Pending messages

We are having a problem with some messages being stuck in the queue.
          They show as "pending" in the console and, in fact, get delivered to
          the listeners (MDBs) on server restart. The code of MDBs is beyond our
          control (the messages are actually sent to Weblogic Business Process
          Manager, part of WLI). The transaction attribute of the listeners is
          "Not Supported". Any ideas what's going on? It could be related to
          spikes in volume, but would not one expect the messages just sit in
          the queue and be picked up when the volume of incoming messages drops?
          Our biggest concern is finding a way to process these "lost" messages
          without having to restart the server. Any thoughts? Thanks!
          Igor

version? there were some stalled listener problems fixed in 6.1 SP3.
          _sjz.
          "Igor Sidorin" <[email protected]> wrote in message
          news:[email protected]..
          > We are having a problem with some messages being stuck in the queue.
          > They show as "pending" in the console and, in fact, get delivered to
          > the listeners (MDBs) on server restart. The code of MDBs is beyond our
          > control (the messages are actually sent to Weblogic Business Process
          > Manager, part of WLI). The transaction attribute of the listeners is
          > "Not Supported". Any ideas what's going on? It could be related to
          > spikes in volume, but would not one expect the messages just sit in
          > the queue and be picked up when the volume of incoming messages drops?
          > Our biggest concern is finding a way to process these "lost" messages
          > without having to restart the server. Any thoughts? Thanks!
          >
          > Igor

Similar Messages

How to find the number of pending messages in a Queue

All,
Is there a way to find the number of pending messages in a given QUEUE to be picked by the queue reader?
My reader is not picking all the messages as many sent by my writer, i am not sure where they are getting lost? or if the JMS implementation is buffering them and does not flush until it does not have enough to throw out ( which any way does not make sense!!).
Please help.
Chandra

You're right in thinking that the behaviour you describe looks wrong.
Take a look at the QueueBrowser interface which can be used to inspect a queue. You get one using QueueSession.createBrowser(Queue). The QueueBrowser allows you to scan a queue without consuming the messages. However note that the state of the queue may change while you're observing it through the QueueBrowser so what you see might not always be a 100% accurate representation of the queue at any given time.
Other things to check:
- message selectors - are you setting a message selector on your queue receiver which is resulting in not all of the messages 'matching'.
- expired messages - are you setting a time-to-live on the messages that you publish.
Hope this helps,
David Ingham
http://www.arjuna.com

Why are there pending messages that can't be consumed?

Hi all,
I am using Glassfish with a self made monitoring/stress-testing application.
In this app I can define consumers and producers, so I can somehow see the behavior of the system under many different conditions.
But something odd is happening: there are always 1000~2500 messages that I can see that they are there but I can't consume them. I have checked in my admin console and they are shown in the
"Number of Messages Pending Acknowledgment - Current number of messages being held in memory and persistent store pending acknowledgment".
Why they are pending acknowledgment? I sent them in the same way I did all others, and they all worked.
I found this link, they are all having similar problems, but they are using ActiveMQ. http://fusesource.com/forums/thread.jspa?threadID=1060
Could anyone help me to find out why this can be happening?
Edit: Could it be that the acknowledgement of a consumer is not getting back to the queue and the queue is reserving the message to that consumer, so nobody else can consume it?
Tks,
Oscar
Edited by: 808621 on 6/Jan/2011 2:02
Edited by: 808621 on 6/Jan/2011 2:47

Hi!
Thanks you both for the answer. I just figure it out with help of your replies: I was using many threads to consume the messages, but these threads were sharing the same "MessageConsumer" object, what was causing the pending messages. Once I changed to have one MessageConsumer per thread, it worked.
Thanks you both for the help :)
Oscar

Having problem with 7.1.2 upgrade, mail icon indicates 70 pending messages when there are none

Recently upgraded to iOS 7.1.2, the mail icon indicate there are 70 pending messages when in fact there are none

Recently upgraded to iOS 7.1.2, the mail icon indicate there are 70 pending messages when in fact there are none

Pending Messages Resulting in Application halt.

We developed a JPD which subscribes to a JMS Event. While another application sends messages to this application, we saw the messages getting stuck in queue and we also saw that count of pending messages going high and then at one point the application halted.
Has anyone face similar problem or know something about it. Please reply.

