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Message
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| ddm |
 Posted: Thu Jan 08, 2004 2:39 pm Post subject: MQ Queue CurrentDepth property in amqmdnet |
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Apprentice
Joined: 17 Nov 2003
Posts: 40
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I am always getting an error when I try to use the MQQueue.CurrentDepth property to return the number of messages inside the queue. The code is very straight forward:
int numMsg = MyQueue.CurrentDepth
anybody encountered the same problem? How do I fix it?
Thanks in advance
Darell |
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| jefflowrey |
| Posted: Thu Jan 08, 2004 3:38 pm Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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What error are you getting?
How do you know the error is on the call you posted?
What does the code that connects to the QM and the code that opens the queue look like?
Are you specifiying the Inquire option when opening the queue?
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I am *not* the model of the modern major general. |
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| kirani |
| Posted: Thu Jan 08, 2004 4:23 pm Post subject: |
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Jedi Knight
Joined: 05 Sep 2001
Posts: 3779
Location: Torrance, CA, USA
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Put try-catch block around your code to catch MQException. Here is a sample code in C#,
| Code: |
try
{
int numMsg = MyQueue.CurrentDepth;
}
catch (MQException mqe)
{
System.Console.WriteLine( "MQQueue::CurrentDepth ended with " + mqe.Message );
}
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_________________
Kiran
IBM Cert. Solution Designer & System Administrator - WBIMB V5
IBM Cert. Solutions Expert - WMQI
IBM Cert. Specialist - WMQI, MQSeries
IBM Cert. Developer - MQSeries
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| JasonE |
| Posted: Fri Jan 09, 2004 1:50 am Post subject: |
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Grand Master
Joined: 03 Nov 2003
Posts: 1220
Location: Hursley
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| Until Fixpack 6, dont use mqe.Message, as it returns the 'helpful' "Error in the application". Use ToString for fixpack 5 code, and Message afterwards. |
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| bower5932 |
| Posted: Fri Jan 09, 2004 6:30 am Post subject: |
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Jedi Knight
Joined: 27 Aug 2001
Posts: 3023
Location: Dallas, TX, USA
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| Without seeing the error, I'd guess that you don't have the queue opened so that you can inquire the current depth. The C define is MQOO_INQUIRE. |
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| ddm |
| Posted: Fri Jan 09, 2004 4:28 pm Post subject: |
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Apprentice
Joined: 17 Nov 2003
Posts: 40
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| Thanks to all the MQOO_INQUIRE did it. |
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| ddm |
| Posted: Tue Jan 13, 2004 3:08 pm Post subject: |
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Apprentice
Joined: 17 Nov 2003
Posts: 40
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JasonE,
Can you elaborate further on this:
"Use ToString for fixpack 5 code, and Message afterwards."
Where do I get the FixPack 5? Can you give me a quick sample on how to display a more user friendly message.
Thanks! |
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| JasonE |
| Posted: Wed Jan 14, 2004 2:00 am Post subject: |
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Grand Master
Joined: 03 Nov 2003
Posts: 1220
Location: Hursley
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.net support was initially shipped as a unsupported support pack, and then got migrated into the base product at 5.3 csd / fixpack 5. This is downloadable from:
https://www6.software.ibm.com/dl/wsmqcsd/wsmqcsd-p
Note that post fixpack install, you need to either manually register the dll into the GAC, or set up config files to point to the dll - see the memo.ptf
mqe.Message will print out eg. MQRC_NO_MESSAGES_AVAILABLE (or whatever) from fixpack 6, but isnt implemented at fixpack 5, so you get the inherited "Error from application". mqe.ToString will print out the useful info (ReasonCode=2033, CompletionCode=2 or whatever). |
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| Rls65 |
| Posted: Thu Jan 29, 2004 6:03 am Post subject: |
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Newbie
Joined: 29 Jan 2004
Posts: 7
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| There is a problem when query QueueDepth on an Alias Queue. Is the queue an alias queue???? |
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| ddm |
| Posted: Thu Jan 29, 2004 8:10 am Post subject: |
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Apprentice
Joined: 17 Nov 2003
Posts: 40
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I am not even sure what an Alias Queue is. I hope you can shed light on this. But I think I am trying to get the current depth of just a regular queue.
Thanks! |
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| saju |
| Posted: Mon Feb 02, 2004 11:34 am Post subject: |
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Newbie
Joined: 02 Feb 2004
Posts: 9
Location: India
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Try this:
QueueMgr QMgr = new QueueMgr();
try{
MQEnvironment.hostname = Host;
MQEnvironment.port = Port;
MQEnvironment.channel = Channel;
// Establishing connection with Queue Manager
QMgr.QMgr = new MQQueueManager(QManager);
}catch (MQException ex) {
....
}
MQQueue qRqst=QMgr .accessQueue(Queuename, MQC.MQOO_FAIL_IF_QUIESCING | MQC.MQOO_INQUIRE, null, null, null);
...
qRqst.getCurrentDepth();
This piece of code is written in Java.
this will help u. It works for me.
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Dreams get you into the future and add excitement to the present... |
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| ddm |
| Posted: Tue Feb 03, 2004 9:08 am Post subject: |
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Apprentice
Joined: 17 Nov 2003
Posts: 40
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| Thanks saju! the current depth is already fixed. the "INQUIRE" option did it. (see message thread.) However, I am asking info about an Alias Queue. do you know anything about it? |
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| saju |
| Posted: Tue Feb 03, 2004 9:26 am Post subject: |
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Newbie
Joined: 02 Feb 2004
Posts: 9
Location: India
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Some extracts from MQSeries information center:
Alias queues
To your program, an alias queue appears to be a queue, but it is really an MQSeries object that you can use to access another queue. This means that more than one program can work with the same queue, accessing it using different names.
Hope this will give you some more information on alias queues.
Have a nice day!!
If you have details on EBCDIC to "extended ASCII" mapping, I appreciate if you can please pass it on to me.
- Saju
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Dreams get you into the future and add excitement to the present... |
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