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Message
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| yuva670 |
 Posted: Tue Feb 27, 2007 3:17 am Post subject: A complete beginner to MQMD and RFH2 headers |
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Novice
Joined: 27 Feb 2007
Posts: 16
Location: Bangalore
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Hi,
I want to know everything that has to be known about the MQMD and RFH2 headers. What are those? Where and why and when are those used? Please help me out with this...Thanks in advance..
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| Vitor |
| Posted: Tue Feb 27, 2007 3:46 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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MQMD & MQRFH2 are the MQ headers used to hold the JMS header information - I'm assuming this is the focus of your interest given the section you've posted in.
You'll find complete details of their format & their use in the Application Programming Guide & Reference manuals. You'll find a detailed explaination of their relationship with JMS in the Using Java manual.
Happy Reading! 
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Insanity is the best defence. |
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| yuva670 |
| Posted: Tue Feb 27, 2007 4:16 am Post subject: |
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Novice
Joined: 27 Feb 2007
Posts: 16
Location: Bangalore
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Thanks vitor ...
i need some more details .... I need to pick a message from a MQ (which would be a XML message) and translate that to OSI(pretty much a string object)...but i need to fetch some details(Queue information) from the MQMD header and put them as RFH2 header attach with my actual message and send that to another system(again putting it onto another queue)......
couple of questions --.>
1. How do i access MQMD header which comes along with the actual message
2. Whats the structure of RFH2 header? (which would help me in putting the values accordingly)
may be an example ...which shows how to access details in MQMD and then putting them into RFH2 format would help me a lot
awaiting a reply asap ..... |
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| Vitor |
| Posted: Tue Feb 27, 2007 4:23 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| yuva670 wrote: |
| 1. How do i access MQMD header which comes along with the actual message |
If using non-Java, it's supplied as an object by the MQGET call. If using JMS the equivalent values are returned in the JMS header.
| yuva670 wrote: |
| 2. Whats the structure of RFH2 header? (which would help me in putting the values accordingly) |
It's the structure shown in the manuals I mentioned. Again if you're using JMS you should not need to interfer with this process. The mapping is handled for you as described in the other manual I mentioned.
| yuva670 wrote: |
| may be an example ...which shows how to access details in MQMD and then putting them into RFH2 format would help me a lot |
Like the sample code supplied by IBM with the queue manager, that sort of thing? 
There are plenty of snippets on the web if you need them. Try the developer works area of the IBM site. Again I repeat you don't want to be messing with this if you're using JMS.
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| yuva670 |
| Posted: Tue Feb 27, 2007 4:52 am Post subject: |
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Novice
Joined: 27 Feb 2007
Posts: 16
Location: Bangalore
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Thanks Vitor.
I will read the references that you had mentioned earlier and get information about these things. I got the AP guide and reference but couldn't find the Using Java manual.
Thanks once again. |
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| Vitor |
| Posted: Tue Feb 27, 2007 4:58 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| yuva670 wrote: |
| I got the AP guide and reference but couldn't find the Using Java manual. |
Available from whatever location you got the others from, either the library on the IBM site or indeed the online Info Centre.
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| yuva670 |
| Posted: Wed Feb 28, 2007 5:14 am Post subject: Trying to send and receive message to/from Websphere MQ |
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Novice
Joined: 27 Feb 2007
Posts: 16
Location: Bangalore
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Hi,
I am trying to send/receive messages from Websphere MQ from/to the Websphere Application Server 6.0. I have made the settings accordingly in the admin console of the server into the Websphere MQ JMS provider. When I invoke the receiver and set the connection name as provided in the admin console (MQ Connection factory), I get an exception:
Exception: javax.jms.JMSException: MQJMS2005: failed to create MQQueueManager for 'Ender'
where Ender is the queue manager created in the Websphere MQ.
Please help...  |
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| jefflowrey |
| Posted: Wed Feb 28, 2007 5:29 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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You need to retrieve the LinkedException from that JMSException.
This will give you the MQ Reason Code for the failure.
Then you can troubleshoot the failure using that.
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| yuva670 |
| Posted: Wed Feb 28, 2007 5:41 am Post subject: |
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Novice
Joined: 27 Feb 2007
Posts: 16
Location: Bangalore
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Thanks...
Should I use the getCause method to retrieve the LinkedException? |
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| jefflowrey |
| Posted: Wed Feb 28, 2007 5:52 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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I believe you need to use the getLinkedException() method to ... get.. the LinkedException...