I found my problem and thought I would post it in case anyone else has the same problem.
I created synchronous stateless processes in the beginning. Later on I added clean up methods to the end of my processes, after the response node. I didn't think it would work after the response node but it did so I left. Unbeknownst to me, the processes had been changed to stateful processes by adding this cleanup node AFTER the response. This for some reason would leave messages in the pending state.
When I moved the cleanup method before the return, it went back to stateless and no pending messages.

JMS messages stuck as Pending messages

          Hi.
          I am trying to write an application to process huge amounts of data. I try to
          process around 1,000, 000 messages [java objects] using a single queue and 8 MDB.
          The strange thing is that in the end there are always 10 messages stuck in the
          pending message category.
          I can also observe that a weblogic thread is stuck. [can see it in the console]
          The stuck thread current description is something like "Connectio27.Session28".
          I have tried to use the QueueConnectionFactory from a EJB using resource reference
          instead of fetching it directly. Even this has not helped. I guess the problem
          is that while loading the messages onto the queues, one of the threads gets stuck
          somewhere.
          I am sing MDB's for processing. There doesnot seem to be any problems on the MDB
          side.
          If I reboot the server the 10 messages get processed successfully.
          Any ideas will be highly appreciated.
          -Sharma


if you waited for a minute or so between each threaddump, it definitly
          sounds like an issue around the database query not returning or there is too
          much data being returned.
          sree
          "Ghanshyam Sharma" <[email protected]> wrote in message
          news:40e2d9d6$1@mktnews1...
          >
          > Hmm, I didnt wait too much between thread dumps. Probably a minute or two.
          >
          > Let me check the oracle stuff.
          >
          > Thanks a Lot.
          >
          > -Sharma
          >
          > "sree bodapati" <iwillreply@thenewsgroups> wrote:
          > >Threaddumps dont seem to show much except for it looks like both execute
          > >thread 13 and 12 are stuck reading from oracle , you may want to see
          > >what
          > >query is being sent to oracle by instrumenting you MDB code see that
          > >query
          > >properly returns. The threads are runnable but they dont seem to move
          > >, what
          > >was the duration between each thread dump ?
          > >
          > >/
          > >sree
          > >
          > >
          > >"Ghanshyam Sharma" <[email protected]> wrote in message
          > >news:40e2ce39$1@mktnews1...
          > >>
          > >> Hi Tom.
          > >>
          > >> I am attaching a thread dump of the server on windows, when I have
          > >20
          > >messages
          > >> stuck as pending with MDB's having not-supported transaction attribute.
          > >>
          > >> I hope this helps in debugging the problem. Please let me know if
          > >something is
          > >> needed.
          > >>
          > >> Thanks everyone.
          > >> -Sharma
          > >>
          > >>
          > >> Tom Barnes
          >
          ><[email protected].bea.com>
          > >> wrote:
          > >> >As I wrote below, a thread-dump of the WL Server that hosts
          > >> >the stuck MDB might help explain things.
          > >> >
          > >> >Sharma wrote:
          > >> >
          > >> >> Hm, this is confirmed. I pumped in one million messages a few time
          > >> >with and without
          > >> >> file stores to differe the performance, but every time I get a clean
          > >> >slate :)
          > >> >>
          > >> >> Looks like having required transaction attribute somehow removes
          > >this
          > >> >problem.
          > >> >>
          > >> >>
          > >> >> But still I do not understand why messages were getting stuck with
          > >> >not-supported
          > >> >> attribute. Tom is it possible to understand this. The
          > >phenomenon/Reason
          > >> >behind
