Re: Does The ActiveMQ treat the same clientID consumer on different broker as different consumer?

Pre-configuration to set up network:
broker A      localhost:61616      activemq_61616.xml
broker B      localhost:51616      activemq_51616.xml
For localhost:61616 I change the networkConnector in activemq.xml from
<networkConnector name="default-nc" uri="multicast://default"/>
to
<networkConnector name="61616" uri="static://(tcp://localhost:51616)"/>
and for transportConnector from
<transportConnector name="openwire" uri="tcp://localhost:61616" discoveryUri="multicast://default"/>
to
<transportConnector name="openwire" uri="tcp://localhost:61616" />

Also changed for localhost:51616 and alter the port from 61616 to 51616 and others to perish conflict.

Steps:
1. Start the broker A and broker B
2. Open a command window and execute 'ant consumer -Durl="tcp://localhost:61616" -Dtopic=true -Dsubject="TOPIC.TEST" -Ddurable=true -Dmax=1'
2. Another command window with 'ant producer -Durl="failover:(tcp://localhost:51616,tcp://localhost:61616)" -Dtopic=true -Dsubject="TOPIC.TEST" -Ddurable=true -Dmax=1'. We receive the message. the client1 has registered.
3. Re-execute the command on step 2 to send messgae again.
4. Now switch to localhost:51616 to listen 'ant consumer -Durl="tcp://localhost:51616" -Dtopic=true -Dsubject="TOPIC.TEST" -Ddurable=true -Dmax=1'. Unfortunately we can't receive.
5. Send message with the previous send command. the listener on port 51616 received.
6. Switch back to 61616 'ant consumer -Durl="tcp://localhost:61616" -Dtopic=true -Dsubject="TOPIC.TEST" -Ddurable=true -Dmax=1'. We received the message sent on step 3.
7. Listen again on 61616 received the message sent on step 5. Then we received twice.

HarveyCn wrote:

Broker A and broker B build up a network of brokers.
Assuming in this case a client registered on broker A with clientID "client1" and somehow he lost the connection, at that time some messages came, next time when the "client1" resume the connection on broker B, he supposed to receive the messages when he is not here, right? But I failed on this case. The "client1" can't receive the messages until he re-connect to broker A. Actually on broker A he would receive the messages which he has received in brokers B again.
Base on that I draw a conclusion that The ActiveMQ treat the same clientID consumer on different broker as different consumer. But if the broker A broken, never came back, we would lost some messages. Is it possible that we recover the messages? I knew master/slave but can we build up a network with two master/slave pairs and how?