Non-durable Topic subscription with ClientID in a cluster environment

forgive me for asking this, i spent the entire day trying this out in my pc but still not able to get the exact result.
If i deploy an MDB on jms2 server with the following configuration in a cluster enviroment (jms1[masterbroker] <--> jms2) under Sun Application Server 9,
<activation-config-property-name>imqEnableSharedClientID</activation-config-property-name>
<activation-config-property-value>true</activation-config-property-value>
<activation-config-property-name>clientId</activation-config-property-name>
<activation-config-property-value>445566</activation-config-property-value>what should i expect if i issue the following command to jms1 and jms2?
1. imqcmd list dur
1-1. will there be an INACTIVE durable connection for jms1?
1-2. will there be an INACTIVE durable connection for jms2?
2. imqcmd query dst -t t -n TestT <- i want to know the number of consumer(s).
thanks and hope you can enligthen me.

I found a Metalink entry how you can configure the Oracle Enterprise Manager in a FailSafe Environment but only for Grid Control:
Note:396659.1 How To Setup Grid Control Central Agent Manually in Oracle Failsafe Environment
Is there a script/guide to do it with the local "enterprise manager database control"?
Replying to mnazi: Ok it is an overview and they mean that it is better to implement the enterprise manager to a management server but I couldn't found any hot information in the documentation to that. Maybe you know further info's?

Similar Messages

Best practice for remote topic subscription with HA

I'd like to create an orchestrator EJB, in cluster A, that must persist some data to a database of record and then publish a business event to a topic. I have two durable subscribers, MDBs on clusters B & C, that need to receive the events and perform some persistence on their side.
          I'd like HA so that a failure in any managed server would not interrupt the system. I can live with at least once delivery, but at the same time I'd like to minimize the amount of redundant message processing.
          The documentation gets a little convoluted when dealing with clustering. What is the best practice for accomplishing this task? Has anyone successfully implemented a similar solution?
          I'm using Weblogic 8.1 SP5, but I wouldn't mind hearing solutions for later versions as well.

A managed server failure makes that server's JMS servers unavailable, which, in turn, makes the JMS server's messages unavailable until the either (A) the JMS server is migrated or (B) the managed server is restarted.
          For more discussion, see my post today on topic "distributed destinations failover - can't access messages from other node". Also, you might be interested in the circa 8.1 migration white-paper on dev2dev: http://dev2dev.bea.com/pub/a/2004/05/ClusteredJMS.html
          Tom

Same WCF service endpoint to multiple topic/subscriptions

I have a WCF endpoint that I would like to subscribe to multiple topic/subscriptions with the same interface.
Then once it gets to the .svc, route based on the brokered message properties.
(This is sort of how we have it set up in Neuron ESB with service connectors).
This is so we don’t need a .svc file for every subscription in our setup.
When I try to add 2 endpoints in the web config, it throws:
The value could not be added to the collection, as the collection already contains an item of the same type: 'Microsoft.ServiceBus.TransportClientEndpointBehavior'. This collection only supports one instance of each type.
Here is my config:
<service
name ="SBWcfService2.TopicService">
<endpoint
name =
"TopicService"
listenUri="sb://localservicebus:10354/ServiceBusDefaultNamespace/wcftopic1/Subscriptions/Wcf2Sub"
address ="sb://localservicebus:10354/ServiceBusDefaultNamespace/wcftopic1"
binding="netMessagingBinding"
bindingConfiguration="messagingBinding"
contract="SBMessage.IMessageTopicContract"
behaviorConfiguration="endpointBehavior"/>
<endpoint
name =
"TopicService2"
listenUri="sb://localservicebus:10354/ServiceBusDefaultNamespace/wcftopic2/Subscriptions/Wcf2Sub2"
address ="sb://localservicebus:10354/ServiceBusDefaultNamespace/wcftopic2"
binding="netMessagingBinding"
bindingConfiguration="messagingBinding"
contract="SBMessage.IMessageTopicContract"
behaviorConfiguration="endpointBehavior"/>
</service>
So I took out the behaviorConfiguration in 1 of the 2 endpoint configs, this allowed me to hit the endpoint like every other time.
When it doesn’t work it gave me a 404 server error saying resource cannot be found.
Event viewer shows:
There was no channel actively listening at 'http://{{ServerName}}/SBWcfService2/TopicService.svc'. This is often caused by an incorrect address URI
If I change localservicebus to my computer name, I can hit the endpoint without the resource failure, but I can’t receive messages.
Searching online I couldn’t find much, the below link it the closest I could find with a similar problem:
http://stackoverflow.com/questions/25668693/system-argumentexception-while-browsing-wcf-service-with-multiple-azure-service
Any help would be greatly appreciated
Thanks,
-Nick N