          > >> >> this may show up somewhere else :)
          > >> >>
          > >> >> -Sharma
          > >> >>
          > >> >> Tom Barnes
          >
          ><[email protected].bea.com>
          > >> >> wrote:
          > >> >>
          > >> >>>The default is no transactions. I also find it curious
          > >> >>>that this helps. I wonder if tx timeouts are helping here...
          > >> >>>
          > >> >>>Sharma wrote:
          > >> >>>
          > >> >>>
          > >> >>>>Surprisingly I could process all one million messages if I
          configure
          > >> >>>
          > >> >>>the MDB's
          > >> >>>
          > >> >>>>as folowing.
          > >> >>>>
          > >> >>>>Default-transaction=required
          > >> >>>>Transaction-typr=container
          > >> >>>>
          > >> >>>>When I was getting the problem, I had nothing for these settings.
          > >> >I
          > >> >>>
          > >> >>>do not know
          > >> >>>
          > >> >>>>what is the default, probably Not-supported ???
          > >> >>>>
          > >> >>>>Let me try my testing a few times and than confirm to you guys.
          > >> >>>>
          > >> >>>>Tom Barnes
          >
          ><[email protected].bea.com>
          > >> >>>>wrote:
          > >> >>>>
          > >> >>>>
          > >> >>>>>Since you narrowed the problem down to the MDB side, can
          > >> >>>>>post a thread dump of the server when it is stuck? That
          > >> >>>>>might help diagnose the problem.
          > >> >>>>>
          > >> >>>>>Ghanshyam Sharma wrote:
          > >> >>>>>
          > >> >>>>>
          > >> >>>>>
          > >> >>>>>>Infact The thread which is stuck is not the loader/message
          producer
          > >> >>>>>
          > >> >>>>>thread. It
          > >> >>>>>
          > >> >>>>>
          > >> >>>>>>is a thread handling message driven beans. My producers end up
          > >populating
          > >> >>>>>
          > >> >>>>>the
          > >> >>>>>
          > >> >>>>>
          > >> >>>>>>JMS correctly.
          > >> >>>>>>
          > >> >>>>>>This is 81sp02.
          > >> >>>>>>-Sharma
          > >> >>>>>>
          > >> >>>>>>"Ghanshyam Sharma" <[email protected]> wrote:
          > >> >>>>>>
          > >> >>>>>>
          > >> >>>>>>
          > >> >>>>>>>Hi.
          > >> >>>>>>>
          > >> >>>>>>>I am trying to write an application to process huge amounts
          > >of
          > >> >data.
          > >> >>>>>>>I try to
          > >> >>>>>>>process around 1,000, 000 messages [java objects] using a single
          > >> >>>
          > >> >>>queue
          > >> >>>
          > >> >>>>>>>and 8 MDB.
          > >> >>>>>>>The strange thing is that in the end there are always 10
          messages
          > >> >>>
          > >> >>>stuck
          > >> >>>
          > >> >>>>>>>in the
          > >> >>>>>>>pending message category.
          > >> >>>>>>>
          > >> >>>>>>>I can also observe that a weblogic thread is stuck. [can see
          > >it
          > >> >in
          > >> >>>>>
          > >> >>>>>the
          > >> >>>>>
          > >> >>>>>
          > >> >>>>>>>console]
          > >> >>>>>>>The stuck thread current description is something like
          > >"Connectio27.Session28".
          > >> >>>>>>>
          > >> >>>>>>>I have tried to use the QueueConnectionFactory from a EJB using
          > >> >resource
          > >> >>>>>>>reference
          > >> >>>>>>>instead of fetching it directly. Even this has not helped. I
          > >guess
          > >> >>>>>
          > >> >>>>>the
          > >> >>>>>
          > >> >>>>>
          > >> >>>>>>>problem
          > >> >>>>>>>is that while loading the messages onto the queues, one of the
          > >> >threads
          > >> >>>>>>>gets stuck
          > >> >>>>>>>somewhere.
          > >> >>>>>>>
          > >> >>>>>>>I am sing MDB's for processing. There doesnot seem to be any
          > >problems
          > >> >>>>>>>on the MDB
          > >> >>>>>>>side.
          > >> >>>>>>>
          > >> >>>>>>>If I reboot the server the 10 messages get processed
          successfully.
          > >> >>>>>>>
          > >> >>>>>>>Any ideas will be highly appreciated.
          > >> >>>>>>>-Sharma
          > >> >>>>>>
          > >> >>>>>>
          > >> >>
          > >> >
          > >>
          > >
          > >
          >

