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https://issues.apache.org/jira/browse/CAMEL-20866?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17854666#comment-17854666
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Claus Ibsen commented on CAMEL-20866:
-------------------------------------
We could make this for the following
seda (in only)
disruptor (in only)
wiretap (copy mode)
as they are intended to execute the copied exchange independently
then we avoid doing this in a central place in the routing engine with overhead
for normal use-cases
> SEDA with exchangepattern InOnly gives sometimes multiple responses
> -------------------------------------------------------------------
>
> Key: CAMEL-20866
> URL: https://issues.apache.org/jira/browse/CAMEL-20866
> Project: Camel
> Issue Type: Bug
> Components: camel-seda
> Affects Versions: 4.6.0
> Reporter: Raymond
> Assignee: Claus Ibsen
> Priority: Minor
> Attachments: main-xml.zip
>
>
> I have Camel 4.6 running on Java 21
> When I use the following curl:
> {code:java}
> curl -X POST --header "Content-Type: text/plain" --data 'x'
> http://localhost:9001/test{code}
> To test the following route:
> {code:java}
> <routes id="camel" xmlns="http://camel.apache.org/schema/spring";>
> <route id="1">
> <from uri="jetty:http://0.0.0.0:9001/test"/>
> <to uri="seda:2?exchangePattern=InOut"/>
> </route>
> <route id="2">
> <from uri="seda:2"/>
> <setBody>
> <constant>Y</constant>
> </setBody>
> </route>
> </routes>{code}
> This works as expected and the result is Y.
> Now I changed the exchangepattern from 'InOut' to 'InOnly':
> {code:java}
> <routes id="camel" xmlns="http://camel.apache.org/schema/spring";>
> <route id="1">
> <from uri="jetty:http://0.0.0.0:9001/test"/>
> <to uri="seda:2?exchangePattern=InOnly"/>
> </route>
> <route id="2">
> <from uri="seda:2"/>
> <setBody>
> <constant>Y</constant>
> </setBody>
> </route>
> </routes>{code}
> When I call this flow with curl multiple times, I sometimes get the result:
> X
> And the other time:
> XX
> So the result is returned twice or even more times. I would expect only to
> get the output X (which for example works this way when I use ActiveMQ).
> It may take more than 10 times before you can see the double responses, but
> this behavior can be easier reproduced by adding more SEDA endpoints:
> {code:java}
> <routes id="camel" xmlns="http://camel.apache.org/schema/spring";> <route
> id="1"> <from uri="jetty:http://0.0.0.0:9001/test"/> <to
> uri="seda:2?exchangePattern=InOnly"/> </route> <route id="2"> <from
> uri="seda:2"/> <to uri="seda:3"/> </route> <route id="3"> <from
> uri="seda:3"/> <to uri="seda:4"/> </route> <route id="4"> <from
> uri="seda:4"/> <to uri="seda:5"/> </route> <route id="5"> <from
> uri="seda:5"/> <setBody> <constant>Y</constant> </setBody>
> </route></routes>{code}
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