm002-f002] INFO
> > > info.isocel.alice.com.caterpillar.testing.SpyEventNotifier - Spy
> > > counts completed exchange : 5 [ID=29A6D5065A7A1B6-0000000000000002 /
> > > route=diff_bbbmmm002-f002]
> > >
> > > Is it a bug, or what is the real expected behavior of these events ?
> > > Does it come from the seda component ?
> > >
> > > Thanks for your help.
> > >
> > > Regards.
> > >
> >
> >
> > --
> > Claus Ibsen
> > -----------------
> > @davsclaus
> > Camel in Action 2: https://www.manning.com/ibsen2
>


-- 
Claus Ibsen
-----------------
@davsclaus
Camel in Action 2: https://www.manning.com/ibsen2

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