Pending Messages waiting for Client Acknowledgement

          Hi,
          I have tried to search the Internet for an answer to this question but failed.
          Any clue???
          I have setup a queue on BEA WLS 7.4. I have four consumers which connect concurrently
          to dequeue messages. Each of the consumers serve as a proxy to other clients
          waiting for the messages.
          The proxy application (consumer) is developed such that it will send the client_acknowledge
          to the Q manager after it finishes processing the received message and sends it
          successfully to the external client.
          I noticed that in some exceptional cases which I cannot reproduce, the proxy application
          would fail to send the message to client and therefore wouldn't send the client_acknowldege.
          Although I tried to catch all possible exceptions, i cannot catch this single
          exception that causes my proxy to continue processing the messages in a proper
          way. The problem is that I end up with some Pending Messages on the queue which
          cannot be available to other consumers and would stay that way till the consumer
          that was attempting to dequeue it is killed.
          Isn't there any way to configure an expiry period for this client_acknowledge
          wait state??? In other words, is it possible to configure a time after which
          the JMS provider would no longer be waiting for the client_acknowledge and sends
          the pending message back to the Q in a state that makes it available to other
          consumers.


Sorry. Once a message has been received in "CLIENT_ACKNOWLEDGE" mode, it
          remains pending and unavailable to other consumers until either the consumer
          is closed, acknowledge is called, or the client disconnects.
          Have you tried using a transacted session? In that case, the transaction
          will time out eventually, which will roll back the transaction and make the
          message visible again. You can control the length of this timeout using the
          "TransactionTimeout" parameter on the JMS connection factory.
          greg
          "Muhannad" <[email protected]> wrote in message
          news:[email protected]...
          >
          > Hi,
          > I have tried to search the Internet for an answer to this question but
          failed.
          > Any clue???
          >
          > I have setup a queue on BEA WLS 7.4. I have four consumers which connect
          concurrently
          > to dequeue messages. Each of the consumers serve as a proxy to other
          clients
          > waiting for the messages.
          >
          > The proxy application (consumer) is developed such that it will send the
          client_acknowledge
          > to the Q manager after it finishes processing the received message and
          sends it
          > successfully to the external client.
          >
          > I noticed that in some exceptional cases which I cannot reproduce, the
          proxy application
          > would fail to send the message to client and therefore wouldn't send the
          client_acknowldege.
          > Although I tried to catch all possible exceptions, i cannot catch this
          single
          > exception that causes my proxy to continue processing the messages in a
          proper
          > way. The problem is that I end up with some Pending Messages on the queue
          which
          > cannot be available to other consumers and would stay that way till the
          consumer
          > that was attempting to dequeue it is killed.
          >
          > Isn't there any way to configure an expiry period for this
          client_acknowledge
          > wait state??? In other words, is it possible to configure a time after
          which
          > the JMS provider would no longer be waiting for the client_acknowledge and
          sends
          > the pending message back to the Q in a state that makes it available to
          other
          > consumers.

Messages moving to Pending message state

          Hi
          Using: Weblogic 7.0 with SP2
          1. We have an Application server communicating with a JMS Hub that has a two server
          cluster. This server has an MDB configured dually - one MDB definition listening
          to each of the two physical queues of a virtual queue.
          2. A client writes a message to the virtual queue (causing it to be picked up
          by one of the physical queues). The client exits. I verify that the message actually
          lands up in one of the physical queues using console.
          3. I start the App server, and immediately the message moves to 'Messages Pending'
          column.
          4. The onMessage() of my MDB does not get called at all - I have a log in the
          first line of onMessage() that I do not see.
          5. Any further attempt by the client to put messages into the queue causes it
          to move over to the pending message state as long as the app server is up.
          Any ideas? Thanks bunch in advance.
          Here are the relevant ejb-jar and weblogic-ejb-jar.xml snippets:
          ejb-jar.xml:
               <message-driven>
                    <ejb-name>AcqPoolClosingResponseMDB</ejb-name>
                    <ejb-class>com.fanniemae.core.sec.packetization.acq.ejb.AcqPoolClosingResponseMDB</ejb-class>
                    <transaction-type>Container</transaction-type>
                    <acknowledge-mode>Auto-acknowledge</acknowledge-mode>
                    <message-driven-destination>
                         <destination-type>javax.jms.Queue</destination-type>
                    </message-driven-destination>
               </message-driven>
               <container-transaction>
               <method>
               <ejb-name>AcqValidationResponseMDB.OOPSResponseQueue</ejb-name>
               <method-name>*</method-name>
               </method>
               <trans-attribute>NotSupported</trans-attribute>
               </container-transaction>
          weblogic-ejbjar.xml:
               <weblogic-enterprise-bean>
                    <ejb-name>AcqPoolClosingResponseMDB.LoanSetupQueue</ejb-name>
                    <message-driven-descriptor>
                         <pool>
                         <max-beans-in-free-pool>10</max-beans-in-free-pool>
                         <initial-beans-in-free-pool>1</initial-beans-in-free-pool>
                         </pool>
                    <destination-jndi-name>LoanSetupQueue@SecJmsHub-jms04-1</destination-jndi-name>
                    <initial-context-factory>weblogic.jndi.WLInitialContextFactory</initial-context-factory>
                    <provider-url>t3://dcore-ap04:7159</provider-url>
                    </message-driven-descriptor>
                    <jndi-name>ejb/AcqPoolClosingResponseMDB</jndi-name>
               </weblogic-enterprise-bean>


