MQSeries.net :: View topic - Persistent Messages

MQSeries.net

Tech Exchange

Education

Certifications

Library

Info Center

SupportPacs

FAQÂ Â

Usergroups

RSS Feed - WebSphere MQ Support

RSS Feed - Message Broker Support

MQSeries.net Forum Index » General IBM MQ Support » Persistent Messages

Persistent Messages

« View previous topic :: View next topic »

Author

Message

wbimb

Posted: Thu Aug 17, 2006 8:06 am Post subject: Persistent Messages

Centurion

Joined: 17 Aug 2006
Posts: 144

I have a QMgr A and QMgr B

A has a remote Q defination which is connected to Local Q on QMgr B

There is a application polling on Local Q on QMgr B

The messages following from A to B are persistent messages....Now if the application polling the Q is down....and the local q becomes FULL...then where will the persistent messages go

jeevan

Posted: Thu Aug 17, 2006 8:25 am Post subject:

Grand Master

Joined: 12 Nov 2005
Posts: 1432

Regardless whether the message are persistent or non persistent once the queue is full, the messages go to DLQ. The only benefits of persistent message is that they survive even shutdown of qmgr.

wbimb

Posted: Thu Aug 17, 2006 8:28 am Post subject:

Centurion

Joined: 17 Aug 2006
Posts: 144

but then if it goes in DLQ...then wht is the use of the messages been persistant...

becuase when the message is put on DLQ it has the DLQ header attached to it

and wht if the DLQ also is full..then wht happens to the message

jeevan

Posted: Thu Aug 17, 2006 8:35 am Post subject:

Grand Master

Joined: 12 Nov 2005
Posts: 1432

The queue full situation and persistence of message are two different design concept. The first is for handling situation when a queue becomes full the persistent attribute makes a message survive even after the qmgr is shutdown. These are not mutual exclusive design.

you can write a dlq handling routine to handle the message in dlq.

wbimb

Posted: Thu Aug 17, 2006 8:37 am Post subject:

Centurion

Joined: 17 Aug 2006
Posts: 144

ok thanks...ur right..

Wht if the Dead letter q also gets full....where will the messages go then

wschutz

Posted: Thu Aug 17, 2006 8:44 am Post subject:

Jedi Knight

Joined: 02 Jun 2005
Posts: 3316
Location: IBM (retired)

To manage your DLQ, look at:
http://publib.boulder.ibm.com/infocenter/wmqv6/v6r0/index.jsp?topic=/com.ibm.mq.amqzag.doc/dlqcmd.htm
You don't need to write your own handler...

and, see this for undeliverable messages:
http://publib.boulder.ibm.com/infocenter/wmqv6/v6r0/index.jsp?topic=/com.ibm.mq.csqzae.doc/undel.htm
_________________
-wayne

wbimb

Posted: Thu Aug 17, 2006 9:01 am Post subject:

Centurion

Joined: 17 Aug 2006
Posts: 144

Thanks a lot.....the link was too good

Display posts from previous:

Page 1 of 1

MQSeries.net Forum Index » General IBM MQ Support » Persistent Messages

Jump to:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

Protected by Anti-Spam ACP