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| yuva670 |
| Posted: Wed Feb 28, 2007 8:45 pm Post subject: |
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Novice
Joined: 27 Feb 2007
Posts: 16
Location: Bangalore
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I got the LinkedException:
com.ibm.mq.MQException: MQJE001: Completion Code 2, Reason 2059
at com.ibm.mq.MQManagedConnectionJ11.<init>(MQManagedConnectionJ11.java:219)
at com.ibm.mq.MQBindingsManagedConnectionFactoryJ11._createManagedConnection(MQBindingsManagedConnectionFactoryJ11.java:179)
at com.ibm.mq.MQBindingsManagedConnectionFactoryJ11.createManagedConnection(MQBindingsManagedConnectionFactoryJ11.java:215)
at com.ibm.mq.StoredManagedConnection.<init>(StoredManagedConnection.java:84)
at com.ibm.mq.MQSimpleConnectionManager.allocateConnection(MQSimpleConnectionManager.java:168)
at com.ibm.mq.MQQueueManagerFactory.obtainBaseMQQueueManager(MQQueueManagerFactory.java:772)
at com.ibm.mq.MQQueueManagerFactory.procure(MQQueueManagerFactory.java:697)
at com.ibm.mq.MQQueueManagerFactory.constructQueueManager(MQQueueManagerFactory.java:657)
at com.ibm.mq.MQQueueManagerFactory.createQueueManager(MQQueueManagerFactory.java:153)
at com.ibm.mq.MQQueueManager.<init>(MQQueueManager.java:526)
at com.ibm.mq.MQSPIQueueManager.<init>(MQSPIQueueManager.java:69)
at com.ibm.mq.jms.MQConnection.createQM(MQConnection.java:2007)
at com.ibm.mq.jms.MQConnection.createQMNonXA(MQConnection.java:1496)
at com.ibm.mq.jms.MQConnection.<init>(MQConnection.java:715)
at com.ibm.mq.jms.MQConnectionFactory.createConnection(MQConnectionFactory.java:4630)
at com.ibm.qbda.mq.p2p.QReceiver.setConnection(QReceiver.java:233)
at com.ibm.qbda.mq.p2p.QReceiverUI.connectionEntered(QReceiverUI.java:105)
at com.ibm.qbda.mq.p2p.QReceiverUI.connEtoC1(QReceiverUI.java:135)
at com.ibm.qbda.mq.p2p.QReceiverUI.access$1(QReceiverUI.java:130)
at com.ibm.qbda.mq.p2p.QReceiverUI$IvjEventHandler.propertyChange(QReceiverUI.java:50)
at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:265)
at java.awt.Component.firePropertyChange(Component.java:6791)
at com.ibm.qbda.mq.common.ConnectionPanel.setConnectionEntered(ConnectionPanel.java:653)
at com.ibm.qbda.mq.common.ConnectionPanel.setConnection(ConnectionPanel.java:635)
at com.ibm.qbda.mq.common.ConnectionPanel.connEtoC1(ConnectionPanel.java:105)
at com.ibm.qbda.mq.common.ConnectionPanel.access$1(ConnectionPanel.java:100)
at com.ibm.qbda.mq.common.ConnectionPanel$IvjEventHandler.actionPerformed(ConnectionPanel.java:56)
at java.awt.Button.processActionEvent(Button.java:411)
at java.awt.Button.processEvent(Button.java:379)
at java.awt.Component.dispatchEventImpl(Component.java:3712)
at java.awt.Component.dispatchEvent(Component.java:3574)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:536)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:237)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:187)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:181)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:173)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:136)
Linked com.ibm.mq.MQException: MQJE001: Completion Code 2, Reason 2059 |
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| vennela |
| Posted: Wed Feb 28, 2007 10:33 pm Post subject: |
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Jedi Knight
Joined: 11 Aug 2002
Posts: 4055
Location: Hyderabad, India
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2059:
Either the QMGR is not running, for BINDINGS mode or the listener is not running for CLIENT mode. |
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| yuva670 |
| Posted: Thu Mar 01, 2007 10:37 pm Post subject: |
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Novice
Joined: 27 Feb 2007
Posts: 16
Location: Bangalore
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Hi,
Both the Queue manager and Listener are running.
I am working with the Rational Application Developer and have Websphere MQ installed on the system. Now I am trying to set the Websphere MQ JMS provider in the admin console of the RAD. I have created a queue manager and a queue on that. And have set things accordingly in the admin console. In the admin console, I have provided the queue manager name and the base queue name.
I checked the queue manager and the listener in the Webspher MQ, they are running. |
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| Vitor |
| Posted: Fri Mar 02, 2007 1:13 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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You need to do a search in here. 2059 is a very common error that has a wide variety of possible causes too extensive to list here; some of which have nothing to do with either your code or your settings, but external influences. I would widen the description of 2059 given by vennela to "listener not running or inaccessable". If you look through the previous experiences of others you'll get a "laundry list" of things to check through in your own instalation.
My tip -if you're confident that your settings are correct, don't spend too much time bashing away at them, but turn your focus to other possible causes.
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Insanity is the best defence. |
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| yuva670 |
| Posted: Fri Mar 09, 2007 4:13 am Post subject: |
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Novice
Joined: 27 Feb 2007
Posts: 16
Location: Bangalore
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Hi,
Now, I came to know that we shouldn't mix the JMS and MQ configuration while dealing with the messaging with Websphere MQ.
Thanks for the help. I set up the things using JMS only and the application is working fine. I am able to communicate from the WAS to Websphere MQ using the 'Websphere MQ links' option in the WAS.
But I have a new problem now. Sometimes the receiver channel in the Websphere MQ (in WAS it's the sender) is inactive because of the sequence number mismatch. I tried resetting the sequence number in the Websphere MQ but no use. I am facing this problem frequently. Any suggestions please?
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