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From MQ Newbie <su...@sphsearch.sg>
Subject Re: Slave automatically switch to Master even though Master is up
Date Thu, 03 Jan 2008 09:09:08 GMT

In addition to the previous post, after the slave becomes the Master when jms
message is sent i have exception in both the master and slave as listed
below. 

Do you think that this error is caused by the the previously discussed
Master Slave error?

Master:

ERROR MasterBroker                   - Slave Failed
java.lang.IllegalStateException: Cannot lookup a consumer from a connection
that had not been registered: ID:
        at
org.apache.activemq.broker.MapTransportConnectionStateRegister.lookupConnectionState(MapTransportConnectionStateRegister.java:63)
        at
org.apache.activemq.broker.TransportConnection.lookupConnectionState(TransportConnection.java:1301)
        at
org.apache.activemq.broker.TransportConnection.getConsumerBrokerExchange(TransportConnection.java:1209)
        at
org.apache.activemq.broker.TransportConnection.processMessageAck(TransportConnection.java:439)
        at org.apache.activemq.command.MessageAck.visit(MessageAck.java:196)
        at
org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:281)
        at
org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:178)
        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.iterate(VMTransport.java:202)
        at
org.apache.activemq.thread.DedicatedTaskRunner.runTask(DedicatedTaskRunner.java:98)
        at
org.apache.activemq.thread.DedicatedTaskRunner$1.run(DedicatedTaskRunner.java:36)
ERROR MasterBroker                   - Slave Failed
java.lang.IllegalStateException: Cannot lookup a consumer from a connection
that had not been registered: ID:
        at
org.apache.activemq.broker.MapTransportConnectionStateRegister.lookupConnectionState(MapTransportConnectionStateRegister.java:63)
        at
org.apache.activemq.broker.TransportConnection.lookupConnectionState(TransportConnection.java:1301)
        at
org.apache.activemq.broker.TransportConnection.getConsumerBrokerExchange(TransportConnection.java:1209)
        at
org.apache.activemq.broker.TransportConnection.processMessageAck(TransportConnection.java:439)
        at org.apache.activemq.command.MessageAck.visit(MessageAck.java:196)
        at
org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:281)
        at
org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:178)
        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.iterate(VMTransport.java:202)
        at
org.apache.activemq.thread.DedicatedTaskRunner.runTask(DedicatedTaskRunner.java:98)
        at
org.apache.activemq.thread.DedicatedTaskRunner$1.run(DedicatedTaskRunner.java:36)
ERROR MasterBroker                   - Slave Failed
java.lang.IllegalStateException: Cannot lookup a connection that had not
been registered: ID:
        at
org.apache.activemq.broker.MapTransportConnectionStateRegister.lookupConnectionState(MapTransportConnectionStateRegister.java:93)
        at
org.apache.activemq.broker.TransportConnection.lookupConnectionState(TransportConnection.java:1313)
        at
org.apache.activemq.broker.TransportConnection.processCommitTransactionOnePhase(TransportConnection.java:394)
        at
org.apache.activemq.command.TransactionInfo.visit(TransactionInfo.java:100)
        at
org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:281)
        at
org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:178)
        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.iterate(VMTransport.java:202)
        at
org.apache.activemq.thread.DedicatedTaskRunner.runTask(DedicatedTaskRunner.java:98)
        at
org.apache.activemq.thread.DedicatedTaskRunner$1.run(DedicatedTaskRunner.java:36)
ERROR MasterBroker                   - Slave Failed
java.lang.IllegalStateException: Cannot lookup a connection that had not
been registered: ID:
        at
org.apache.activemq.broker.MapTransportConnectionStateRegister.lookupConnectionState(MapTransportConnectionStateRegister.java:93)
        at
org.apache.activemq.broker.TransportConnection.lookupConnectionState(TransportConnection.java:1313)
        at
org.apache.activemq.broker.TransportConnection.processCommitTransactionOnePhase(TransportConnection.java:394)
        at
