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From abosetti <abose...@burrows.co.uk>
Subject Re: Strange problem
Date Tue, 23 Mar 2010 20:08:59 GMT

Hi Rob, thanks for the suggestion. I have tried the KahaDB adaptor, and it
does endeed change the behaviour but I am still getting the same error
message every other time I restart. The major difference is that now,
despite the error message, everything seems to work :) 

I forgot to mention something important earlier on, that may be important:
I am using the ajax listener. The configuration that I have in web.html is

<context-param>
		<param-name>org.apache.activemq.brokerURL</param-name>
		<param-value>vm://BrokerA?create=false</param-value>
	</context-param>
	
	<context-param>
        <param-name>org.apache.activemq.embeddedBroker</param-name>
        <param-value>true</param-value>      
    </context-param>
	
	<servlet>
		<servlet-name>AjaxServlet</servlet-name>
		<servlet-class>org.apache.activemq.web.AjaxServlet</servlet-class>
		  <load-on-startup>1</load-on-startup>
	</servlet>
	
	<servlet-mapping>
		<servlet-name>AjaxServlet</servlet-name>
		<url-pattern>/amq/*</url-pattern>
	</servlet-mapping>

May be it has something to do with this? 
Alex



>Hi Alex,
>
>could you try with the KahaDB persistence adaptor ?

in reply to  
> Hi all
> 
> I am experiencing a strange problem. Every other time that I startup my
> tomcat server, I get the message 
> SEVERE: IOException while loading persisted sessions:
> java.io.WriteAbortedException: writing aborted;
> java.io.NotSerializableException:
> org.apache.activemq.ActiveMQMessageConsumer
> 
> In short, the first time I run my app, it works very well, all the topics
> and queues are working fine and message flow is at it should be. I shut
> down
> my application server (Tomcat or Weblogic) and when I restart it I get the
> above message and activemq doesn't seem to work propertly (no messages are
> sent or received).
> 
> I use spring 2.5.6, ActiveMQ v5.3.0. I have tried the just released 5.3.1
> but it doesn't change anything. 
> 
> I am sure that I have some configuration issues somewhere, but I cannot
> see.
> If you could point me in the right direction...
> 
> Thank you a million in advance.
> Alex
> 
> 
> My spring configuration is:
> 	 <amq:broker useJmx="false" start="true" enableStatistics="false"
> persistent="true"  dedicatedTaskRunner="true" supportFailOver="false"
> useShutdownHook="true" 
> 	 		brokerName="BrokerA" destroyApplicationContextOnStop="false"
> deleteAllMessagesOnStartup="true">
> 		
> 		 <amq:persistenceAdapter>
>      		<amq:amqPersistenceAdapter directory="/phx/broker/data"
> maxFileLength="32mb" syncOnWrite="true" />      		
>  		</amq:persistenceAdapter>
> 		
> 		<amq:transportConnectors>
> 			<amq:transportConnector uri="tcp://localhost:0" />
> 		</amq:transportConnectors>
> 		
> 	</amq:broker>
> 	
> 	 
> 	<amq:connectionFactory id="jmsFactory"
> brokerURL="vm://BrokerA?create=false" />
> 	
> 	<bean class="org.springframework.jms.connection.CachingConnectionFactory"
> id="connectionFactory">
>  		<constructor-arg ref="jmsFactory"/>
>  		<property name="sessionCacheSize" value="100"/>
> 	</bean>    
> 	
> <amq:topic id="topicTest" physicalName="topicTest" />
> 
> 
> 
> The full stack trace is:
> 23-Mar-2010 17:15:49 org.apache.catalina.session.StandardManager doLoad
> SEVERE: IOException while loading persisted sessions:
> java.io.WriteAbortedException: writing aborted;
> java.io.NotSerializableException:
> org.apache.activemq.ActiveMQMessageConsumer
> java.io.WriteAbortedException: writing aborted;
> java.io.NotSerializableException:
> org.apache.activemq.ActiveMQMessageConsumer
> 	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1333)
> 	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
> 	at java.util.HashMap.readObject(HashMap.java:1029)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> 	at

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