Hi Srikant,
          I'm somewhat familiar with "core". The "ejb-class" gives
          you away. :-) I'm not sure what the problem is, but here
          are some things you can try:
          Item number one. The conflicting
          descriptor combo of "container" managed transaction and
          "not-supported" may be the issue. For container
          managed transactions in an MDB, I think the assembly-descriptor
          for the onMessage method should be set to "Required" in
          addition to setting the transaction type to "Container":
          <container-transaction>
          <method>
          <ejb-name>......</ejb-name>
          <method-name>onMessage()</method-name>
          </method>
          <trans-attribute>Required</trans-attribute>
          </container-transaction>
          If you don't want container managed transactions, do not
          specify a "transaction-type" of "Container".
          Item number two. The ejb-name field in container-transaction
          does not match the the ejb-name field in message-driven.
          Furthermore, with container managed transactions
          the acknowledge-mode is ignored so it need not be set.
          Item number three. It is possible that your MDB app
          is throwing a runtime exception before it hits your
          onMessage trace statement. This would cause the MDB container
          to roll-back the tx. The message will then remain
          in a pending state if it is immediately redelivered
          or if there is a redelivery delay configured.
          Hope this helps,
          Tom, BEA
          Srikanth Meenakshi wrote:
          > Hi
          >
          > Using: Weblogic 7.0 with SP2
          >
          > 1. We have an Application server communicating with a JMS Hub that has a two server
          > cluster. This server has an MDB configured dually - one MDB definition listening
          > to each of the two physical queues of a virtual queue.
          >
          > 2. A client writes a message to the virtual queue (causing it to be picked up
          > by one of the physical queues). The client exits. I verify that the message actually
          > lands up in one of the physical queues using console.
          >
          > 3. I start the App server, and immediately the message moves to 'Messages Pending'
          > column.
          >
          > 4. The onMessage() of my MDB does not get called at all - I have a log in the
          > first line of onMessage() that I do not see.
          >
          > 5. Any further attempt by the client to put messages into the queue causes it
          > to move over to the pending message state as long as the app server is up.
          >
          > Any ideas? Thanks bunch in advance.
          >
          > Here are the relevant ejb-jar and weblogic-ejb-jar.xml snippets:
          >
          > ejb-jar.xml:
          >      <message-driven>
          >           <ejb-name>AcqPoolClosingResponseMDB</ejb-name>
          >           <ejb-class>com.fanniemae.core.sec.packetization.acq.ejb.AcqPoolClosingResponseMDB</ejb-class>
          >           <transaction-type>Container</transaction-type>
          >           <acknowledge-mode>Auto-acknowledge</acknowledge-mode>
          >           <message-driven-destination>
          >                <destination-type>javax.jms.Queue</destination-type>
          >           </message-driven-destination>
          >      </message-driven>
          >
          >
          >      <container-transaction>
          >      <method>
          >      <ejb-name>AcqValidationResponseMDB.OOPSResponseQueue</ejb-name>
          >      <method-name>*</method-name>
          >      </method>
          >      <trans-attribute>NotSupported</trans-attribute>
          >      </container-transaction>
          >
          > weblogic-ejbjar.xml:
          >
          >      <weblogic-enterprise-bean>
          >           <ejb-name>AcqPoolClosingResponseMDB.LoanSetupQueue</ejb-name>
          >           <message-driven-descriptor>
          >                <pool>
          >                <max-beans-in-free-pool>10</max-beans-in-free-pool>
          >                <initial-beans-in-free-pool>1</initial-beans-in-free-pool>
          >                </pool>
          >           <destination-jndi-name>LoanSetupQueue@SecJmsHub-jms04-1</destination-jndi-name>
          >
          >           <initial-context-factory>weblogic.jndi.WLInitialContextFactory</initial-context-factory>
          >           <provider-url>t3://dcore-ap04:7159</provider-url>
          >           </message-driven-descriptor>
          >           <jndi-name>ejb/AcqPoolClosingResponseMDB</jndi-name>
          >      </weblogic-enterprise-bean>
          >
          >

