Hi Thomas,
Thanks for your prompt inputs.
I'll try to explain our implementation for message exchange handling so that
you could help us resolve this issue like you did for yourself.
BeanA:
public class BeanA implements MessageExchangeListener {
public void onMessageExchange(MessageExchange reverseExchange) throws
MessagingException {
if (reverseExchange.getStatus() == ExchangeStatus.ACTIVE) {
// 1) create new Message Exchange to route a message to BeanB.
//DeliveryChannel is spring injected in the bean
ServiceEndpoint endPoint = context.getEndpoint(service,endpoint);
InOnly forwardExchange =
deliverychannel.createExchangeFactory(endPoint)
// sending message asynchronosly
channel.send(forwardExchange );
}
}
BeanB:
public class BeanB implements MessageExchangeListener {
public void onMessageExchange(MessageExchange reverseExchange) throws
MessagingException {
if (reverseExchange.getStatus() == ExchangeStatus.ACTIVE) {
// 1) create new Message Exchange to route a message to BeanC.
//DeliveryChannel is spring injected in the bean
ServiceEndpoint endPoint = context.getEndpoint(service,endpoint);
InOnly forwardExchange =
deliverychannel.createExchangeFactory(endPoint)
// sending message asynchronosly
channel.send(forwardExchange );
//2) Now send Done message to BeanA
reverseExchange.setStatus(ExchangeStatus.DONE);
// sending message asynchronosly
channel.send(forwardExchange );
}
}
This is the way we're managing message exchanges.
Please note we are using IN-ONLY MEP.
Could you please provide us some inputs based on this info.
or please let me know if you need some additional information to see the
issue.
thanks and regards
tarandeep
tterm wrote:
>
> I would definitly say that there is an mistake in your message exchange
> handling. We had the same some time ago but could solve it. I can't see
> what you exactly do in your code. Is it InOnly, InOut or whatever. Do
> you check the state always?
>
> Cheers
> Thomas
>
> taran wrote:
>> HI All,
>>
>> We have a JBI component deployed on servicemix.We're facing an issue that
>> after using this JBI component for some requests, ServiceMix hangs and
>> stops
>> responding to further requests at HTTPEnd Point.
>>
>> Just wanted to clarify one thing.
>>
>> If we have a XBEAN "A" which creates new MessageExchange and route a
>> message
>> to XBEAN "B".
>>
>> XBEAN "B" creates another MesageExchange and route it to XBEAN "C"
>> asynchronously and immediately send "Done" asynchronously on the reverse
>> MessageExchange for XBEAN "A".
>>
>> XBEAN "C" does some job and send "DONE" asynchronously on the reverse
>> MessageExchange for XBEAN "B"
>>
>> Do you think this implementation (assuming there are no errors in the
>> flow
>> at runtime) can lead to servicemix being hung and stops responding to
>> requests (may be due to some memory leak or something else).
>> please advice.
>>
>>
>> ---- -------------------------
>> One of my peers responsed by saying:
>>
>> The only thing I can think off is is A & B are listening to DONE messages
>> or
>> not. B & C send DONE is fine – but that just puts these messages on the
>> bus.
>> It is responsibility og A & B to pick it up from the bus. If they don’t
>> pick
>> it up – then those messages will remain on the bus – and there is a limit
>> to
>> number of messages on the bus. As soon as this limit is reached – no
>> component is able to send messages on the bus and it will appear as
>> ServiceMix has hanged & stopped responding.
>>
>> ---------------------------------
>>
>> Can anybody provide inputs on this.
>> as to how we can pick "Done" messages in the XBEANs and resolve this
>> issue
>>
>> regards
>> tarandeep
>
>
> --
> Thomas Termin
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