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From ddossot <da...@dossot.net>
Subject Re: 6 broker node network results in many duplicate messages or "durable consumer in use" errors
Date Tue, 09 Oct 2007 18:11:17 GMT

Here is the exception that makes the bridge die:

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)

Using the latest 5 snapshot, on JDK 6.

As for now, I can not use the network of broker feature. It might be a
mis-configuration on my side.

I will open a JIRA for this, with more details.

D.





ddossot wrote:
> 
> FYI: I have lowered the log threshold of org.apache.activemq.network to
> DEBUG, as it is at this level the stack trace captured in the handling of
> "shutdown due to a local error" is logged, and will report here the
> details of the error that makes the bridge fall down.
> 
> D.
> 
> 
> 
> ddossot wrote:
>> 
>> Same here: I have a simple 2 brokers configuration, which discover
>> themselves via Zeroconf, and the bridge between them regularly fails:
>> 
>> 09:27:49,996 INFO  [org.apache.activemq.network.DemandForwardingBridge]
>> Network connection between vm://node1#2 and
>> tcp://node2/10.20.116.14:58080 shutdown due to a local error: java.lan
>> g.NullPointerException
>> 09:27:50,216 INFO  [org.apache.activemq.network.DemandForwardingBridge]
>> node1 bridge to node2 stopped
>> 
>> D.
>> 
>> 
>> ttmdev wrote:
>>> 
>>> We are also experiencing more or less the same situation, but with a
>>> configuration comprising 2 brokers, one publisher and one durable
>>> subscriber. The brokers and clients are using 'discovery'. 
>>> 
>>> Has anyone looked into this? 
>>> 
>>> Joe  
>>>  
>>> 
>>> Naz Irizarry wrote:
>>>> 
>>>> BACKGROUND
>>>> 
>>>> I am using ActiveMQ 4.1.1 under Java 5.  My 6 broker test-network is  
>>>> illustrated in the attachment.  The brokers would not be colocated in  
>>>> deployment though they are all running on one machine for testing.   
>>>> In deployment there would be clients on all nodes.
>>>> 
>>>> 
>>>> The clients FN1, FN2, and FN3 create serveral durable topics and  
>>>> subscribe to each other's topics.  The brokers use networkTTL="3",  
>>>> conduitSubscriptions="false", dynamicOnly="false"  Messages are  
>>>> acknowledged immediately upon receipt by the clients.
>>>> 
>>>> 
>>>> PROBLEMS
>>>> 
>>>> 1) Client FN1 sees messages from FN2 and FN3 each delivered twice
>>>> 2) Client FN2 sees all messages from FN1 delivered 4 times and  
>>>> messages from FN3 delivered twice
>>>> 3) Client FN3 sees all messages from FN1 delivered 4 times and  
>>>> messages from FN2 delivered twice
>>>> The duplicates arrive approximately one second apart.
>>>> 
>>>> If I stop the brokers, zero out persistent stores, change the brokers  
>>>> to conduitSubscriptions="true" restart the brokers and I bring up  
>>>> FN1, FN2, and FN3 (in that order) then when FN3 comes up:
>>>> 
>>>> 1) At broker bFN2 I get the error " INFO   
>>>> DemandForwardingBridge         - Network connection between vm:// 
>>>> bFn2#4 and ssl://localhost/127.0.0.1:9124 shutdown due to a local  
>>>> error: javax.jms.JMSException: Durable consumer is in use for client:  
>>>> NC_bEn2_inboundbFn2 and subscriptionName: bFn2_ds.Union-3"
>>>> 2) At broker vFN3 I get the error  " INFO   
>>>> DemandForwardingBridge         - Network connection between vm:// 
>>>> bFn3#0 and ssl://localhost/127.0.0.1:9124 shutdown due to a local  
>>>> error: javax.jms.JMSException: Durable consumer is in use for client:  
>>>> NC_bEn2_inboundbFn3 and subscriptionName: bFn3_da.Availability"
>>>> 
>>>> Is this a misconfiguration problem or are these known problems?
>>>> 
>>>> 
>>>> Below are 3 of the configurations
>>>> 
>>>> --------------
>>>> Configuration for bEn2:
>>>> 
>>>> <beans>
>>>> 
>>>>    <bean  
>>>> class="org.springframework.beans.factory.config.PropertyPlaceholderConfi

