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https://issues.apache.org/activemq/browse/AMQ-2774?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=60827#action_60827
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Gary Tully commented on AMQ-2774:
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Great if you have a fix.
to your question, that sounds true to me, but I would have thought that the
second bridge creation attempt is considered distinct because it occurs on a
new connection.
> Network of brokers : Multicast discovery stopped to work
> --------------------------------------------------------
>
> Key: AMQ-2774
> URL: https://issues.apache.org/activemq/browse/AMQ-2774
> Project: ActiveMQ
> Issue Type: Bug
> Affects Versions: 5.2.0
> Environment: Linux
> Reporter: Eric
> Fix For: 5.4.1
>
> Attachments: JMAC-BEA-lastlog.log-20100315
>
>
> Hi everybody
> I experiment a big problem with the multicast discovery algorithm, in a
> network of brokers topology.
> In some conditions, a broker can't reestablish a distant connection even if
> the distant broker is restarted.
> I have the log traces that would help to identify the origin of the problem.
> When there is no discovery/connection error, I can see these 2 lines in the
> activemq log file
> #08 Jun 2010 14:31:30,639 INFO [Multicast Discovery Agent Notifier]
> org.apache.activemq.network.DiscoveryNetworkConnector
> Establishing network connection between from vm://ACCLU-tpnocp04v to
> tcp://tpnocp09v-bus:13100?useLocalHost=false
> #08 Jun 2010 14:31:30,692 INFO [StartLocalBridge:
> localBroker=vm://ACCLU-tpnocp04v#26]
> org.apache.activemq.network.DemandForwardingBridge
> Network connection between vm://ACCLU-tpnocp04v#26 and
> tcp://tpnocp09v-bus/10.18.126.28:13100(MOM-tpnocp09v) has been established.
> When the connection is broken, I can see this line in the log.
> #11 Jun 2010 12:37:32,585 INFO [Multicast Discovery Agent Notifier]
> org.apache.activemq.network.DemandForwardingBridge
> ACCLU-tpnocp04v bridge to MOM-tpnocp09v stopped
> Then the current ACCLU-tpnocp04v broker tries to reestablish the connection :
> #11 Jun 2010 12:37:34,475 INFO [Multicast Discovery Agent Notifier]
> org.apache.activemq.network.DiscoveryNetworkConnector
> Establishing network connection between from vm://ACCLU-tpnocp04v to
> tcp://tpnocp09v-bus:13100?useLocalHost=false
> But, here, the second line of the log ("has been established") doesn't appear
> in the log file !! I don't know exactly if the connection is up or not.
> Then the connection is broken again (look at "Unknown" instead of
> "MOM-tpnocp09v".
> #11 Jun 2010 13:33:58,655 WARN [ActiveMQ Transport:
> tcp://tpnocp09v-bus/10.18.126.28:13100]
> org.apache.activemq.network.DemandForwardingBridge
> Network connection between vm://ACCLU-tpnocp04v#58 and
> tcp://tpnocp09v-bus/10.18.126.28:13100 shutdown due to a remote error:
> java.net.SocketException: Connection reset
> #11 Jun 2010 13:33:58,657 INFO [NetworkBridge]
> org.apache.activemq.network.DemandForwardingBridge^M
> ACCLU-tpnocp04v bridge to Unknown stopped
> And, now, even if I restart the distant broker ( MOM-tpnocp09v ), no line
> (Establishing/Has been established) appears, and no network connection is
> reestablished between ACCLU-tpnocp04v and MOM-tpnocp09v. it seems that this
> ACCLU-tpnocp04v broker can no longer establish a connection with the
> MOM-tpnocp09v broker !!!
> The production teams tell me that this problem seems not to be resolved in
> fuse-5.3.0.6 version.
> Eric-AWL
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