RE: MQ Series -- MIDRANGE-L

Does anyone know of a good forum for questions and answers for MQ/MQSI
please

thanks

Steve Blair
AS/400 Systems Administrator
Vodafone Central Services Ltd
> -----Original Message-----
> From: Pantzopoulos, Mike [SMTP:mikepantzopoulos@mynd.com]
> Sent: Monday, July 31, 2000 12:35 AM
> To:   'MIDRANGE-L@midrange.com'
> Subject:      RE: MQ Series
> 
> I've taken this off-line as you were the only person who replied.
> Thanks for taking the time to think about my question and to reply. Yes it
> was stated in a complex manner. Your diagram  was more concise., and you
> understood what I was trying to do. It sounds like I really can't do what
> I want to do! Ihave parameterized almost everything so that the process
> machine doesn't need to keep track of where the original message came
> from. I did this according to the manual by letting MQ be aware of which
> MQ Manager sent the original message, and then using that parameter in the
> reply and setting the OUTQ in the process machine to have a blank MQ
> manager name so that it could be resolved dynamically at execution time.
> This solution was easy because it meant the configuration for each display
> machine was the same. In other words the display machines all have an OUTQ
> declared as remote (located on the display machine).
> If I use a different OUTQ on the process machine it would then mean that
> the process code would have to be aware of where the original request
> message came from. I was trying to avoid this situation as its not
> particularly elegant. 
> I haven't attended any IBM courses as yet and have been doing this via Red
> Books and the reference manuals so far. I'm about to attend an MQ
> Administration course shortly so hoprfully there might be some ideas
> coming from that.
>  
> Regards and thank you,
>  
> Mike Pantzopoulos
>  
>   
> 
>       -----Original Message-----
>       From: Alistair Rooney [mailto:alistairr@tbsa.co.za]
>       Sent: Friday, 28 July 2000 20:03
>       To: MIDRANGE-L@midrange.com
>       Subject: RE: MQ Series
>       
>       
>       Ok I hope I understand all this correctly. To make sure I'm going to
> explain it back to you in simpler terms.
>        
>        
>       Process
> Machine-------------------------------------------------------------------
> ---------------Display Machine
>       OUTQ
> (remote)------------------------------------------------------------------
> --------------->>>OUTQ(local)
>       
> INQ(local)<<<-------------------------------------------------------------
> ------------------------------INQ(Remote)
>        
>       Now what you want to do is put data on to the OUTQ from the Process
> machine but still direct it to the process machine. The answer is no. You
> can't do that. Parameterise your queue in your put program and when the
> data needs to be "sent" to the same machine then put it to a local queue
> (OUTQ.LOCAL) which can be triggered in exactly the same way as OUTQ on the
> display machine. The same process can be triggered from different queues
> and the actual queue name will be passed as a parameter (but you know
> that).
>        
>       I hope this answers your question.
>        
>       Alistair Rooney 
>       Project Leader (Interfaces) 
>       Tibbett & Britten South Africa 
>       +27 (0) 31 2047701 
>       +27 (0) 82 9023797 
> 
>               -----Original Message-----
>               From: owner-midrange-l@midrange.com
> [mailto:owner-midrange-l@midrange.com]On Behalf Of Pantzopoulos, Mike
>               Sent: 28 July 2000 08:17
>               To: 'MIDRANGE-L@midrange.com'
>               Subject: MQ Series
>               
>               
> 
>               A question for any MQ Series buffs out there in
> cyberland...... 
>               I have an MQ application I've built which is working fine
> for a multi-AS400 Q configuration. In essence, we have layered our
> application so that the presentation layer is on one AS400 and the
> processing logic is on another. The two layers communicate through MQ
> Series. 
> 
>               A functional transaction is initiated by a command on the
> presentation layer which generates a message to an triggered request Q.
> The trigger program then manages a 'dialogue' across the network using a Q
> in either direction.
> 
>               In essence we have an OUTQ which is used to pass screen
> buffer information to the presentation layer and an INQ (these are the
> actual names of the queues in use) which is used to pass screen input to
> the process layer. I have achieved this by defining OUTQ as a local Q on
> the display machine, and as a remote Q on the process machine, because
> that is the directional flow of information. The INQ is, conversely, a
> remote  Q on the presentation machine and a local Q on the process
> machine, because screen input needs to be passed to the process layer of
> code. 
> 
>               The OUTQ is not defined with a remote MQ manager name as I
> need to b able to set this dynamically depending on which machine the
> original request message came from. ( ultimately, requests may come form
> many disparate machines and platforms)This also works ok, when the request
> message is coming from a remote AS400.
> 
>               This works fine across two or more machine(One process
> machine and a number of presentation machines - we will soon  replace the
> AS400 as a presentation layer with an NT to interface to the web (sorry!),
> thus preserving our 15 years of debugged processing code). The use of
> dynamic allocation of remote MQ manager name solves the dialogue
> separation issues.  
> 
>               For various reasons, we also want to be able to run the
> interface on the same machine as the process. In other words I want to be
> able to pass the screen data from the process code into OUTQ, on the
> process machine, but without the message being dispatched to a remote MQ
> manager. This seems ambiguous because the OUTQ is defined as a remote Q
> and the message goes to the OUTQ located on the MQ Manager defined by the
> original request message. But of course, there is no remote MQ manager
> name in this circumstance!, And in fact even when I use debug and put in
> the local Q manager name in the MQ Open API it fails with the 2087 code.
> 
>               I've actually tried this on the same machine and I've
> managed to get the request message generated so that the trigger is
> activated, however the open of the OUTQ always ends up failing with a
> reason code 2087 - Unknown Remote MQ manager, because the dynamic
> identification of the MQ manager issuing the original request is blank
> when I try this from the process machine.
> 
>               I've tried defining a new  OUTQ as local to the process
> layer but MQM won't allow me to create a duplicate of OUTQ even thought
> the new definition has an attribute of *LCL.
> 
>               I've read the application programming interface manual
> several times and I can't see  a clear solution. I think it may have
> something to do with the way the parameters are used, but again it's not
> obvious
> 
>               The easy question to ask is ...............can I write to
> OUTQ and expect that the local MQM manager name (from the process machine)
> be placed in the MDRM parameter of the MQMD data structure?
> 
>               Sorry for the complexity! 
> 
> 
>                   
> 

Vodafone Central Services Ltd
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Berkshire,
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