Limit Amount of messages stored for durable subscribers

Hello,
Is there any way to limit the number of messages stored for durable subscribers in OpenMQ. ActiveMQ has a property you can set: constantPendingMessageLimitStrategy = 10. Does OpenMQ have a similar property?
Thanks,
Ed

You can set limit on the destination that the durable subscriber subscribed to (see imqcmd create dst -o option)

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              > Tom,
              >
              > Thanks for the swift confirmation. Would it not be a handy enhancement
              > to the WebLogic JMS provider?
              >
              > About TUXEDO: tpsubscribe() lets you subscribe a queue in a queue space
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              > Cheers,
              >
              > Mark
              >
              >
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              >
              >> Mark van Holsteijn wrote:
              >>
              >>> We want to use the publish/subscribe mechanism for application
              >>> integration purposes. We have one application publishing a message on
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              >>> that topic.
              >>>
              >>> We want to control the redelivery process for an individual
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              >>>
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              >>> destination and redelivery process for individual durable
              >>> subscriptions?
              >>
              >>
              >>
              >> No.
              >>
              > Thanks for the confirmation.
              >
              >>>
              >>>
              >>> Cheers,
              >>>
              >>> Mark van Holsteijn
              >>>
              >>> PS: My reference material is MQ en TUXEDO/Q. In both MQ and TUXEDO/Q
              >>> you subscribe a specific Queue to a topic giving you both an error
              >>> destination and redelivery control.
              >>>
              >>
              >> I think I know what you are referring to in MQ,
              >> but Tux/Q has no pub/sub capability.
              >>
              >
              > Chec
              >
              >> Tom, BEA
              >>
              >
              