>>>> gurer"/>
>>>> 
>>>>    <broker brokerName="bEn2" useJmx="false" persistent="false"  
>>>> xmlns="http://activemq.org/config/1.0">
>>>> 
>>>>      <destinationPolicy>
>>>>        <policyMap>
>>>>          <policyEntries>
>>>> 
>>>>            <policyEntry topic="ds.>">
>>>>              <dispatchPolicy>
>>>>                <strictOrderDispatchPolicy/>
>>>>              </dispatchPolicy>
>>>>              <subscriptionRecoveryPolicy>
>>>>                <timedSubscriptionRecoveryPolicy  
>>>> recoverDuration="900000"/>
>>>>              </subscriptionRecoveryPolicy>
>>>> 
>>>>            </policyEntry>
>>>>            <policyEntry topic="da.>">
>>>>              <dispatchPolicy>
>>>>                <strictOrderDispatchPolicy/>
>>>>              </dispatchPolicy>
>>>>              <subscriptionRecoveryPolicy>
>>>>                <timedSubscriptionRecoveryPolicy  
>>>> recoverDuration="300000"/>
>>>>              </subscriptionRecoveryPolicy>
>>>>            </policyEntry>
>>>> 
>>>>          </policyEntries>
>>>>        </policyMap>
>>>>      </destinationPolicy>
>>>> 
>>>>      <persistenceAdapter>
>>>>        <journaledJDBC journalLogFiles="5"  
>>>> dataDirectory="$activemq.base/activemq-data"/>
>>>>      </persistenceAdapter>
>>>> 
>>>>      <transportConnectors>
>>>>        <!-- 9123 is for local access -->
>>>>        <!-- 9124 is used to bridge the activemq's to each other -->
>>>>        <transportConnector name="c1" uri="tcp://localhost:9123"/>
>>>>        <transportConnector name="c2" uri="ssl://localhost:9124"/>
>>>>      </transportConnectors>
>>>> 
>>>>      <networkConnectors>
>>>> 
>>>>        <!-- Cross Connection to Other Enterprise node -->
>>>>        <networkConnector name="entBridge1"
>>>>          uri="static:(ssl://localhost:9024)"
>>>>          dynamicOnly="false"
>>>>          conduitSubscriptions="false"
>>>>          networkTTL="3"
>>>>          prefetchSize="10"
>>>>        >
>>>> 
>>>>        </networkConnector>
>>>> 
>>>>        <!-- Connection to Forward Node 2 -->
>>>>        <networkConnector name="forward2"
>>>>          uri="static:(ssl://localhost:9324)"
>>>>          dynamicOnly="false"
>>>>          conduitSubscriptions="false"
>>>>          prefetchSize="10"
>>>>          networkTTL="3"
>>>>        >
>>>> 
>>>>        </networkConnector>
>>>> 
>>>>        <!-- Connection to Forward Node 3 -->
>>>>        <networkConnector name="forward3"
>>>>          uri="static:(ssl://localhost:9424)"
>>>>          dynamicOnly="false"
>>>>          conduitSubscriptions="false"
>>>>          prefetchSize="10"
>>>>          networkTTL="3"
>>>>        >
>>>>        </networkConnector>
>>>>      </networkConnectors>
>>>>    </broker>
>>>> </beans>
>>>> 
>>>> -------------
>>>> Configuration for bFn2:
>>>> 
>>>> <beans>
>>>> 
>>>>    <!-- Allows us to use system properties as variables in this  
>>>> configuration file -->
>>>>    <bean  
>>>> class="org.springframework.beans.factory.config.PropertyPlaceholderConfi

