| |
|
RSS Feed - WebSphere MQ Support
|
RSS Feed - Message Broker Support
|
| Set MessageID and CorrelationID |
« View previous topic :: View next topic » |
| Author |
Message
|
| bruce2359 |
 Posted: Fri May 20, 2011 5:57 am Post subject: |
 |
|
Poobah
Joined: 05 Jan 2008
Posts: 9470
Location: US: west coast, almost. Otherwise, enroute.
|
| PeterPotkay wrote: |
| gbaddeley wrote: |
| and cater for the possibility that messages might be missing or out of sequence. |
or duplicate messages (duplicated by the sending app for whatever reason)
| gbaddeley wrote: |
| Quote: |
Does MQ series guaranty the order of the message delivery?
In other words, does it guaranty the FIFO delivery? |
No. |
It does when certain, rather restrictive and not necessarily wise conditions are met. |
WMQ assures (not guarantees) message delivery.
Assured message delivery is explained in detail in the Application Programming Reference, and other documents. Orderly retrieval of messages is also discussed.
An example where WMQ cannot assure orderly (in-order) delivery, and thus retrieval, of messages: one of the messages in the sequence ends up in a dead-letter queue.
If you need to ask "why would a message end up in a dead-letter queue?", then you need to understand WMQ fundamentals. You can get this knowledge by downloading and reading this http://www.redbooks.ibm.com/abstracts/sg247128.html?Open
_________________
I like deadlines. I like to wave as they pass by.
ב''ה
Lex Orandi, Lex Credendi, Lex Vivendi. As we Worship, So we Believe, So we Live. |
|
| Back to top |
|
 |
|
|
|
|
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
|
|
|
|