This is one way to do it according to Microsoft
http://azure.microsoft.com/en-us/documentation/articles/service-bus-dotnet-how-to-use-topics-subscriptions/
The key point is: You don't listen to specific subscription, you listen to the service bus.
Here is a brief description of key steps
connectionString to your servicebus
Endpoint=sb://yourServiceNamespace.servicebus.windows.net/;SharedAccessKeyName=RootManageSharedAccessKey;SharedSecretValue=yourKey
Suppose Topics in your servicebus is Topic1
Suppose Subscriptions to your Topic1 are Sub1, Sub2
To receive messages from Topic1 for Sub1, Sub2
SubscriptionClient Client =
    SubscriptionClient.CreateFromConnectionString
            (connectionString, "Topic1", "Sub1"); //or change to Sub2
Client.Receive();
// Continuously process messages received from Sub1 (or Sub2) subscription
while (true)
   BrokeredMessage message = Client.Receive();
   if (message != null)
The web.config that listens to the topic for subscriptions looks like this
    <services>
      <service name="aaaaa">
        <endpoint address="sb://xxxxx.servicebus.windows.net/yyyyy"
                  behaviorConfiguration="sharedSecretClientCredentials"
                  binding="netTcpRelayBinding"
                  contract="wwwww"/>
      </service>
    </services>
    <behaviors>
      <endpointBehaviors>
        <behavior name="sharedSecretClientCredentials">
          <transportClientEndpointBehavior>
            <tokenProvider>
              <sharedSecret issuerName="owner" issuerSecret="zzzz"/>
            </tokenProvider>
          </transportClientEndpointBehavior>
        </behavior>
      </endpointBehaviors>
    </behaviors>
Frank

JMS Messages keep on growing for a Topic with non-durable consumers

I have a JMS Server whose "Messages Current" keeps on growing after every message send to the topic. All the consumers are non-durable. The session is a non-transacted session with Auto Accknowledge parameter. My client does recieve the message, but it does not go down from the "Messages Current" in the WLS console. Also once the server is restarted, the messages go down to 0.
I am using 9.2 SP2 on a Solaris environment.
Any insight would be helpful

It's possible that one or more the subscribers is stalled for some reason and so is not actually receiving and processing messages. This would cause messages to accumulate. You can examine statistics for individual consumers on the console to see if this is an issue.
Also, there could be a durable subscription on the topic left over from some previous application you used with the topic. There are statistics for these as well.
Yet another possibility is that the clients are receiving the messages but are failing to acknowledge/commit them. You wrote that the sessions are "auto-acknowledge" but they could accidentally be "transacted". Check to make sure that the first parameter passed to "createSession" is true (it should be false), and that the second parameter is set to auto-acknowledge.
Finally, if you happen to be using a distributed topic, keep in mind that if one of the topic members is unavailable/crashed/down messages will accumulate on the other distributed topic members until the unavailable member is restarted (at which point they will be forwarded to the restarted member).
Tom

AQ JMS: non-durable subscriptions not cleaned up

Whenever I create a non-durable subscription I see a TSUB_... subscription in the AQ$ tables. This subscription does not disappear when the client terminates abnormally.
This can be very annoying because these queues fill up quickly and deleting a big subscription locks the queue for a substantial amount of time.
Is there something I missed - should the QMN take care of these orphaned subscriptions ?

We are having exactly the same problem...

Anyone using durable topics with high data volumes?

We're evaluating JMS implementations, and our requirements call for durable subscribers, where subscribers can go down for several hours, while the MQ server accumulates a large number of messages.
Is anyone using Sun MQ in a similar scenario? How is it holding up?
Sun folks, do you know of production installations that use durable topics with high data volumes?
thanks,
-am

We are using a cluster of Sun�s JMS MQ 3.6 with durable message queues and persistent topics. In a 4 hour window each night we run over 20,000 messages through a queue. The cluster sits on two Windows servers, the producer client is on a AIX box and the consumer is running on a iSeries. Within the 20,000 messages are over 400,000 transactions. Each message can have many transactions. Yes, the iSeries client has gone down twice and the producer continued with the message queue pilling up, as it should. We just use the topic to send and receive command and status inquiries to the clients. So every thing works fine. We have only had a couple issues with a client locking and that maybe fixed with sp3, we are in the process of installing that. The only other issue we have had is that once in a while the producer tries to send an object message with to many transactions and it throws and JMS exceptions. So we put a cap on the size of the messages, if its over a set number of transactions it send each transaction as separately, otherwise it sends all the transactions in one object type (linked list of transactions) message. Compare the cost of this JMS system with Tibco or Sonic and you�re looking at big savings.

Non-durable subscribers persists after the end of their JMS session

Hi all,
I'm using OAQ as my JMS Provider.
I have created code for publishing and recieving messages to/from topics. Messaging works fine, but I have one problem:
All my non-durable subscribers persists after the end of their JMS session. I always perform unsubscribe operation in code and then closing session and connection.
When I subscribe to topic, there's one more line in DB table ( etc. NAME: TSUB_1_24E6DB98A2EB7712E040A8C, TYPE: 65). I have expected that subscribers will be deleted after performing unsubscribe operation, but they don't...
Can you help me with this problem? Thanks for any answer.
Best Regards,
Juraj

Have you found a solution to this yet - because I face the same problem

A question regarding Synchronous, Pub-Sub non-durable model

          Scenario:
          Non-durable, publish-subscribe, syncronous model.
          Publisher1 and Publisher2 both post messages to a Topic at the same time. How to
          design the non durable Subscribers that would be able to obtain both these messages
          in the same thread?
          e.g. if i in my program I create 2 subscribers, with selectors configured for the
          2 different messages...
          program start
          1. create sub1 using selector1 for topic1
          2. create sub2 using selector2 for topic1
          3. sub1.receive(timeout)
          4. sub2.receive(timeout)
          5. further processing using both the obtained messages
          6. program end.
          In the above case, if messages arrive at the same time in the topic, only sub1 will
          be able to get the message, as sub2 won't be active at that time.
          Is there anyway to acheive this considering Synchronous, Pub-Sub non-durable model
          is to be used?
          Many thanks...