org.apache.activemq.command.TransactionInfo.visit(TransactionInfo.java:100)
        at
org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:281)
        at
org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:178)
        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.iterate(VMTransport.java:202)
        at
org.apache.activemq.thread.DedicatedTaskRunner.runTask(DedicatedTaskRunner.java:98)
        at
org.apache.activemq.thread.DedicatedTaskRunner$1.run(DedicatedTaskRunner.java:36)


Slave:



ERROR Service                        - Async error occurred:
java.lang.IllegalStateException: Cannot remove a producer from a session
that had not been registered: ID:
java.lang.IllegalStateException: Cannot remove a producer from a session
that had not been registered: ID:
        at
org.apache.activemq.broker.TransportConnection.processRemoveProducer(TransportConnection.java:500)
        at org.apache.activemq.command.RemoveInfo.visit(RemoveInfo.java:66)
        at
org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:281)
        at
org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:178)
        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.iterate(VMTransport.java:202)
        at
org.apache.activemq.thread.DedicatedTaskRunner.runTask(DedicatedTaskRunner.java:98)
        at
org.apache.activemq.thread.DedicatedTaskRunner$1.run(DedicatedTaskRunner.java:36)
ERROR Service                        - Async error occurred:
java.lang.IllegalStateException: Cannot remove session that had not been
registered: ID:
java.lang.IllegalStateException: Cannot remove session that had not been
registered: ID:
        at
org.apache.activemq.broker.TransportConnection.processRemoveSession(TransportConnection.java:575)
        at org.apache.activemq.command.RemoveInfo.visit(RemoveInfo.java:62)
        at
org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:281)
        at
org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:178)
        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.iterate(VMTransport.java:202)
        at
org.apache.activemq.thread.DedicatedTaskRunner.runTask(DedicatedTaskRunner.java:98)
        at
org.apache.activemq.thread.DedicatedTaskRunner$1.run(DedicatedTaskRunner.java:36)
ERROR Service                        - Async error occurred:
java.lang.IllegalStateException: Cannot remove session that had not been
registered: ID:
java.lang.IllegalStateException: Cannot remove session that had not been
registered: ID:
        at
org.apache.activemq.broker.TransportConnection.processRemoveSession(TransportConnection.java:575)
        at org.apache.activemq.command.RemoveInfo.visit(RemoveInfo.java:62)
        at
org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:281)
        at
org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:178)
        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.iterate(VMTransport.java:202)
        at
org.apache.activemq.thread.DedicatedTaskRunner.runTask(DedicatedTaskRunner.java:98)
        at
org.apache.activemq.thread.DedicatedTaskRunner$1.run(DedicatedTaskRunner.java:36)
ERROR Service                        - Async error occurred:
java.lang.IllegalStateException: Cannot lookup a connection that had not
been registered: ID:
java.lang.IllegalStateException: Cannot lookup a connection that had not
been registered: ID:
        at
org.apache.activemq.broker.MapTransportConnectionStateRegister.lookupConnectionState(MapTransportConnectionStateRegister.java:93)
        at
org.apache.activemq.broker.TransportConnection.lookupConnectionState(TransportConnection.java:1313)
        at
org.apache.activemq.broker.TransportConnection.processBeginTransaction(TransportConnection.java:343)
        at
org.apache.activemq.command.TransactionInfo.visit(TransactionInfo.java:94)
        at
org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:281)
        at
org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:178)
        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.iterate(VMTransport.java:202)
        at
org.apache.activemq.thread.DedicatedTaskRunner.runTask(DedicatedTaskRunner.java:98)
        at
org.apache.activemq.thread.DedicatedTaskRunner$1.run(DedicatedTaskRunner.java:36)




MQ Newbie wrote:
> 
> I am running MySQL version 5.0.46. 
