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| anilchauhanmanu |
 Posted: Tue Jul 26, 2011 1:17 am Post subject: Message lost in floow |
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Newbie
Joined: 26 Jul 2011
Posts: 9
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In My flow , where PUB SUB case is using .
where i will find message If no one has subscribed for those topics. |
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| WMBDEV1 |
| Posted: Tue Jul 26, 2011 1:23 am Post subject: |
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Sentinel
Joined: 05 Mar 2009
Posts: 888
Location: UK
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| anilchauhanmanu |
| Posted: Tue Jul 26, 2011 1:46 am Post subject: |
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Newbie
Joined: 26 Jul 2011
Posts: 9
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Hi,
Thanks for reply.....But what i can do to avoid loosing message |
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| gbaddeley |
| Posted: Tue Jul 26, 2011 2:54 am Post subject: |
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Jedi Knight
Joined: 25 Mar 2003
Posts: 2538
Location: Melbourne, Australia
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| anilchauhanmanu wrote: |
Hi,
Thanks for reply.....But what i can do to avoid loosing message |
Make it a retained message. Then it won't be so loose.
_________________
Glenn |
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| lancelotlinc |
| Posted: Tue Jul 26, 2011 4:27 am Post subject: |
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Jedi Knight
Joined: 22 Mar 2010
Posts: 4941
Location: Bloomington, IL USA
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I hate it when I loose messages. By using a Singleton, I can track them through the system. That way, when they drop on the floor, at least I know which node dropped the message.
Vitor says: Singleton ... !! 
_________________
http://leanpub.com/IIB_Tips_and_Tricks
Save $20: Coupon Code: MQSERIES_READER |
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| mqjeff |
| Posted: Tue Jul 26, 2011 4:31 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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A message that is published to 0 subscribers is not lost.
It is delivered successfully to all eligible receivers.
If your concern is to track all messages produced, regardless of who is interested in them, then you should create a program that subscribes to everything, and have it log the messages that it receives.
Then there will never be a topic with 0 subscribers.
And you can do something sensible to log the messages like use a database, rather than storing them in memory in a singleton that will get lost if the JVM dies. |
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| Vitor |
| Posted: Tue Jul 26, 2011 4:47 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| lancelotlinc wrote: |
I hate it when I loose messages. By using a Singleton, I can track them through the system. That way, when they drop on the floor, at least I know which node dropped the message.
Vitor says: Singleton ... !! |
But if you read the post rather than just the words you wish it said, this isn't a lost message, as my most worthy associate points out.
Also if you want to track messages through a flow I put it to you that using WMB monitoring is better than a Singleton as that works on all nodes not just a JCN. 
_________________
Honesty is the best policy.
Insanity is the best defence. |
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| lancelotlinc |
| Posted: Tue Jul 26, 2011 5:59 am Post subject: |
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Jedi Knight
Joined: 22 Mar 2010
Posts: 4941
Location: Bloomington, IL USA
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