How to handle failure when sending messages to remote queues from OAS10.1.3

Question

Hi,
Here is my problem. IN my project, I have a MDB which is looking for message in a queue and once a message arrived, it supposed to send the message to remote queues.
Assume that there are 3 remote queues, and my mdb is trying to send the message to all the 3 remote queues,
1) My problem is, If one of the remote queue is not reachable or down, then the MDB should be able to resend it several times until it reaches the failed remote queue.
2) At the same time, I dont want to resend the messages(duplicate) to the queues which are successful ones.
Please suggest me some solution for this in JMS.
My MDB deployed at 10.1.3 and assume that remote queue can be in either another 10.1.3 or WAS 6.0(Optional).
Thanks and regards,
SS.

Answer 1

Hi,
1) My problem is, If one of the remote queue is not reachable or down, then the MDB should be able to resend it several times until it reaches the failed remote queue.
Not very sure what is your question, depending on if you want to resend the message if one of three queues is down.
If the message has to arrive to a certain destination while mdb received it, you may try to reconnnect and resend the message in a couple of times. Perhaps you need a couter or timeout to limit the number of time to retry or the period to retry.
Is that what you are asking.
2) At the same time, I dont want to resend the messages(duplicate) to the queues which are successful ones.
While sending message to a queue, those implementation is within the exception try/catch block, so any resend failure (JMSException) will fall into the catch block I guess. And we can probably use that exception to determine if the message is able to send to remote queue, if not, keep resending util it is over the limit of retries. For example:
onMessage(Message){
resend(message, counter);
public void resend(message, counter) {
try{
if (counter <= retryLimit){
.... // do the reconnect or/and resend operation
}catch(exception e){
resend(message, counter++);
If the above is not what you are asking, please clarify a bit.
Rocky