> 
> 
> James.Strachan wrote:
>> 
>> The key lines of the log are...
>> 
>> INFO  DefaultDatabaseLocker          - Attempting to acquire the
>> exclusive
>> lock to become the Master broker
>> INFO  DefaultDatabaseLocker          - Becoming the master on dataSource:
>> org.apache.commons.dbcp.BasicDataSource@4c221e9e
>> 
>> it looks like your configuration and MySQL version are not honouring
>> the exclusive database lock. What version of MySQL are you using? We
>> might need to patch the SQL used to ensure the lock works.
>> 
>> 
>> On 28/12/2007, MQ Newbie <suwei@sphsearch.sg> wrote:
>>>
>>> Hi,
>>>
>>> I started the Master broker followed by the Slave broker. Everything was
>>> running fine at the beginning but I don;t understand how the Slave could
>>> took over as Master even the Master broker is up. Please help.
>>>
>>> See logs before and after ****** :
>>>
>>>
>>> I have used the following configuration:
>>>
>>> Master:
>>> ======
>>>
>>>  <broker xmlns="http://activemq.org/config/1.0" brokerName="mq01">
>>>
>>>     <!-- Destination specific policies using destination names or
>>> wildcards
>>> -->
>>>     <destinationPolicy>
>>>       <policyMap>
>>>         <policyEntries>
>>>
>>>           <policyEntry topic="FOO.>" producerFlowControl="false"
>>> memoryLimit="1mb">
>>>             <dispatchPolicy>
>>>               <strictOrderDispatchPolicy/>
>>>             </dispatchPolicy>
>>>             <subscriptionRecoveryPolicy>
>>>               <lastImageSubscriptionRecoveryPolicy/>
>>>             </subscriptionRecoveryPolicy>
>>>           </policyEntry>
>>>
>>>         </policyEntries>
>>>       </policyMap>
>>>     </destinationPolicy>
>>>
>>>
>>>     <!-- The transport connectors ActiveMQ will listen to -->
>>>     <transportConnectors>
>>>        <transportConnector name="openwire" uri="tcp://mq01:61616"
>>> discoveryUri="multicast://default"/>
>>>     </transportConnectors>
>>>
>>>
>>>     <!-- Or if you want to use pure JDBC without a journal -->
>>>     <persistenceAdapter>
>>>         <jdbcPersistenceAdapter dataSource="#mysql-ds"/>
>>>     </persistenceAdapter>
>>>
>>>     <!--  Use the following to set the broker memory limit
>>>         <systemUsage>
>>>                     <systemUsage>
>>>                             <memoryUsage>
>>>                                 <memoryUsage limit="10 mb"
>>> percentUsageMinDelta="20"/>
>>>                             </memoryUsage>
>>>                             <tempUsage>
>>>                                 <tempUsage limit="100 mb"/>
>>>                             </tempUsage>
>>>                             <storeUsage>
>>>                                 <storeUsage limit="1 gb" name="foo"/>
>>>                             </storeUsage>
>>>                     </systemUsage>
>>>             </systemUsage>
>>>    -->
>>>
>>>     <!-- Use the following to configure how ActiveMQ is exposed in JMX
>>>     <managementContext>
>>>        <managementContext connectorPort="1099"
>>> jmxDomainName="org.apache.activemq"/>
>>>     </managementContext>
>>>     -->
>>>
>>>   </broker>
>>>
>>>   <!-- lets create a command agent to respond to message based admin
