Hello,
We are running a two-broker federation. We have a Java producer (0.5) 
sending messages to Broker 1, which is configured to push to Broker 2, from 
which a consumer is reading the data. The push link is configured 
with: 'qpid-route -d -s queue add broker2 broker1 myexchange myqueue'
We are experiencing duplicate messages.
Here's what happens. The producer sends a steady stream of messages, but we 
cansee that occasionally, the consumer receives duplicate messages. What we see 
in the logs is that the duplicate messages appear to be transmitted when there 
is a failover recovery. But the duplicated messages are duplicates of 
messagesthat were sent on the order of an hour ago.
We are running a version of the C++ broker that has the fix mentioned in 
https://bugzilla.redhat.com/show_bug.cgi?id=510301(inactive federation links 
timeout occasionally) -- we are seeing the timeouts at the 8 minute intervals 
of this bug (we're running 0.5.752581-34, specifically), though 
not continuously, only when idle enough time.
Can anyone offer any insight into this rather strange behavior?
Thanks,Simon


      

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