I have configured a network of brokers(cluster) use dynamic discovery. The
typical configuration is
<networkConnectors>
<networkConnector uri="multicast://default?group=com"
dynamicOnly="true"
networkTTL="3"
prefetchSize="1"
decreaseNetworkConsumerPriority="true" />
</networkConnectors>
<transportConnectors>
<transportConnector name="openwire" uri="tcp://0.0.0.0:61616"
discoveryUri="multicast://default?group=com" />
</transportConnectors>
There are 5 brokers in the cluster. 3 brokers(b2-b4) work well, other two(b1
and b5) can't join the cluster, they are started like single broker. One of
them seems can detect other three, it records in log:
INFO | Network connection between vm://dynamic-broker2#0 and
tcp://b4/172.28.16.139:61616(dynamic-broker1) has been established.
INFO | Network connection between vm://dynamic-broker2#2 and
tcp://b2/172.28.16.137:61616(dynamic-broker1) has been established.
INFO | Network connection between vm://dynamic-broker2#4 and
tcp://b3/172.28.16.138:61616(dynamic-broker1) has been established.
WARN | Failed to register MBean:
org.apache.activemq:BrokerName=dynamic-broker2,Type=Connection,ConnectorName=openwire,Connection=NC_dynamic-broker1_outbound
WARN | Failed to register MBean:
org.apache.activemq:BrokerName=dynamic-broker2,Type=Connection,ConnectorName=openwire,Connection=NC_dynamic-broker1_outbound
INFO | dynamic-broker2 bridge to dynamic-broker1 stopped
INFO | dynamic-broker2 bridge to dynamic-broker1 stopped
INFO | Connector vm://dynamic-broker2 Stopped
INFO | dynamic-broker2 bridge to dynamic-broker1 stopped
The other one even can't discover other brokers or discovered by others. All
the 5 brokers are in the same lan and can connect to each other.
If I configured b1 and b5 with static uri, they can formed a cluster and
work well. Do you have any experience over this situation, thanks.
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