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    http://logicblaze.com/

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              Tom Barnes <[email protected]> wrote:
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              >
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              >>
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              >>
              >> Abhay
              >>
              >> "Shean-Guang Chang" <[email protected]> wrote:
              >> >The support team has all the available release and patch that is why
              >> >I will
              >> >pass this to them to confirm the problem.
              >> >
              >> >"Abhay" <[email protected]> wrote in message
              >> >news:[email protected]...
              >> >>
              >> >> Shean,
              >> >>
              >> >> Did this problem existed in previous releases? With current release
              >> >can
              >> >you kill
              >> >> the subscriber, without unsubscribing and when restarted it shows
              >only
              >> >one
              >> >consumers
              >> >> or two?
              >> >>
              >> >> Do you know of any way to check whether these pending messages are
              >> >in
              >> >uncommited
              >> >> ot unacknowledged mode?
              >> >>
              >> >> Abhay
              >> >>
              >> >> "Shean-Guang Chang" <[email protected]> wrote:
              >> >> >The problem is not in the current environment. I will pass this
              >issue
              >> >> >to our
              >> >> >support team so they can verify this problem further on the 6.1
              >line.
              >> >> >In the
              >> >> >meantime you can call BEA support to get a customer case number
              >so
              >> >that
              >> >> >if
              >> >> >the problem requires any patch the customer support will have all
              >> >the
              >> >> >info
              >> >> >they need.
              >> >> >
              >> >> >Thanks!
              >> >> >
              >> >> >"Abhay" <[email protected]> wrote in message
              >> >> >news:[email protected]...
              >> >> >>
              >> >> >> Shean,
              >> >> >>
              >> >> >> Looks like we are online. I have restarted the subscriber process
              >> >and
              >> >> >do
              >> >> >not get
              >> >> >> messages again. My preliminary analysis it is statistical problem
              >> >only.
              >> >> >But We
              >> >> >> are building a huge EAI bus and want to get all things addressed
              >> >before
              >> >> >it
              >> >> >comes
              >> >> >> in manufacturing.
              >> >> >>
              >> >> >> We are using WLS6.1(no SP's). I am planning to upgrade to SP2
              >in
              >> >weeks
              >> >> >time. I
              >> >> >> looked at bugs fixed since 6.1 and there is no mention of such
              >problem.
              >> >> >So, not
              >> >> >> confidant that upgrading to SP2 will fix problem.
              >> >> >>
              >> >> >> Abhay
              >> >> >>
              >> >> >> "Shean-Guang Chang" <[email protected]> wrote:
              >> >> >> >What version of WLS you are using?
              >> >> >> >So far you indicate there are some statistics issue ONLY.
              >> >> >> >After those messages being consumed (committed) do you get them
              >> >again?
              >> >> >> >
              >> >> >> >I would start the subscriber process one more time and see if
              >those
              >> >> >> >committed messages will be available again or not. Thanks!
              >> >> >> >
              >> >> >> >"Abhay" <[email protected]> wrote in message
              >> >> >> >news:[email protected]...
              >> >> >> >>
              >> >> >> >> Thank you Shean,
              >> >> >> >>
              >> >> >> >> I am creating Durable subscriber with same client id and
              >> >subscription
              >> >> >> >name. When
              >> >> >> >> listerner falls over or killed on perpose. Durable subscription
              >> >> >entry
              >> >> >> >count for
              >> >> >> >> that clientid and subscriptionid (same) remains 1. Now we
              >start
              >> >> >the
              >> >> >> >subscriber
              >> >> >> >> process again and that increaments "consumer" count to 2.
              >> >> >> >>
              >> >> >> >> Is this way it should be? I am not sure. I was thinking that
              >> >it
              >> >> >will
              >> >> >> >be
              >> >> >> >intelligent
              >> >> >> >> enough to say I am from the same machine with same client
              >id,
              >> >> >subscription
              >> >> >> >id
              >> >> >> >> so I am the same guy.
              >> >> >> >>
              >> >> >> >> Anyway, reason I started looking at this because I am having
              >> >another
              >> >> >> >problem.
              >> >> >> >> once this restarted subscriber process consumes the message
              >and
              >> >> >commits
              >> >> >> >session
              >> >> >> >> transaction. (yes, I use createTopicSession(true, AUTO)).
              >the
              >> >message
              >> >> >> >goes
              >> >> >> >in
              >> >> >> >> pending stage. I am not sure why? So I started looking everywhere.
              >> >> >> >Do you
              >> >> >> >know
              >> >> >> >> how to find out what state these pending messages are in (uncommited
              >> >> >> >or
              >> >> >> >unacnkowledged)?
              >> >> >> >>
              >> >> >> >> Abhay
              >> >> >> >>
              >> >> >> >> "Shean-Guang Chang" <[email protected]> wrote:
              >> >> >> >> >What release of WAS?
              >> >> >> >> >
              >> >> >> >> >The durable subscriber will stay around even after the termination
              >> >> >> >of
              >> >> >> >> >the
              >> >> >> >> >Topic.
              >> >> >> >> >The durable subscriber is treated as a persistent subscriber
              >> >to
              >> >> >the
              >> >> >> >Topic
              >> >> >> >> >so
              >> >> >> >> >the durable subscriber will still receive all the qualified
              >> >topic
              >> >> >> >message
              >> >> >> >> >according to the JMS spec.
              >> >> >> >> >The only way through JMS API to remove the durable subscriber
              >> >is
              >> >> >using
              >> >> >> >> >unsubscribe() and there are conditions as to when this is
              >allowed
              >> >> >> >(a.go.
              >> >> >> >> >if
              >> >> >> >> >there is a Topic currently using this durable subscriber
              >then
              >> >> >unsubscribe
              >> >> >> >> >will fail, etc...)
              >> >> >> >> >
              >> >> >> >> >You said you did createDurableSubscriber under the same client
              >> >> >id.
              >> >> >> >Did
              >> >> >> >> >you
              >> >> >> >> >use the same subscription name? If the subscription name
              >is
              >> >different
              >> >> >> >> >then
              >> >> >> >> >you are creating a different durable subscriber.
              >> >> >> >> >
              >> >> >> >> >
              >> >> >> >> >
              >> >> >> >> >"Abhay" <[email protected]> wrote in message
              >> >> >> >> >news:[email protected]...
              >> >> >> >> >>
              >> >> >> >> >> We have a durable subscriber with client id "ABC". We forcibly
              >> >> >kill
              >> >> >> >> >it to
              >> >> >> >> >test
              >> >> >> >> >> recovery.
              >> >> >> >> >>
              >> >> >> >> >> Next time I start this subscriber again with same client
              >id.
              >> >> >Number
              >> >> >> >> >of
              >> >> >> >> >consumers
              >> >> >> >> >> on this topic goes up. Everything else works fine. Only
              >Messages
              >> >> >> >pending
              >> >> >> >> >keeps
              >> >> >> >> >> going up too?
              >> >> >> >> >>
              >> >> >> >> >> Not sure why consumers are increased?
              >> >> >> >> >>
              >> >> >> >> >> Thanks
              >> >> >> >> >>
              >> >> >> >> >
              >> >> >> >> >
              >> >> >> >>
              >> >> >> >
              >> >> >> >
              >> >> >>
              >> >> >
              >> >> >
              >> >>
              >> >
              >> >
              >
              

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              The second problem has to do with durability. I start Server 1 and it
              waits for a finish file and when it sees it it takes the files and
              puts them on the topic as described. As long as Server 2 is up and
              running at that time everything is fine. If However Server 2 is not
              running at that moment and is started at a later time then the
              messages seem to be lost. What could cause this? Is there any way I
              can visually see that the message is being held on Server 1? The
              bridge from this topic on Server 1 to the queue on Server 2 is
              configured on Sever 1 and you can see that it is working when Server 2
              is not running due to the connection refused messages the bridge
              throws. Is the bridge accepting the messages from the topic enough
              for the topic to decide it is done with them and delete them? Could
              the acknowledgement from the queue on another bridge for the same
              topic be confusing the topic and deleteing the message before all
              subscribers get it? This is a big issue since it seems that durabilty
              is only guarenteed when both servers are running and a message is
              created.
              Any help on this would be appreciated...If you wouldn't mind cutting
              and pasting any responses to my email as well it would be appreciated
              as I use google for groups and it has a long turn around.
              TIA...
              

    Hi Kartheek,
    Once we create a TOPIC in NWA.In durable subscribers tab subscription ID and Subscription name will be automatically created once you publish the message in to TOPIC.
    check in NWA-->jms server configuration-->durable subscribers.
    thanks
    Purna

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