Limiting the message queue size

I am currently trying to run the message broker so that each queue has a maximum size on the messages that are contained within it. However, when setting this value by the administration console, it is completely ignored and more messages are successfully added to the queue.
I have also tried limiting the number of message in a particular queue, my problem is that when this limit is reached more messages are added and stored in the brokers memory, but not persisted. An error is still thrown by the broker, although this is a generic error which means there is no way of knowing if the message is in the queue or not which leads to duplicate messages being sent to the queue.
Any help on configuring the size of a message queue via either method will be greatly appreciated.
Thanks,
James.

Hello,
Yes it is possible .
From the ICM script and before you send the call to the queue , make a IF statement :
SkillGroup.(Skill group Name).RouterCallsQNow<=15
ABout the threshold i am not sure but the above if the calls in queue reached 16 you can send it to a play prompt then drop it.
Amer

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Hello,
Yes it is possible .
From the ICM script and before you send the call to the queue , make a IF statement :
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Amer

Is there any way to config the maximum queue size?

Hi all:
I wander to know how can I configure my iMQ3.5 to limite the maximum message number in a queue instance?
And if the producer is too fast, how can I limite the input rate of producer?
Thanks for your help!
BR.

For destinations in IMQ 3.5, you can configure the parameters maxTotalMsgBytes and maxNumMsgs (from version 3.5, these parameters apply to queues AND topics).
The Enterprise edition gives you the following options to configure the behaviour when the producer is faster than the consumer: slowing producers (FLOW_CONTROL), throwing out oldest messages (REMOVE_OLDEST), throwing out lowest priority messages according to age of the messages (REMOVE_LOW_PRIORITY), and/or throwing out the newest message (REJECT_NEWEST).
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www.arjuna.com

How to check the messages stuck up in the queues.

hi experts,
i have implemented the message queues in the EOIO form. if any message is stuck up in the inbound or the outbound queue. where would i will be able to check it.
i have the answers of checking it up in SXMB_MONI and runtime workbench.
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regards,
Alpa.

Hi,
you could use transactions SMQ1 and SMQ2.
For more information:
XI Asynchronous Message Processing: Understanding XI Queues -Part I
http://help.sap.com/saphelp_nw04/helpdata/en/7b/94553b4d53273de10000000a114084/frameset.htm
Regards
Patrick
Edited by: Patrick Koehnen on Oct 22, 2008 2:51 PM

MDB read message queue too slow

For some reason only a small number of MDB in the pool are accessing the message queue. The queue is growing rather fast and I wish to know how I can increase the read rate of my MDB's. Should I create another bean type to read the same queue. This does not seem like the ideal solution.
          Thank you
          bea user


The JMS Performance Guide white-paper contains information
          on how to configure an MDB to run more instances concurrently.
          One thing to realize is that the number of instances is limited
          by the size of the thread pool that the MDB is running in.
          You can find a link to the white-paper here:
          http://dev2dev.bea.com/technologies/jms/index.jsp
          Tom
          bea user wrote:
          > For some reason only a small number of MDB in the pool are accessing the message queue. The queue is growing rather fast and I wish to know how I can increase the read rate of my MDB's. Should I create another bean type to read the same queue. This does not seem like the ideal solution.
          >
          > Thank you
          > bea user

How to transaction in the message driven bean?

          hello
          i write a message driven bean,that monitor the weblogic message queue,when a "Order"
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          i want to encapsulate the flow in a transaction,see my code snippet of the onMessage
          method:
          ObjectMessage objMsg = (ObjectMessage) msg;
          OrderVO orderVO = (OrderVO) objMsg.getObject();
          System.out.println(orderVO.booklist);
          OrderinfoHome orderinfoHome = (OrderinfoHome) ctx.lookup(
          "java:/comp/env/orderinfo");
          Orderinfo orderinfo = orderinfoHome.create(orderVO.orderID);
          orderinfo.setAddress(orderVO.address);
          orderinfo.setCustname(orderVO.custName);
          orderinfo.setEmail(orderVO.email);
          orderinfo.setBooklist(orderVO.booklist);
          orderinfo.setPrice(new BigDecimal(orderVO.price));
          and deploy descriptor snippet(ejb-jar.xml):
          <assembly-descriptor>
          <container-transaction>
          <method>
          <ejb-name>orderMDB</ejb-name>
          <method-name>*</method-name>
          </method>
          <trans-attribute>Required</trans-attribute>
          </container-transaction>
          </assembly-descriptor>
          i think during this transaction,there are two action:geting the object from the
          queue and saving it to entity bean.in order to test the transaction,i modify the
          jndi name of entity bean in the code to a WRONG one.redeploy my program,and send
          a message to the queue,the mdb is activated,then the exception is thrown because
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          think if the second action of the transaction is fail,the transaction should roll
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          i also ty to use the "javax.transaction.UserTransaction" in the onMessage method,but
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          who can help me,if any wrong with me,and how to use the transaction with the message
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          thank you.


