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https://issues.apache.org/activemq/browse/AMQ-1825?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=51133#action_51133
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Michael Chen commented on AMQ-1825:
-----------------------------------
If in step 2 above, a timer is run that triggers a message being sent to a
topic every second via a vm transport. then it will produce a different
exception at step 4:
ERROR MasterBroker - Slave Failed
java.lang.NullPointerException
at org.apache.activemq.broker.region.Topic.send(Topic.java:266)
at
org.apache.activemq.broker.region.AbstractRegion.send(AbstractRegion.java:350)
at
org.apache.activemq.broker.region.RegionBroker.send(RegionBroker.java:437)
at
org.apache.activemq.broker.TransactionBroker.send(TransactionBroker.java:224)
at org.apache.activemq.broker.BrokerFilter.send(BrokerFilter.java:126)
at
org.apache.activemq.broker.CompositeDestinationBroker.send(CompositeDestinationBroker.java:95)
at
org.apache.activemq.broker.MutableBrokerFilter.send(MutableBrokerFilter.java:133)
at
org.apache.activemq.broker.TransportConnection.processMessage(TransportConnection.java:450)
at
org.apache.activemq.command.ActiveMQMessage.visit(ActiveMQMessage.java:639)
at
org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:305)
at
org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:179)
at
org.apache.activemq.transport.ResponseCorrelator.onCommand(ResponseCorrelator.java:104)
at
org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:68)
at
org.apache.activemq.transport.vm.VMTransport.iterate(VMTransport.java:205)
at
org.apache.activemq.thread.DedicatedTaskRunner.runTask(DedicatedTaskRunner.java:98)
at
org.apache.activemq.thread.DedicatedTaskRunner$1.run(DedicatedTaskRunner.java:36)
> Pure MasterSlave doesn't work
> -----------------------------
>
> Key: AMQ-1825
> URL: https://issues.apache.org/activemq/browse/AMQ-1825
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker
> Affects Versions: 5.1.0
> Reporter: Dima
> Fix For: 5.3.0
>
>
> Slave doen't synchronize state with master
> 1.If master has messages which absent in slave, these messages won't
> replicate ot slave after attaching slave to master.
> 2.If remove messages via JMX purge() in master, messages in slave won't remove
> 3. If slave has messages wich absent in master, these messages won't remove
> when slave is attaching to master
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