Re: Find the Pending Messages in an Queue

How can i read the PENDING Message in an Queue..actually I used MDB ..from MDM i rolled back when an Exception occured.. in Weblogic Console it Shows "1" message is in pending..but i used QueueBrowser.getEmumeration()..it gives empty.. any other way to find PENDING Messages in an Queue

I use selector by example
selection ="JMSCorrelationID = 'ID:" + msg.getJMSMessageID().toLowerCase()+"'"
or another property.
eceiver = session.createReceiver(inqueue, selection);
Message msg = receiver.receive(timeout);

Problem with pending message

Hi,
Im working with SAP XI 3.0 SP9.
I have tried to execute a wrong Business Process. My message (receive) status is OK but the Business Process stopped in one Block.
So my Outbound Status is pending.
After that a made some changes in my Business Process but after the new tests my Scenario is still working with the First (wrong) BP and Im receiving more pending messages.
I cant Cancel or Refresh execution of that message because receive status is OK!!
Any idea how can I cancel that message execution?
Thanks in advance and best regards
Naycho

Hello,
I am using front end patch 9 and when I use to functionality 'Convert to Formula' this works fine.
In the analysis grid you would right-click in the body of the grid and select 'Convert to Formula'. Then when you refresh your workbook the format modifications should remain.
If you have not tried this already I think it should resolve your problem.
Fred

Pending Messages in Dispatcher Queues

We have a jpd that calls a couple of "helper" jpd's while handling a request.
I noticed for every request to the main jpd the total number of JMS messages in the dispatcher queue goes up by 6, but half (3) are in the pending state.
The pending messages just grow and grow as the application is used until the server runs out of memory. It appears these pending messages are kept in memory.
I have read about the conditions that cause messages to stay in pending, but I'm not sure which of these conditions applies in my case. Any ideas why I'm getting pending messages, or how I could find out?
Thanks.

I found my problem and thought I would post it in case anyone else has the same problem.
I created synchronous stateless processes in the beginning. Later on I added clean up methods to the end of my processes, after the response node. I didn't think it would work after the response node but it did so I left. Unbeknownst to me, the processes had been changed to stateful processes by adding this cleanup node AFTER the response. This for some reason would leave messages in the pending state.
When I moved the cleanup method before the return, it went back to stateless and no pending messages.

Pending message in Queue

          All,
          During a load test, there are lots of pending messages in a queue. How can I speed
          up the message processing? Configure a session pool or increase poll interval?
          Any suggestion is welcome. I am new to this. Thanks.
          Regards,
          Wen


Hi Rick
          I recommend starting with the JMS Performance Guide
          white-paper on dev2dev.bea.com. You can find it on
          the main JMS technology page:
          http://dev2dev.bea.com/technologies/jms/index.jsp
          Tom
          Rick Chang wrote:
          > All,
          >
          > During a load test, there are lots of pending messages in a queue. How can I speed
          > up the message processing? Configure a session pool or increase poll interval?
          >
          > Any suggestion is welcome. I am new to this. Thanks.
          >
          > Regards,
          > Wen

JMS with pending message

In the WLS7 domain, there are MDB, EJB and startup class.The startup class need
          30 seconds. MDB & EJB are all depend on
          the result from the startup class.
          When restart the domain with pending messages,
          1.whether by default MDB processes the
          pending message before startup class finishs running?
          2. is it possible to let MDB wait until startup class finishs?
          Regards,
          David