The transaction should rollback if the MDB throws an
          exception. Try changing your MDB code to
          call "setRollbackOnly()" on the EJB
          context (instead of throwing an exception) to see
          if that works. If calling "setRollbackOnly()" fixes
          the problem - then please contact customer support
          and report a bug.
          zbcong wrote:
          > hello
          >
          > i write a message driven bean,that monitor the weblogic message queue,when a "Order"
          > object is witten to the queue,the mdb get it and write it to a entity bean "Orderinfo".all
          > of above logic is within the "onMessage" method of the mdb.
          > i want to encapsulate the flow in a transaction,see my code snippet of the onMessage
          > method:
          >
          >
          > ObjectMessage objMsg = (ObjectMessage) msg;
          > OrderVO orderVO = (OrderVO) objMsg.getObject();
          > System.out.println(orderVO.booklist);
          > OrderinfoHome orderinfoHome = (OrderinfoHome) ctx.lookup(
          > "java:/comp/env/orderinfo");
          > Orderinfo orderinfo = orderinfoHome.create(orderVO.orderID);
          > orderinfo.setAddress(orderVO.address);
          > orderinfo.setCustname(orderVO.custName);
          > orderinfo.setEmail(orderVO.email);
          > orderinfo.setBooklist(orderVO.booklist);
          > orderinfo.setPrice(new BigDecimal(orderVO.price));
          >
          >
          > and deploy descriptor snippet(ejb-jar.xml):
          >
          >
          > <assembly-descriptor>
          > ............
          > ...........
          >
          > <container-transaction>
          > <method>
          > <ejb-name>orderMDB</ejb-name>
          > <method-name>*</method-name>
          > </method>
          > <trans-attribute>Required</trans-attribute>
          > </container-transaction>
          > </assembly-descriptor>
          >
          >
          > i think during this transaction,there are two action:geting the object from the
          > queue and saving it to entity bean.in order to test the transaction,i modify the
          > jndi name of entity bean in the code to a WRONG one.redeploy my program,and send
          > a message to the queue,the mdb is activated,then the exception is thrown because
          > of the wrong jndi name.after that,i check the message queue,find that it is empty.why?i
          > think if the second action of the transaction is fail,the transaction should roll
          > back,the message should be send BACK to the queue.
          >
          > i also ty to use the "javax.transaction.UserTransaction" in the onMessage method,but
          > the follwing exception is thrown:
          >
          > javax.transaction.NotSupportedException: Another transaction is associated with
          > this thread.................................
          >
          > who can help me,if any wrong with me,and how to use the transaction with the message
          > driven bean?
          >
          > thank you.
          >
          >

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Tks.

* ffernandesv,
down the MTA, under the MTA directory, rename the MSLOCAL\MSHOLD\<postoffice>\ folder of the troubling PO. The folder will get recreated when you restart the MTA.
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HTH
Uwe

Message queue like in C++ threads

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I have a question. Does java support threads sending messages to each other like in C++ threads on Windows?
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Tri

That code does not check my "claim". You never directly modify the list in that code. This code does verify my "claim" ... lol
import java.util.*;
public class test {
public static void main(String[] args) {
List list = new LinkedList();
list.add(new Object());
Iterator itr = list.iterator();
list.add(new Object());
itr.next();
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http://g.cs.oswego.edu

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Hello,
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Hello,
I have undertaken a project of simulating the point to point and publish/subscribe protocols of message queueing. This whole project would be done just in Java. There won't be any system level programming. Which data structure in Java would be the most efficient one for the message queue?

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Error during execution:
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Abort(coredump)
Thanks
Message was edited by:
weinhard

After switching to HP's ANSI C compiler i get the exact same error message.
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Is it possible to index the content of the message queue. Do we use Correlation ID to reference to some messages?

Hi,
Is it possible to index the content of the message
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I am getting the following error message:
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Thank you,
Ivan

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Ed
<Ivan Novick> wrote in message news:[email protected]..
Hi,
I am getting the following error message:
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Is there anyway to pinpoint exactly which application and or which service
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T ID KEY MODE OWNER GROUP
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m 0 0x50000e9b rw-rr-- root root
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$
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