IBM i (OS400) skipping MQCONN?

[Roger Lacroix]

All,

I have someone telling me that their IBM i (OS400) application is not
connecting to the local queue manager on IBM i (skipping the MQCONN)
and is only doing an MQOPEN, MQGET and MQCLOSE.

I'm not very familiar with IBM i, is this possible?

Regards,
Roger Lacroix
Capitalware Inc.

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[Dominique Courtois]

Hi Roger,
Should not this be linked to the WMQ-CICS connection ?
I am not familiar with i Series but this rings a little bell in my brain.
Regards
Dominique

----- Mail original -----
De: "Roger Lacroix" <roger.lacroix-***@public.gmane.org>
À: MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org
Envoyé: Lundi 31 Mars 2014 19:43:02
Objet: IBM i (OS400) skipping MQCONN?

All,

I have someone telling me that their IBM i (OS400) application is not
connecting to the local queue manager on IBM i (skipping the MQCONN)
and is only doing an MQOPEN, MQGET and MQCLOSE.

I'm not very familiar with IBM i, is this possible?

Regards,
Roger Lacroix
Capitalware Inc.

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[Roger Lacroix]

Hi,

> Should not this be linked to the WMQ-CICS connection ?

For CICS on z/OS, true. But this is just a
regular IBM i application running on IBM i
interacting with a local queue manager (no CICS).

Regards,
Roger Lacroix
Capitalware Inc.

At 03:14 PM 3/31/2014, you wrote:
>Hi Roger,
>Should not this be linked to the WMQ-CICS connection ?
>I am not familiar with i Series but this rings a little bell in my brain.
>Regards
>Dominique
>
>----- Mail original -----
>De: "Roger Lacroix" <roger.lacroix-***@public.gmane.org>
>À: MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org
>Envoyé: Lundi 31 Mars 2014 19:43:02
>Objet: IBM i (OS400) skipping MQCONN?
>
>All,
>
>I have someone telling me that their IBM i (OS400) application is not
>connecting to the local queue manager on IBM i (skipping the MQCONN)
>and is only doing an MQOPEN, MQGET and MQCLOSE.
>
>I'm not very familiar with IBM i, is this possible?
>
>Regards,
>Roger Lacroix
>Capitalware Inc.
>
>To unsubscribe, write to LISTSERV-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org and,
>in the message body (not the subject), write: SIGNOFF MQSERIES
>Instructions for managing your mailing list subscription are provided in
>the Listserv General Users Guide available at http://www.lsoft.com
>Archive: http://listserv.meduniwien.ac.at/archives/mqser-l.html
>
>To unsubscribe, write to LISTSERV-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org and,
>in the message body (not the subject), write: SIGNOFF MQSERIES
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>Archive: http://listserv.meduniwien.ac.at/archives/mqser-l.html

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[Paul Clarke]

Hi Roger,

If you look at the WebSphere MQ API Documentation you'll see the following statement in the MQCONN description.

On IBM® i, applications running in compatibility mode do not have to issue this call. These applications are connected automatically to the queue manager when they issue the first MQOPEN call. However, the MQCONN and MQDISC calls are still accepted from IBM i applications.

So, yes it is possible I believe,

Cheers,
Paul.

Paul Clarke
www.mqgem.com
-----Original Message-----
From: Dominique Courtois
Sent: Monday, March 31, 2014 8:14 PM
To: MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org
Subject: Re: IBM i (OS400) skipping MQCONN?

Hi Roger,
Should not this be linked to the WMQ-CICS connection ?
I am not familiar with i Series but this rings a little bell in my brain.
Regards
Dominique

----- Mail original -----
De: "Roger Lacroix" <roger.lacroix-***@public.gmane.org>
À: MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org
Envoyé: Lundi 31 Mars 2014 19:43:02
Objet: IBM i (OS400) skipping MQCONN?

All,

I have someone telling me that their IBM i (OS400) application is not
connecting to the local queue manager on IBM i (skipping the MQCONN)
and is only doing an MQOPEN, MQGET and MQCLOSE.

I'm not very familiar with IBM i, is this possible?

Regards,
Roger Lacroix
Capitalware Inc.

To unsubscribe, write to LISTSERV-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org and,
in the message body (not the subject), write: SIGNOFF MQSERIES
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Archive: http://listserv.meduniwien.ac.at/archives/mqser-l.html

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[Roger Lacroix]

Hi Paul,

Interesting. Thanks for the pointer.

Regards,
Roger Lacroix
Capitalware Inc.

At 04:18 PM 3/31/2014, you wrote:
>Hi Roger,
>
>If you look at the WebSphere MQ API
>Documentation you'll see the following statement in the MQCONN description.
>
>On IBM® i, applications running in
>compatibility mode do not have to issue this
>call. These applications are connected
>automatically to the queue manager when they
>issue the first MQOPEN call. However, the MQCONN
>and MQDISC calls are still accepted from IBM i applications.
>
>So, yes it is possible I believe,
>
>Cheers,
>Paul.
>
>Paul Clarke
>www.mqgem.com
>-----Original Message-----
>From: Dominique Courtois
>Sent: Monday, March 31, 2014 8:14 PM
>To: MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org
>Subject: Re: IBM i (OS400) skipping MQCONN?
>
>Hi Roger,
>Should not this be linked to the WMQ-CICS connection ?
>I am not familiar with i Series but this rings a little bell in my brain.
>Regards
>Dominique
>
>----- Mail original -----
>De: "Roger Lacroix" <roger.lacroix-***@public.gmane.org>
>À: MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org
>Envoyé: Lundi 31 Mars 2014 19:43:02
>Objet: IBM i (OS400) skipping MQCONN?
>
>All,
>
>I have someone telling me that their IBM i (OS400) application is not
>connecting to the local queue manager on IBM i (skipping the MQCONN)
>and is only doing an MQOPEN, MQGET and MQCLOSE.
>
>I'm not very familiar with IBM i, is this possible?
>
>Regards,
>Roger Lacroix
>Capitalware Inc.
>
>To unsubscribe, write to LISTSERV-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org and,
>in the message body (not the subject), write: SIGNOFF MQSERIES
>Instructions for managing your mailing list subscription are provided in
>the Listserv General Users Guide available at http://www.lsoft.com
>Archive: http://listserv.meduniwien.ac.at/archives/mqser-l.html
>
>To unsubscribe, write to LISTSERV-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org and,
>in the message body (not the subject), write: SIGNOFF MQSERIES
>Instructions for managing your mailing list subscription are provided in
>the Listserv General Users Guide available at http://www.lsoft.com
>Archive: http://listserv.meduniwien.ac.at/archives/mqser-l.html
>
>
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[Bruce Lerner]

MQCONN call is not necessary in the CICS (z/OS) and the AS/400 (iSeries)
environments, it can be included for portability.

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[Jantje .]

On Mon, 31 Mar 2014 13:43:02 -0400, Roger Lacroix
<roger.lacroix-***@public.gmane.org> wrote:

>I have someone telling me that their IBM i (OS400) application is not
>connecting to the local queue manager on IBM i (skipping the MQCONN)
>and is only doing an MQOPEN, MQGET and MQCLOSE.
>
>I'm not very familiar with IBM i, is this possible?

Yes, this is possible. Others have pointed to the doc.

However, personnaly, I do prefer an explicit connect in iSeries applications,
because you can have more than one queue manager on the same machine
and, although you can of course define one as default queue manager, I think
it is better not to have to rely on implicit defaults.

In a CICS, the connection is clearly identified in the configuration of the CICS
itself, so I feel that is not a problem.

Cheers,

Jantje.

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