          Thanks for the response.
          Is a subscriber active the moment it is created?
          e.g. objSub=tsession.createSubscriber(topic,strMessSelector,true);
          or it is said to be active when we call
          objSub.receive() (in case of synchronous subscriber)
          "Shean-Guang Chang" <[email protected]> wrote:
          >I don't know the details of the design. You can use a single subscriber
          >without a selector and then do two receive to get both message.
          >If you have to use selector so sub1 can only select message from pub1 and
          >sub2 can only select message from pub2 then you need sub3 without a
          >selector and sub3 will do blocking receive first and then once the sub3
          >receives a message you can use sub1 and sub2 to do receiveNoWait.
          >
          >e.g.
          >while (true) {
          > if (sub3.receive() ! = null) { // have message in the topic
          > if (sub1.receiveNoWait() != null) { // got message from pub1
          > do something
          > }
          > if (sub2.receiveNoWait() != null) {// got message from pub2
          > do something
          > }
          > }
          >}
          >
          >"vinay s" <[email protected]> wrote in message
          >news:[email protected]...
          >>
          >> Scenario:
          >> Non-durable, publish-subscribe, syncronous model.
          >> Publisher1 and Publisher2 both post messages to a Topic at the same time.
          >How to
          >> design the non durable Subscribers that would be able to obtain both these
          >messages
          >> in the same thread?
          >> e.g. if i in my program I create 2 subscribers, with selectors configured
          >for the
          >> 2 different messages...
          >>
          >> program start
          >> 1. create sub1 using selector1 for topic1
          >> 2. create sub2 using selector2 for topic1
          >> 3. sub1.receive(timeout)
          >> 4. sub2.receive(timeout)
          >> 5. further processing using both the obtained messages
          >> 6. program end.
          >>
          >> In the above case, if messages arrive at the same time in the topic, only
          >sub1 will
          >> be able to get the message, as sub2 won't be active at that time.
          >>
          >> Is there anyway to acheive this considering Synchronous, Pub-Sub
          >non-durable model
          >> is to be used?
          >>
          >> Many thanks...
          >
          >

WCF service application hosted in IIS for reading Windows server service bus topic/subscription

We have a WCF service application(not web application) which is deployed in IIS 8 pointing to the windows server service bus topic/subscription. We have configured the WCF service with applicationInitialization feature of IIS 8 to warm up.
But the WCF service is not reading any message from the topic/subscription.
configured in web.config file as below
<system.webServer>
<applicationInitialization>
<add initializationPage="/MyService.svc" />
</applicationInitialization>
</system.webServer>
When we run the same from visual studio its reading messages from topic/subscription.
any configuration/settings which we are missing?

You probably didn't initialize correctly the auto-start. Btw. I would recommend you to use AppFabric for this feature. It is more transparent in development and production.
Please take a look on following posts:
http://social.technet.microsoft.com/wiki/contents/articles/1284.host-wcf-services-with-service-bus-endpoints-in-iis-and-windows-server-appfabric.aspx
http://developers.de/blogs/damir_dobric/archive/2009/10/11/iis-7-5-and-always-running-web-applications.aspx
http://developers.de/blogs/damir_dobric/archive/2010/06/11/appfabric-issue-with-aoutostart.aspx
Damir Dobric
developers.de
daenet.de
daenet.eu
daenet.com

Non-scrolling topic - CSS change doesn't take effect

I am trying to create a non-scrolling region in WebHelp, RH 9. I followed some instructions to change the style tag for the area that I don't want to have scroll to position="fixed." Unfortunately, this doesn't seem to change my output at all and the region scrolls just fine.
I don't want to go the frame route. Any ideas? Here is the CSS code for the style. It appears at the top of the page, and I want it to stay at the top for all topics.
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font-weight: bold;
font-size: 18.0pt;
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Hi all,
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Non Durable subscribers

Hi,
I am currently developing an application in java that will use Oracle 8i's (8.1.7 to be more specific) Advanced Queuing Java API. Is there any way to mimic a non-durable subscriber in Oracle 8i? Both 8i and 9i don't support non durable subscribers.
Thanks,
Jeff
null

I'm not sure what exactly you mean by non-durable subscribers. If you are mean the subscriptions should be dropped after the session is deleted - you can create unique subscriber names for every session and unsubscribe when a session is closed. You'll have to record these subscriber names somewhere persistently and in case of abnormal session termination, you'll have to drop them later

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Non-durable Topic subscription with ClientID in a cluster environment

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