Setting "start-mdbs-with-application" to false in
          weblogic-application.xml would start mdb's after
          opening the listen port (at the very end of the
          server boot).
          David wrote:
          > In the WLS7 domain, there are MDB, EJB and startup class.The startup class need
          > 30 seconds. MDB & EJB are all depend on
          > the result from the startup class.
          > When restart the domain with pending messages,
          > 1.whether by default MDB processes the
          > pending message before startup class finishs running?
          > 2. is it possible to let MDB wait until startup class finishs?
          >
          > Regards,
          > David

QueueBrowser enumeration and Pending Messages

          I've flooded a Queue with messages. When I use a QueueBrowser to look at the contents
          of the queue, the number of items I get back from QueueBrowser.getEnumeration()
          is nowhere near the number of Pending Messages shown in the WebLogic admin console.
          For instance, the WL admin console shows 33 PendingMessages, but the number of
          messages in the QueueBrowser enumeration is 7. This is a non-distributed queue
          and I'm running WL non-clustered. I do have an MDB listening to the queue, but
          I only have 5 instances of the MDB available in the pool, which is not enough
          to immeditely process all of the messages I've sent to the queue.
          Is using a QueueBrowser the proper way to determine how many messages are pending
          in a queue, or is there another method of determining this (short of accessing
          the admin console MBeans)?
          Thanks


Hi Jeff,
          The QueueBrowser browses only those messages that are
          available for dequeue. Messages are not available if they are
          awaiting action by a particular consumer, producer, or
          delivery timer. In addition, JMS server's push
          messages up to 10 at a time to asynchronous
          consumers, so 5 MDBs may have a backlog
          of 50 messages that are unavailable to QueueBrowsers
          (or other consumers.) The maximum backlog is configurable
          via the connection factory "MessagesMaximum" setting.
          Tom
          Jeff wrote:
          > I've flooded a Queue with messages. When I use a QueueBrowser to look at the contents
          > of the queue, the number of items I get back from QueueBrowser.getEnumeration()
          > is nowhere near the number of Pending Messages shown in the WebLogic admin console.
          > For instance, the WL admin console shows 33 PendingMessages, but the number of
          > messages in the QueueBrowser enumeration is 7. This is a non-distributed queue
          > and I'm running WL non-clustered. I do have an MDB listening to the queue, but
          > I only have 5 instances of the MDB available in the pool, which is not enough
          > to immeditely process all of the messages I've sent to the queue.
          >
          > Is using a QueueBrowser the proper way to determine how many messages are pending
          > in a queue, or is there another method of determining this (short of accessing
          > the admin console MBeans)?
          >
          > Thanks
          >
          >

Re: Pending messages

Those messages are not "lost" since they got delivered later (server
          restart).
          Since MDB is using async consumer so that there could have messages in the
          delivery pipeline and
          those messages are considered "pending" too. You can reduce the pipeline
          down to 1 so if the MDB doesn't
          consumer message fast enough some other consumer still can get those
          messages.
          "Igor Sidorin" <[email protected]> wrote in message
          news:[email protected]..
          > We are having a problem with some messages being stuck in the queue.
          > They show as "pending" in the console and, in fact, get delivered to
          > the listeners (MDBs) on server restart. The code of MDBs is beyond our
          > control (the messages are actually sent to Weblogic Business Process
          > Manager, part of WLI). The transaction attribute of the listeners is
          > "Not Supported". Any ideas what's going on? It could be related to
          > spikes in volume, but would not one expect the messages just sit in
          > the queue and be picked up when the volume of incoming messages drops?
          > Our biggest concern is finding a way to process these "lost" messages
          > without having to restart the server. Any thoughts? Thanks!
          >
          > Igor


We are having the same problem, which messages stuck in the Pending mode even after restarting. Is there any way to retrieve those pending messages?
          Thanks,
          Jun Xiao
          Sogeti-USA

Redirector pending messages that won't send

Blackberry 9630
Desktop Manager 4.7
MS Outlook 2003
Win XP Pro
This new Blackberry install will not work with the Redirector. During the install, I selected to have the Blackberry sync emails using the redirector (corporate email). The email settings in the desktop manager are set to sync and direct to "Desktop" on the Blackberry. However, all the emails stay qued up in the Pending Messages and they never get received by the device...

What is the status in Desktop Redirector? Does the number of pending messages continue to increase? Check out this KB article on Desktop Redirector Status field errors. http://bbry.lv/afyhrd
-FS
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Pending messages

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