>>> commands on the ActiveMQ.Agent topic -->
>>>   <commandAgent xmlns="http://activemq.org/config/1.0"/>
>>>
>>>
>>>   <!-- An embedded servlet engine for serving up the Admin console -->
>>>   <jetty xmlns="http://mortbay.com/schemas/jetty/1.0">
>>>     <connectors>
>>>       <nioConnector port="8161" />
>>>     </connectors>
>>>
>>>     <handlers>
>>>       <webAppContext contextPath="/admin"
>>> resourceBase="${activemq.base}/webapps/admin" logUrlOnStart="true" />
>>>       <webAppContext contextPath="/demo"
>>> resourceBase="${activemq.base}/webapps/demo" logUrlOnStart="true" />
>>>     </handlers>
>>>   </jetty>
>>>
>>>
>>>
>>>   <!-- MySql DataSource Sample Setup -->
>>>   <bean id="mysql-ds" class="org.apache.commons.dbcp.BasicDataSource"
>>> destroy-method="close">
>>>     <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
>>>     <property name="url"
>>> value="jdbc:mysql://mqdb/activemq?relaxAutoCommit=true"/>
>>>     <property name="username" value="activemq"/>
>>>     <property name="password" value="activemq"/>
>>>     <property name="poolPreparedStatements" value="true"/>
>>>   </bean>
>>>
>>>
>>>
>>> Slave:
>>> =====
>>>
>>>   <broker xmlns="http://activemq.org/config/1.0" brokerName="mq02"
>>> masterConnectorURI="tcp://192.168.30.123:61616"
>>> shutdownOnMasterFailure="false" >
>>>
>>>     <!-- Destination specific policies using destination names or
>>> wildcards
>>> -->
>>>     <destinationPolicy>
>>>       <policyMap>
>>>         <policyEntries>
>>>
>>>           <policyEntry topic="FOO.>" producerFlowControl="false"
>>> memoryLimit="1mb">
>>>             <dispatchPolicy>
>>>               <strictOrderDispatchPolicy/>
>>>             </dispatchPolicy>
>>>             <subscriptionRecoveryPolicy>
>>>               <lastImageSubscriptionRecoveryPolicy/>
>>>             </subscriptionRecoveryPolicy>
>>>           </policyEntry>
>>>
>>>         </policyEntries>
>>>       </policyMap>
>>>     </destinationPolicy>
>>>
>>>
>>>     <!-- The transport connectors ActiveMQ will listen to -->
>>>     <transportConnectors>
>>>        <transportConnector name="openwire" uri="tcp://mq02:61616"
>>> discoveryUri="multicast://default"/>
>>>     </transportConnectors>
>>>
>>>
>>>     <!-- Or if you want to use pure JDBC without a journal -->
>>>     <persistenceAdapter>
>>>         <jdbcPersistenceAdapter dataSource="#mysql-ds"/>
>>>     </persistenceAdapter>
>>>
>>>     <!--  Use the following to set the broker memory limit
>>>         <systemUsage>
>>>                     <systemUsage>
>>>                             <memoryUsage>
>>>                                 <memoryUsage limit="10 mb"
>>> percentUsageMinDelta="20"/>
>>>                             </memoryUsage>
>>>                             <tempUsage>
>>>                                 <tempUsage limit="100 mb"/>
>>>                             </tempUsage>
>>>                             <storeUsage>
>>>                                 <storeUsage limit="1 gb" name="foo"/>
>>>                             </storeUsage>
>>>                     </systemUsage>
>>>             </systemUsage>
>>>    -->
>>>
>>>     <!-- Use the following to configure how ActiveMQ is exposed in JMX