>>>> gurer"/>
>>>> 
>>>>    <broker brokerName="bFn2" useJmx="false" persistent="false"  
>>>> xmlns="http://activemq.org/config/1.0">
>>>> 
>>>>      <destinationPolicy>
>>>>        <policyMap>
>>>>          <policyEntries>
>>>> 
>>>>            <policyEntry topic="ds.>">
>>>>              <dispatchPolicy>
>>>>                <strictOrderDispatchPolicy/>
>>>>              </dispatchPolicy>
>>>>              <subscriptionRecoveryPolicy>
>>>>                <timedSubscriptionRecoveryPolicy  
>>>> recoverDuration="900000"/>
>>>>              </subscriptionRecoveryPolicy>
>>>> 
>>>>            </policyEntry>
>>>>            <policyEntry topic="da.>">
>>>>              <dispatchPolicy>
>>>>                <strictOrderDispatchPolicy/>
>>>>              </dispatchPolicy>
>>>>              <subscriptionRecoveryPolicy>
>>>>                <timedSubscriptionRecoveryPolicy  
>>>> recoverDuration="300000"/>
>>>>              </subscriptionRecoveryPolicy>
>>>>            </policyEntry>
>>>> 
>>>>          </policyEntries>
>>>>        </policyMap>
>>>>      </destinationPolicy>
>>>> 
>>>>      <persistenceAdapter>
>>>>        <journaledJDBC journalLogFiles="5"  
>>>> dataDirectory="$activemq.base/activemq-data"/>
>>>>      </persistenceAdapter>
>>>> 
>>>>      <transportConnectors>
>>>>        <!-- 9023 is for local access -->
>>>>        <!-- 9024 is used to bridge the activemq's to each other -->
>>>>        <transportConnector name="c1" uri="tcp://localhost:9323"/>
>>>>        <transportConnector name="c2" uri="ssl://localhost:9324"/>
>>>>      </transportConnectors>
>>>> 
>>>>      <networkConnectors>
>>>> 
>>>>        <!-- Connection to Enterprise node 2 -->
>>>>        <networkConnector name="en2a"
>>>>          uri="static:(ssl://localhost:9124)"
>>>>          dynamicOnly="false"
>>>>          conduitSubscriptions="false"
>>>>          networkTTL="3"
>>>>          prefetchSize="10"
>>>>        >
>>>>        </networkConnector>
>>>> 
>>>>      </networkConnectors>
>>>>    </broker>
>>>> </beans>
>>>> 
>>>> -------------
>>>> Configuration for bFn3:
>>>> 
>>>> <beans>
>>>>    <bean  
>>>> class="org.springframework.beans.factory.config.PropertyPlaceholderConfi

>>>> gurer"/>
>>>> 
>>>>    <broker brokerName="bFn3" useJmx="false" persistent="false"  
>>>> xmlns="http://activemq.org/config/1.0">
>>>> 
>>>>      <destinationPolicy>
>>>>        <policyMap>
>>>>          <policyEntries>
>>>> 
>>>>            <policyEntry topic="ds.>">
>>>>              <dispatchPolicy>
>>>>                <strictOrderDispatchPolicy/>
>>>>              </dispatchPolicy>
>>>>              <subscriptionRecoveryPolicy>
>>>>                <timedSubscriptionRecoveryPolicy  
>>>> recoverDuration="900000"/>
>>>>              </subscriptionRecoveryPolicy>
>>>>            </policyEntry>
>>>> 
>>>>            <policyEntry topic="da.>">
>>>>              <dispatchPolicy>
>>>>                <strictOrderDispatchPolicy/>
>>>>              </dispatchPolicy>
>>>>              <subscriptionRecoveryPolicy>
>>>>                <timedSubscriptionRecoveryPolicy  
>>>> recoverDuration="300000"/>
>>>>              </subscriptionRecoveryPolicy>
>>>>            </policyEntry>
>>>> 
>>>>          </policyEntries>
>>>>        </policyMap>
>>>>      </destinationPolicy>
>>>> 
>>>>      <persistenceAdapter>
>>>>        <journaledJDBC journalLogFiles="5"  
>>>> dataDirectory="$activemq.base/activemq-data"/>
>>>>      </persistenceAdapter>
>>>> 
>>>>      <transportConnectors>
>>>>        <!-- 9423 is for internal access -->
>>>>        <!-- 9424 is used to bridge the activemq's to each other -->
>>>>        <transportConnector name="c1" uri="tcp://localhost:9423"/>
>>>>        <transportConnector name="c2" uri="ssl://localhost:9424"/>
>>>>      </transportConnectors>
>>>> 
>>>>      <networkConnectors>
>>>> 
>>>>        <!-- Connection to Enterprise node 2 -->
>>>>        <networkConnector name="en2b"
>>>>          uri="static:(ssl://localhost:9124)"
>>>>          dynamicOnly="false"
>>>>          conduitSubscriptions="false"
>>>>          prefetchSize="10"
>>>>          networkTTL="3"
>>>>        >
>>>>        </networkConnector>
>>>>      </networkConnectors>
>>>>    </broker>
>>>> </beans>
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>> 
>>> 
>> 
>> 
> 
> 

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