[AMQ-1455] Network bridge keeps falling down

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 5.0.0
• Fix Version/s: 5.3.0
• Component/s: Transport

Environment

apache-activemq-5.0-20071008.215641-19, RHEL 4, JDK 1.6.0_02

• Assignee: Robert Davies
• Reporter: David Dossot
• Created: 09/Oct/07 18:34
• Updated: 13/Sep/09 10:43
• Resolved: 13/Sep/09 10:43

Description

The bridge between two nodes keeps falling down after a few minutes of use.

This is maybe a misconfiguration and totally my bad, so here is the network config:

<transportConnectors>
<transportConnector uri="vm://${esb.node.name}" />
<transportConnector uri="tcp://localhost:58080" discoveryUri="rendezvous://dev-esb-node" />
</transportConnectors>

<networkConnectors>
<networkConnector conduitSubscriptions="true" decreaseNetworkConsumerPriority="true" dynamicOnly="true"
networkTTL="64" uri="rendezvous://dev-esb-node" userName="broker" password="XXX" />
</networkConnectors>

${esb.node.name} resolves to "backbone-node-8080" on one box and "collection-node-8080" on the other.

And here are the errors when the bridge crashes:

11:04:46,241 DEBUG [org.apache.activemq.network.DemandForwardingBridge] backbone-node-8080 Forwarding sub on vm://backbone-node-8080#4 from collection-node-8080 : ConsumerInfo

{commandId = 4, responseRequired = true, consumerId = ID:ddo-mbp.local-51198-1191953085196-0:0:1:1, destination = queue://esb.admin.errors, prefetchSize = 500, maximumPendingMessageLimit = 0, browser = true, dispatchAsync = false, selector = null, subscriptionName = null, noLocal = false, exclusive = false, retroactive = false, priority = 0, brokerPath = null, optimizedAcknowledge = false, noRangeAcks = false, additionalPredicate = null}

11:04:46,250 INFO [org.apache.activemq.network.DemandForwardingBridge] Network connection between vm://backbone-node-8080#4 and tcp://esb-backbone-node2.dev.com/10.20.116.14:58
080 shutdown due to a local error: java.lang.NullPointerException
11:04:46,254 DEBUG [org.apache.activemq.network.DemandForwardingBridge] The local Exception was:java.lang.NullPointerException
java.lang.NullPointerException
at org.apache.activemq.network.DemandForwardingBridgeSupport.configureMessage(DemandForwardingBridgeSupport.java:539)
at org.apache.activemq.network.DemandForwardingBridgeSupport.serviceLocalCommand(DemandForwardingBridgeSupport.java:561)
at org.apache.activemq.network.DemandForwardingBridgeSupport$1.onCommand(DemandForwardingBridgeSupport.java:137)
at org.apache.activemq.transport.ResponseCorrelator.onCommand(ResponseCorrelator.java:100)
at org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:67)
at org.apache.activemq.transport.vm.VMTransport.oneway(VMTransport.java:102)
at org.apache.activemq.transport.MutexTransport.oneway(MutexTransport.java:40)
at org.apache.activemq.transport.ResponseCorrelator.oneway(ResponseCorrelator.java:59)
at org.apache.activemq.broker.TransportConnection.dispatch(TransportConnection.java:1184)
at org.apache.activemq.broker.TransportConnection.processDispatch(TransportConnection.java:803)
at org.apache.activemq.broker.TransportConnection.iterate(TransportConnection.java:838)
at org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:118)
at org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:42)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:619)
11:04:46,259 DEBUG [org.apache.activemq.network.DemandForwardingBridge] stopping backbone-node-8080 bridge to collection-node-8080 is disposed already ? false
11:04:46,261 INFO [org.apache.activemq.network.DemandForwardingBridge] backbone-node-8080 bridge to collection-node-8080 stopped