>>>     <managementContext>
>>>        <managementContext connectorPort="1099"
>>> jmxDomainName="org.apache.activemq"/>
>>>     </managementContext>
>>>     -->
>>>
>>>   </broker>
>>>
>>>   <!-- lets create a command agent to respond to message based admin
>>> commands on the ActiveMQ.Agent topic -->
>>>   <commandAgent xmlns="http://activemq.org/config/1.0"/>
>>>
>>>
>>>   <!-- An embedded servlet engine for serving up the Admin console -->
>>>   <jetty xmlns="http://mortbay.com/schemas/jetty/1.0">
>>>     <connectors>
>>>       <nioConnector port="8161" />
>>>     </connectors>
>>>
>>>     <handlers>
>>>       <webAppContext contextPath="/admin"
>>> resourceBase="${activemq.base}/webapps/admin" logUrlOnStart="true" />
>>>       <webAppContext contextPath="/demo"
>>> resourceBase="${activemq.base}/webapps/demo" logUrlOnStart="true" />
>>>     </handlers>
>>>   </jetty>
>>>
>>>
>>>
>>>   <!-- MySql DataSource Sample Setup -->
>>>   <bean id="mysql-ds" class="org.apache.commons.dbcp.BasicDataSource"
>>> destroy-method="close">
>>>     <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
>>>     <property name="url"
>>> value="jdbc:mysql://mqdb/activemq?relaxAutoCommit=true"/>
>>>     <property name="username" value="activemq"/>
>>>     <property name="password" value="activemq"/>
>>>     <property name="poolPreparedStatements" value="true"/>
>>>   </bean>
>>>
>>>
>>>
>>> LOGS
>>>
>>> Master:
>>> ======
>>>
>>> ACTIVEMQ_HOME: /usr/app/apache-activemq-5.0.0
>>> ACTIVEMQ_BASE: /usr/app/apache-activemq-5.0.0
>>> Loading message broker from: xbean:activemq.xml
>>> INFO  BrokerService                  - Using Persistence Adapter:
>>> JDBCPersistenceAdaptor(org.apache.commons.dbcp.BasicDataSource@4c221e9e)
>>> INFO  BrokerService                  - ActiveMQ 5.0.0 JMS Message Broker
>>> (mq01) is starting
>>> INFO  BrokerService                  - For help or more information
>>> please
>>> see: http://activemq.apache.org/
>>> INFO  ManagementContext              - JMX consoles can connect to
>>> service:jmx:rmi:///jndi/rmi://localhost:1099/jmxrmi
>>> INFO  JDBCPersistenceAdapter         - Database driver recognized:
>>> [mysql-ab_jdbc_driver]
>>> INFO  DefaultDatabaseLocker          - Attempting to acquire the
>>> exclusive
>>> lock to become the Master broker
>>> INFO  DefaultDatabaseLocker          - Becoming the master on
>>> dataSource:
>>> org.apache.commons.dbcp.BasicDataSource@4c221e9e
>>> INFO  TransportServerThreadSupport   - Listening for connections at:
>>> tcp://mq01:61616
>>> INFO  TransportConnector             - Connector openwire Started
>>> INFO  BrokerService                  - ActiveMQ JMS Message Broker
>>> (mq01,
>>> ID:sgjms01.sphsearch.com-39105-2019326477811-0:0) started
>>> WARN  BrokerRegistry                 - Broker localhost not started so
>>> using
>>> mq01 instead
>>> INFO  TransportConnector             - Connector vm://localhost Started
>>> INFO  log                            - Logging to
>>> org.slf4j.impl.JCLLoggerAdapter(org.mortbay.log) via
>>> org.mortbay.log.Slf4jLog
>>> INFO  log                            - jetty-6.1.4
>>> INFO  WebConsoleStarter              - ActiveMQ WebConsole initialized.
