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| RAKI |
 Posted: Wed Dec 16, 2009 3:57 pm Post subject: #char for QMGR name |
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Novice
Joined: 02 Dec 2009
Posts: 23
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Hi folks,
Just a quick Question ....what is the max # of char name that can be used for QMGR name ????
We are using the MQ v 6
Thanks in advance ! |
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| fjb_saper |
| Posted: Wed Dec 16, 2009 5:27 pm Post subject: Re: #char for QMGR name |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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| RAKI wrote: |
Hi folks,
Just a quick Question ....what is the max # of char name that can be used for QMGR name ????
We are using the MQ v 6
Thanks in advance ! |
It should be specified in the programing manual or in its appendixes describing the structures...(MQMD etc... MQCONNX...)
So  &  
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MQ & Broker admin |
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| Vitor |
| Posted: Wed Dec 16, 2009 5:46 pm Post subject: Re: #char for QMGR name |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| RAKI wrote: |
what is the max # of char name that can be used for QMGR name ????
We are using the MQ v 6 |
It's the number of characters given in the constant provided to describe the max length of a queue manager name. It's also given in the documentation where it describes what characters are acceptable for use in a queue manager's name. And how many of them.
I doubt posting this quick question here was that much quicker than looking it up..... 
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Insanity is the best defence. |
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| rekarm01 |
| Posted: Wed Dec 16, 2009 10:47 pm Post subject: Re: #char for QMGR name |
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Grand Master
Joined: 25 Jun 2008
Posts: 1415
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| Vitor wrote: |
| It's the number of characters given in the constant provided to describe the max length of a queue manager name. |
MQ_Q_MGR_NAME_LENGTH? |
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| Vitor |
| Posted: Thu Dec 17, 2009 4:51 am Post subject: Re: #char for QMGR name |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| rekarm01 wrote: |
| Vitor wrote: |
| It's the number of characters given in the constant provided to describe the max length of a queue manager name. |
MQ_Q_MGR_NAME_LENGTH? |
Quite so, but I was trying to encourage reasearch.
A little fishing is good for the sole....
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| RAKI |
| Posted: Thu Dec 17, 2009 8:13 am Post subject: |
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Novice
Joined: 02 Dec 2009
Posts: 23
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"It should be specified in the programing manual "
Can let me know which programing manual it is ???? |
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| Vitor |
| Posted: Thu Dec 17, 2009 9:41 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| RAKI wrote: |
| "Can let me know which programing manual it is ???? |
Well there's only 2 so a simple process of elimination should quickly turn it up. Especially as you've been given 2 search terms to use.... 
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| RAKI |
| Posted: Thu Dec 17, 2009 1:02 pm Post subject: |
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Novice
Joined: 02 Dec 2009
Posts: 23
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Guys thanks for the help anyhow this is what it is
MQ_Q_MGR_NAME_LENGTH= The length is 48 characters.
This defines the length of the queue manager name field. |
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| Vitor |
| Posted: Thu Dec 17, 2009 2:26 pm Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| RAKI wrote: |
| This defines the length of the queue manager name field. |
And for extra points:
- what chatracters are valid?
- what link in the Infocenter describes this?
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| bruce2359 |
| Posted: Thu Dec 17, 2009 3:12 pm Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9469
Location: US: west coast, almost. Otherwise, enroute.
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| Quote: |
| what chatracters are valid? |
Vanna White got this half-right.
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| rekarm01 |
| Posted: Thu Dec 17, 2009 4:18 pm Post subject: Re: #char for QMGR name |
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Grand Master
Joined: 25 Jun 2008
Posts: 1415
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| Vitor wrote: |
| And for extra points: |
So is that 48 characters, or 48 bytes? |
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| mvic |
| Posted: Tue Dec 22, 2009 4:20 pm Post subject: Re: #char for QMGR name |
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Jedi
Joined: 09 Mar 2004
Posts: 2080
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| rekarm01 wrote: |
| Vitor wrote: |
| And for extra points: |
So is that 48 characters, or 48 bytes? |
48 single-byte characters. So yes and yes, in that order.  |
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| bruce2359 |
| Posted: Tue Dec 22, 2009 4:42 pm Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9469
Location: US: west coast, almost. Otherwise, enroute.
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| Quote: |
| 48 single-byte characters. So yes and yes, in that order. |
For clarity, WMQ has predefined elementary data types.
. MQBYTE - Byte
. MQBYTEn – String of n bytes
. MQCHAR – Single-byte character
. MQCHARn – String of n single-byte characters
MQBYTE and MQCHAR are different. Further reading in the WMQ APR and APG delineate how MQBYTE and MQCHAR behave and are treated by WMQ internals.
From the APR:
MQBYTE - byte
The MQBYTE data type represents a single byte of data. No particular
interpretation is placed on the byte; it is treated as a string of bits, and not as a binary number or character. No special alignment is required.
When MQBYTE data is sent between queue managers that use different character sets or encodings, the MQBYTE data is not converted in any way. The MsgId and CorrelId fields in the MQMD structure are like this.
MQCHAR - character
The MQCHAR data type represents a single-byte character, or one byte of a double-byte or multi-byte character. No special alignment is required.
When MQCHAR data is sent between queue managers that use different character sets or encodings, the MQCHAR data usually requires conversion in order for the data to be interpreted correctly. The queue manager does this automatically for MQCHAR data in the MQMD structure. Conversion of MQCHAR data in the application message data is controlled by the MQGMO_CONVERT option specified on the MQGET call; see the description of this option in “MQGMO – Get-message options” on page 126 for further details.
From the WMQ System Admin manual for UNIX and Windows, the crtmqm control command:
Required parameters
QMgrName
The name of the queue manager to create. The name can contain up to 48 characters.
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| mvic |
| Posted: Tue Dec 22, 2009 4:51 pm Post subject: |
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Jedi
Joined: 09 Mar 2004
Posts: 2080
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| bruce2359 wrote: |
From the WMQ System Admin manual for UNIX and Windows, the crtmqm control command:
Required parameters
QMgrName
The name of the queue manager to create. The name can contain up to 48 characters. |
This does assume single-byte characters. So 48 characters == 48 bytes in the scope of that particular piece of advice. |
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| bruce2359 |
| Posted: Tue Dec 22, 2009 4:56 pm Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9469
Location: US: west coast, almost. Otherwise, enroute.
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| Quote: |
| So 48 characters == 48 bytes in the scope of that particular piece of advice. |
For precision, and in MQ-speak, MQCHAR48 == MQCHAR48.
My point is that MQBYTE, while the same size (8-bits) as an MQCHAR, is not treated the same by WMQ. So, technically, operationally, annoyingly, a byte is not == a character.
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Lex Orandi, Lex Credendi, Lex Vivendi. As we Worship, So we Believe, So we Live. |
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