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From pp <preeti.pada...@gmail.com>
Subject help required regarding mirror queue
Date Tue, 14 Sep 2010 17:21:48 GMT

hiii 

In our project we are using activemq with mysql as external database. we
enabled mirror queue in the activemq.xml file.but still it does not save the
messages or topics in the broker. there are only 3 tables namely 
 activemq_acks, 
activemq_msgs, 
activemq_lock. 

is it not working or wherev the messages ,topics are saved. my xml file is 

<!-- 
    Licensed to the Apache Software Foundation (ASF) under one or more 
    contributor license agreements.  See the NOTICE file distributed with 
    this work for additional information regarding copyright ownership. 
    The ASF licenses this file to You under the Apache License, Version 2.0 
    (the "License"); you may not use this file except in compliance with 
    the License.  You may obtain a copy of the License at 
    
    http://www.apache.org/licenses/LICENSE-2.0
    
    Unless required by applicable law or agreed to in writing, software 
    distributed under the License is distributed on an "AS IS" BASIS, 
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
    See the License for the specific language governing permissions and 
    limitations under the License. 
--> 





<beans 
  xmlns="http://www.springframework.org/schema/beans"   
  xmlns:amq="http://activemq.apache.org/schema/core" 
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 

  xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
  http://activemq.apache.org/schema/core
http://activemq.apache.org/schema/core/activemq-core.xsd"> 

    <!-- Allows us to use system properties as variables in this
configuration file --> 
    <bean
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> 
        <property name="locations"> 
            <value>file:${activemq.base}/conf/credentials.properties</value> 
        </property>       
    </bean> 


<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://localhost/activemq?database=activemq
relaxAutoCommit=true"/> 
    <property name="username" value="root"/> 
    <property name="password" value="opelin"/> 
    <property name="poolPreparedStatements" value="true"/> 
  </bean> 



    <!-- 
        The <broker> element is used to configure the ActiveMQ broker. 
    --> 
    <broker xmlns="http://activemq.apache.org/schema/core"
brokerName="localhost" dataDirectory="${activemq.base}/activemq-data" 

destroyApplicationContextOnStop="true" persistent="true" 
enableStatistics="true" useMirroredQueues="true" > 

  
        <!-- 
                        For better performances use VM cursor and small
memory limit. 
                        For more information, see: 
            
            http://activemq.apache.org/message-cursors.html
            
            Also, if your producer is "hanging", it's probably due to
producer flow control. 
            For more information, see: 
            http://activemq.apache.org/producer-flow-control.html
        --> 

                 <destinationInterceptors> 
          <mirroredQueue copyMessage = "true" postfix=".frm" prefix=""/> 
                
                        <virtualDestinationInterceptor> 
        <virtualDestinations> 
        
         <virtualTopic name=">" prefix="VirtualTopicConsumers.*."
selectorAware="false"/> 
        </virtualDestinations> 
      </virtualDestinationInterceptor> 

                
         </destinationInterceptors> 



        
              



          
        <destinationPolicy> 
            <policyMap> 
              <policyEntries> 
                <policyEntry topic=">" producerFlowControl="true"
memoryLimit="1mb"> 
                  <pendingSubscriberPolicy> 
                    <vmCursor /> 
                  </pendingSubscriberPolicy> 
                </policyEntry> 
                <policyEntry queue=">" producerFlowControl="true"
memoryLimit="1mb"> 
                  <!-- Use VM cursor for better latency 
                       For more information, see: 
                        
                       http://activemq.apache.org/message-cursors.html
                      
                                





  
                  <pendingQueuePolicy> 
                    <vmQueueCursor/> 
                  </pendingQueuePolicy> 
                  --> 
                </policyEntry> 
              </policyEntries> 
            </policyMap> 
        </destinationPolicy> 
  
        
        <!-- 
            The managementContext is used to configure how ActiveMQ is
exposed in 
            JMX. By default, ActiveMQ uses the MBean server that is started
by 
            the JVM. For more information, see: 
            
            http://activemq.apache.org/jmx.html  
        --> 
        <managementContext> 
            <managementContext createConnector="false"/> 
        </managementContext> 

        <!-- 
            Configure message persistence for the broker. The default
persistence 
            mechanism is the KahaDB store (identified by the kahaDB tag). 
            For more information, see: 
            
            http://activemq.apache.org/persistence.html  
        --> 
                





        
 <persistenceAdapter> 

      <jdbcPersistenceAdapter 
            dataDirectory="${activemq.base}/activemq-data" 
            dataSource="#mysql-ds"/> 
    </persistenceAdapter> 

        
    


        
        
  
  
      

        

        
          <!-- 
            The systemUsage controls the maximum amount of space the broker
will 
            use before slowing down producers. For more information, see: 
            
            http://activemq.apache.org/producer-flow-control.html
              
        <systemUsage> 
            <systemUsage> 
                <memoryUsage> 
                    <memoryUsage limit="20 mb"/> 
                </memoryUsage> 
                <storeUsage> 
                    <storeUsage limit="1 gb"/> 
                </storeUsage> 
                <tempUsage> 
                    <tempUsage limit="100 mb"/> 
                </tempUsage> 
            </systemUsage> 
        </systemUsage> 
                --> 
                  
        <!-- 
            The transport connectors expose ActiveMQ over a given protocol
to 
            clients and other brokers. For more information, see: 
            
            http://activemq.apache.org/configuring-transports.html  
        --> 
        <transportConnectors> 
            <transportConnector name="openwire" uri="tcp://0.0.0.0:61616"/> 
        </transportConnectors> 

    </broker> 

    <!-- 
        Uncomment to enable Camel 
        Take a look at activemq-camel.xml for more details 
          
    <import resource="camel.xml"/> 
    --> 

    <!-- 
        Enable web consoles, REST and Ajax APIs and demos 
        Take a look at activemq-jetty.xml for more details 
    --> 
    <import resource="jetty.xml"/> 
    
</beans> 


THANKS IN ADVANCE 

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