>>> INFO  /admin                         - Initializing Spring
>>> FrameworkServlet
>>> 'dispatcher'
>>> INFO  log                            - ActiveMQ Console at
>>> http://0.0.0.0:8161/admin
>>> INFO  log                            - ActiveMQ Web Demos at
>>> http://0.0.0.0:8161/demo
>>> INFO  log                            - Started
>>> SelectChannelConnector@0.0.0.0:8161
>>> ******
>>> INFO  TransportConnection            - Slave Broker mq02 is attached
>>>
>>>
>>>
>>> Slave
>>> =====
>>>
>>> ACTIVEMQ_HOME: /usr/app/apache-activemq-5.0.0
>>> ACTIVEMQ_BASE: /usr/app/apache-activemq-5.0.0
>>> Loading message broker from: xbean:activemq.xml
>>> INFO  BrokerService                  - Using Persistence Adapter:
>>> JDBCPersistenceAdaptor(org.apache.commons.dbcp.BasicDataSource@51f6f27b)
>>> INFO  BrokerService                  - ActiveMQ 5.0.0 JMS Message Broker
>>> (mq02) is starting
>>> INFO  BrokerService                  - For help or more information
>>> please
>>> see: http://activemq.apache.org/
>>> INFO  ManagementContext              - JMX consoles can connect to
>>> service:jmx:rmi:///jndi/rmi://localhost:1099/jmxrmi
>>> INFO  JDBCPersistenceAdapter         - Database driver recognized:
>>> [mysql-ab_jdbc_driver]
>>> ******
>>> INFO  DefaultDatabaseLocker          - Attempting to acquire the
>>> exclusive
>>> lock to become the Master broker
>>> INFO  DefaultDatabaseLocker          - Becoming the master on
>>> dataSource:
>>> org.apache.commons.dbcp.BasicDataSource@51f6f27b
>>> INFO  TransportServerThreadSupport   - Listening for connections at:
>>> tcp://mq02:61616
>>> INFO  TransportConnector             - Connector openwire Started
>>> INFO  TransportConnector             - Connector vm://mq02 Started
>>> INFO  MasterConnector                - Starting a network connection
>>> between
>>> vm://mq02#0 and tcp://null:0 has been established.
>>> INFO  BrokerService                  - ActiveMQ JMS Message Broker
>>> (mq02,
>>> ID:sgjms02.sphsearch.com-41158-1198828853013-1:0) started
>>> INFO  MasterConnector                - Slave connection between
>>> vm://mq02#0
>>> and tcp:///mq01:61616 has been established.
>>> WARN  BrokerRegistry                 - Broker localhost not started so
>>> using
>>> mq02 instead
>>> INFO  TransportConnector             - Connector vm://localhost Started
>>> INFO  log                            - Logging to
>>> org.slf4j.impl.JCLLoggerAdapter(org.mortbay.log) via
>>> org.mortbay.log.Slf4jLog
>>> INFO  log                            - jetty-6.1.4
>>> WARN  log                            - Can't reuse
>>> /tmp/Jetty_0_0_0_0_8161_admin__admin__9l5s6p, using
>>> /tmp/Jetty_0_0_0_0_8161_admin__admin__9l5s6p_59761
>>> INFO  WebConsoleStarter              - ActiveMQ WebConsole initialized.
>>> INFO  /admin                         - Initializing Spring
>>> FrameworkServlet
>>> 'dispatcher'
>>> INFO  log                            - ActiveMQ Console at
>>> http://0.0.0.0:8161/admin
>>> WARN  log                            - Can't reuse
>>> /tmp/Jetty_0_0_0_0_8161_demo__demo__uj3swb, using
>>> /tmp/Jetty_0_0_0_0_8161_demo__demo__uj3swb_59762
>>> INFO  log                            - ActiveMQ Web Demos at
>>> http://0.0.0.0:8161/demo
>>> INFO  log                            - Started
>>> SelectChannelConnector@0.0.0.0:8161
>>>
>>>
>>>
>>> --
>>> View this message in context:
>>> http://www.nabble.com/Slave-automatically-switch-to-Master-even-though-Master-is-up-tp14523353s2354p14523353.html
>>> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>>>
>>>
>> 
>> 
>> -- 
>> James
>> -------
>> http://macstrac.blogspot.com/
>> 
>> Open Source Integration
>> http://open.iona.com
>> 
>> 
> 
> 

-- 
View this message in context: http://www.nabble.com/Slave-automatically-switch-to-Master-even-though-Master-is-up-tp14523353s2354p14593829.html
Sent from the ActiveMQ - User mailing list archive at Nabble.com.


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