Broker Problem

hi guys,
I am presently working on Wm6.1 with Borker ,I was using Pub-sub for my integration ,previously my pub-sub was working fine ,then later on
i changed my mapping steps for my integration but when i started testing I am facing the problem
“DefaultProducer sending Document to Borker.”
and my Trigger is not invoking the service.
again i started Integration server , i can able to publish and subscribe the documents(like 3 -4 Documents), I can check using server log for that. but after few pub-sub my broker is actiong strange ,
I am able to publish it But its not invoking the Trigger .according to server log i am getting following message …

“DefaultProducer sending Document to Borker.”

but when i restart the broker (just broker) then its invoking my Subscribing service what there in the Queue(bus its guranteed Pub).
Is there any way to test the broker is running or not
or it might be some other issues.
I will appreciate for your advice,

here is the log file this might help . to trace the problem…

2004-08-30 11:08:01 EDT [ISS.0025.0025C] Broker Synchronizer initialized
2004-08-30 11:08:06 EDT [ISS.0098.0042D] Successfully reconnected to Broker. Sto
pped polling
2004-08-30 11:09:38 EDT [ADA.0001.0103V1] Begin local transaction.
2004-08-30 11:09:39 EDT [ADA.0001.0104V1] Commit local transaction.
2004-08-30 11:09:49 EDT [ISS.0098.0051V2] DefaultProducer sending document to Broker.
2004-08-30 11:10:38 EDT [ISS.0098.0051V2] DefaultProducer sending document to Broker.
2004-08-30 11:13:07 EDT [ISS.0098.0051V2] DefaultProducer sending document to Broker.

I don’t know how do you change you mapping steps like you said.If you change the mapping steps in you trigger service(the service you associated with the trigger to process some logic),you should delete the original document type and create new one again.

How do we get Client IDs and Client Groups of a particular broker.
These parameters are required to find the queue size of the broker. Kindly suggest on this issue.