Create two brokers A and B with mesh network connection as shown below
Broker A networkConnector
------------------------------------------
<networkConnectors>
...
<networkConnector name="bridgeToB"
uri="static:(tcp://brokerB-host:61616)"
networkTTL=”2”
decreaseNetworkConsumerPriority="true"
suppressDuplicateQueueSubscriptions="true" />
...
</networkConnectors>
------------------------------------------
------------------------------------------
Broker B networkConnector
------------------------------------------
<networkConnectors>
...
<networkConnector name="bridgeToA"
uri="static:(tcp://brokerA-host:61616)"
networkTTL=”2”
decreaseNetworkConsumerPriority="true"
suppressDuplicateQueueSubscriptions="true" />
...
</networkConnectors>
Steps to produce this problem
1. Send a number of messages (e.g. 100) to broker A
2. create a new consumer connecting to Broker B to consume a message, 100
message were successfully forwarded from broker A to broker B and one
message was consumed by the consumer, there were 99 pending messages left in
broker B
3. Create another new consumer connected to broker A to receive message, but
no messages were forward from broker B back to broker A, as a result, the
consumer times out and no message was delivered from broker A. connect to B
can still get messages
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