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| voyager |
 Posted: Mon Jun 06, 2005 4:59 am Post subject: Persistence |
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Centurion
Joined: 28 Dec 2004
Posts: 127
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All,
I have a question with persistence on MQ Queues. I have turned on the property
'Default Persistence' to 'Persistent' on some of the MQ Queues.
I rebooted the machine. After the machine got rebooted, the messages are lost on those queues.
Is there any way to keep the messages even after the machine gets rebooted?
I was under the impression that by keeping the property 'Persistent' on MQ Queue,
I could retain the messages on the Queue.
Any suggetions/ideas greatly appreciated.
Thank you!
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voyager |
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| kevinf2349 |
| Posted: Mon Jun 06, 2005 5:05 am Post subject: |
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Grand Master
Joined: 28 Feb 2003
Posts: 1311
Location: USA
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Persistence is determined by the message not the queue.
Check to see if the application is setting the persistence. |
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| voyager |
| Posted: Mon Jun 06, 2005 5:29 am Post subject: |
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Centurion
Joined: 28 Dec 2004
Posts: 127
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So, I have to check if the application that is putting the message in the queue is using persistence or not? Is that right?
Actually, there is a program on AS/400 that is putting the messages in MQ Q's.
Thank you,
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voyager |
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| jefflowrey |
| Posted: Mon Jun 06, 2005 5:46 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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| voyager wrote: |
| So, I have to check if the application that is putting the message in the queue is using persistence or not? Is that right? |
Yes.
_________________
I am *not* the model of the modern major general. |
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| voyager |
| Posted: Mon Jun 06, 2005 5:48 am Post subject: |
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Centurion
Joined: 28 Dec 2004
Posts: 127
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Thank you all for your valuable comments
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voyager |
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| JT |
| Posted: Mon Jun 06, 2005 5:49 am Post subject: |
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Padawan
Joined: 27 Mar 2003
Posts: 1564
Location: Hartford, CT.
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| Quote: |
| So, I have to check if the application that is putting the message in the queue is using persistence or not? Is that right? |
You could also browse the message in the queue to view the persistence setting, using tools like MQExplorer or RFHUTILC. |
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| voyager |
| Posted: Mon Jun 06, 2005 6:10 am Post subject: |
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Centurion
Joined: 28 Dec 2004
Posts: 127
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Yes,
I did browse the Queue and looked at the message. It is showing 'Not Persistent'
Thank you,
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voyager |
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| voyager |
| Posted: Mon Jun 06, 2005 9:41 am Post subject: |
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Centurion
Joined: 28 Dec 2004
Posts: 127
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All,
I am back with the same question. In our system, we have an AS/400 system from where
an AS/400 program writes messages to a remote Queue and then the messages are pushed
from the remote Queue via Xmit Queue to the In-Queue on Windows server.
Interchange Server on Windows Server reads the In-Queue and consumes them.
Question: AS/400 program that writes messages to remote Queue is only responsible
for making the message persistent or not persistent on AS/400 box.
But once the messages leave AS/400 system and come onto Windows system, then Windows system
should take care of the 'Persistency'. So, in order to make the messages in the Queue
persistent on Windows system, I gave the default persistence property to 'Persistent'.
But, when I rebooted the system, the messages did not stay in the Queue.
Since the messages are coming from a remote AS/400 system, I appreciate,
if anybody could suggest me a workaround to make the messages persistent.
Thank you!
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voyager |
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| bower5932 |
| Posted: Mon Jun 06, 2005 9:44 am Post subject: |
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Jedi Knight
Joined: 27 Aug 2001
Posts: 3023
Location: Dallas, TX, USA
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| voyager wrote: |
| AS/400 program that writes messages to remote Queue is only responsible for making the message persistent or not persistent on AS/400 box. But once the messages leave AS/400 system and come onto Windows system, then Windows system should take care of the 'Persistency'. |
If your AS/400 program is marking the messages as persistent, then they should show up as persistent on the Windows machine. WMQ isn't going to change the persistence of a message on you. |
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| voyager |
| Posted: Mon Jun 06, 2005 10:11 am Post subject: |
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Centurion
Joined: 28 Dec 2004
Posts: 127
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No,
AS/400 program which is responsible for putting the message in the MQ Queue is not marking
the message as 'Persistent'. Can we try another trick like making the Xmit Queue on AS/400 as persistent?
Do you think that would make the message on WMQ also persistent?
Thank you,
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voyager |
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| EddieA |
| Posted: Mon Jun 06, 2005 10:22 am Post subject: |
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Jedi
Joined: 28 Jun 2001
Posts: 2453
Location: Los Angeles
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| Quote: |
| AS/400 program which is responsible for putting the message in the MQ Queue is not marking the message as 'Persistent' |
In which case the message is picking up the "default" persistence of the Remote Q that the message is being put to. It is this queue that you should change the default persistence to Persistent.
Cheers,
_________________
Eddie Atherton
IBM Certified Solution Developer - WebSphere Message Broker V6.1
IBM Certified Solution Developer - WebSphere Message Broker V7.0
Last edited by EddieA on Mon Jun 06, 2005 10:23 am; edited 2 times in total |
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| vennela |
| Posted: Mon Jun 06, 2005 10:22 am Post subject: |
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Jedi Knight
Joined: 11 Aug 2002
Posts: 4055
Location: Hyderabad, India
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| If you make the QUEUE as DEFPSIST as YES and in the program don't define any persistence options for message, then the messages will be persistent. |
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| jefflowrey |
| Posted: Mon Jun 06, 2005 10:51 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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If the application is explicitly setting Persistance to Non-Persistant, there is nothing you can do to correct this.
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I am *not* the model of the modern major general. |
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| voyager |
| Posted: Mon Jun 06, 2005 10:52 am Post subject: |
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Centurion
Joined: 28 Dec 2004
Posts: 127
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Thank you all,
I would speak to AS/400 Sys. Admin to make to the Remote Queue on AS/400 PERSISTENT
and see if WMQ make the messages on the Queues PERISTENT.
Thank you very much once again for your valuable suggestions!
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voyager |
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| voyager |
| Posted: Mon Jun 06, 2005 11:22 am Post subject: |
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Centurion
Joined: 28 Dec 2004
Posts: 127
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All,
Back on the same problem. I contacted AS/400 Admin to set the
on Remote Queues. But, still the messages that are coming into WMQ are marked as
Any ideas greatly apperciated.
Thank you,
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voyager |
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