MBD message ordering

Question

          Hi All,
          I have a problem with sequencing of messages redelivered to MDBs on WL8.1. I have
          looked through the solutions posted to the same problem on this newsgroup but
          they seem to have made no difference.
          1) My connection factory has MessagesMaximum=1
          2) There is only one instance of the MDB in the pool
          3) No redelivery delay has been configured.
          Does anyone have a solution ? I have attached some excerpts from my config files
          in case you want more details.
          Thanks,
          -Vikram
          [configs.txt]
          

Answer 1

Hi Vikram,
          I can see nothing else wrong with your configuration.
          Since you state the problem is not reproducable on
          a stand-alone client, I wonder if it has
          something to do with transactions. I suggest contacting
          customer support. In addition you might want
          to try a non-transactional MDB to speed up narrowing
          down the problem.
          Tom, BEA
          vikram wrote:
          > Hi Tom,
          >
          > Sorry for the misleading info earlier but I have actually removed that setting
          > (RedeliveryDelayOverride) and I still have the problem. One other thing that I
          > have noticed is that If I have a stand alone asynchronous MessageListener then
          > the redelivered messages are in order, the problem exists only in MDBs
          >
          > Regards
          >
          > Tom Barnes <[email protected]> wrote:
          >
          >>Hi Vikram,
          >>
          >>Assertion (3) is false, as there
          >>is a RedeliveryDelayOverride="20000" set
          >>in the configuration below.
          >>
          >>Tom
          >>
          >>vikram wrote:
          >>
          >>
          >>>Hi All,
          >>>
          >>>I have a problem with sequencing of messages redelivered to MDBs on
          >>
          >>WL8.1. I have
          >>
          >>>looked through the solutions posted to the same problem on this newsgroup
          >>
          >>but
          >>
          >>>they seem to have made no difference.
          >>>1) My connection factory has MessagesMaximum=1
          >>>2) There is only one instance of the MDB in the pool
          >>>3) No redelivery delay has been configured.
          >>>Does anyone have a solution ? I have attached some excerpts from my
          >>
          >>config files
          >>
          >>>in case you want more details.
          >>>
          >>>Thanks,
          >>>-Vikram
          >>>
          >>>
          >>>------------------------------------------------------------------------
          >>>
          >>>
          >>>-------------------------CONFIG.XML------------------------------------------------------------
          >>> <JMSConnectionFactory JNDIName="RDWJMSConnectionFactory"
          >>> Name="RDWJMSConnectionFactory" OverrunPolicy="KeepOld"
          >>> Targets="@RDW_SERVER_NAME@" TransactionTimeout="86400" XAConnectionFactoryEnabled="true"
          >>> MessagesMaximum="1"/>
          >>>
          >>> <JMSServer Name="RDWJMSServer" Store="RDWJDBCStore" Targets="@RDW_SERVER_NAME@">
          >>> <JMSQueue DeliveryModeOverride="Persistent"
          >>> JNDIName="HighPriorityQueue" MessagesMaximum="50"
          >>> Name="HighPriorityQueue" StoreEnabled="default" RedeliveryDelayOverride="20000"/>
          >>> </JMSServer>
          >>>------------------------------------------------------------------------------------------------
          >>>-------------------------EJB-JAR.XML------------------------------------------------------------
          >>><?xml version="1.0"?>
          >>><!DOCTYPE ejb-jar PUBLIC '-//Sun Microsystems, Inc.//DTD Enterprise
          >>
          >>JavaBeans 2.0//EN' 'http://java.sun.com/j2ee/dtds/ejb-jar_2_0.dtd'>
          >>
          >>><ejb-jar>
          >>> <enterprise-beans>
          >>> <message-driven>
          >>> <ejb-name>MessagePrioritiserMDBHigh</ejb-name>
          >>> <ejb-class>com.mizuho.rdw.interfaces.beans.MessagePrioritiserMDB</ejb-class>
          >>> <transaction-type>Container</transaction-type>
          >>> <message-driven-destination>
          >>> <destination-type>javax.jms.Queue</destination-type>
          >>> </message-driven-destination>
          >>> </message-driven>
          >>> </enterprise-beans>
          >>> <assembly-descriptor>
          >>> <container-transaction>
          >>> <method>
          >>> <ejb-name>MessagePrioritiserMDBHigh</ejb-name>
          >>> <method-name>*</method-name>
          >>> </method>
          >>> <trans-attribute>Required</trans-attribute>
          >>> </container-transaction>
          >>> </assembly-descriptor>
          >>></ejb-jar>
          >>>----------------------------------------------------------------------------------------------------------
          >>>--------------------------------WEBLOGIC-EJB-JAR.XML----------------------------------------------------
          >>><?xml version="1.0"?>
          >>><!DOCTYPE weblogic-ejb-jar PUBLIC '-//BEA Systems, Inc.//DTD WebLogic
          >>
          >>6.0.0 EJB//EN' 'http://www.bea.com/servers/wls600/dtd/weblogic-ejb-jar.dtd'>
          >>
          >>><weblogic-ejb-jar>
          >>> <weblogic-enterprise-bean>
          >>> <ejb-name>MessagePrioritiserMDBHigh</ejb-name>
          >>> <message-driven-descriptor>
          >>> <pool>
          >>> <max-beans-in-free-pool>1</max-beans-in-free-pool>
          >>> <initial-beans-in-free-pool>1</initial-beans-in-free-pool>
          >>> </pool>
          >>> <destination-jndi-name>HighPriorityQueue</destination-jndi-name>
          >>> <connection-factory-jndi-name>RDWJMSConnectionFactory</connection-factory-jndi-name>
          >>> </message-driven-descriptor>
          >>> <transaction-descriptor>
          >>> <trans-timeout-seconds>60</trans-timeout-seconds>
          >>> </transaction-descriptor>
          >>> <jndi-name>MessagePrioritiserMDBHigh</jndi-name>
          >>> </weblogic-enterprise-bean>
          >>></weblogic-ejb-jar>
          >>>---------------------------------------------------------------------------------------------------------------
          >>
          >