| |
|
RSS Feed - WebSphere MQ Support
|
RSS Feed - Message Broker Support
|
  |
|
| Channel Stays Running for Too Long |
« View previous topic :: View next topic » |
| Author |
Message
|
| EddieA |
 Posted: Tue May 30, 2006 1:40 pm Post subject: Channel Stays Running for Too Long |
 |
|
Jedi
Joined: 28 Jun 2001
Posts: 2453
Location: Los Angeles
|
We have an application sitting on one QM in a cluster, sending messages to a cluster Q that lives on 2 other servers. Under normal conditions, this is working fine.
But we are running some tests to see how the system copes with outages. When we pull the network cable from one of the servers, we expected the channel to drop into retry mode with the next message attempt, and then all other messages would be routed to the "good" server. However, we are seeing the channel stay in Running state for a few minutes, and messages begin to build up on the Transmit queue. Eventually, the channel does drop to a Binding/Retry state, but because of the time taken, we are "loosing" too many messages.
I did find this reference http://www.mqseries.net/phpBB2/viewtopic.php?t=20375&highlight=keepalive+hbint which implies that non-persistent messages can cause what we are seeing.
What can I configure, so that even when running non-persistent messages, the channel will drop out of rRunning status as soon as connectivity is lost.
Cheers,
_________________
Eddie Atherton
IBM Certified Solution Developer - WebSphere Message Broker V6.1
IBM Certified Solution Developer - WebSphere Message Broker V7.0 |
|
| Back to top |
|
 |
| wschutz |
| Posted: Tue May 30, 2006 2:57 pm Post subject: |
|
|
Jedi Knight
Joined: 02 Jun 2005
Posts: 3316
Location: IBM (retired)
|
so does npmspeed(normal) help?
_________________
-wayne |
|
| Back to top |
|
|
| EddieA |
| Posted: Tue May 30, 2006 3:17 pm Post subject: |
|
|
Jedi
Joined: 28 Jun 2001
Posts: 2453
Location: Los Angeles
|
Not sure yet. That's the next scheduled test.
Cheers,
_________________
Eddie Atherton
IBM Certified Solution Developer - WebSphere Message Broker V6.1
IBM Certified Solution Developer - WebSphere Message Broker V7.0 |
|
| Back to top |
|
|
| jefflowrey |
| Posted: Tue May 30, 2006 3:31 pm Post subject: |
|
|
Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
|
You might review MD0C, too. It's more about how to keep the channels running, but it does talk about some stuff that would be useful in telling a channel to stop as well.
_________________
I am *not* the model of the modern major general. |
|
| Back to top |
|
|
| PeterPotkay |
| Posted: Tue May 30, 2006 4:16 pm Post subject: |
|
|
Poobah
Joined: 15 May 2001
Posts: 7722
|
Eddie, that's some weird behaviour. Are you cuurent with MQ maintenance? (although I have never heard of a bug like that being fixed in any CSD))
Have you tried repeating the test using NP mesages over a fast channel that is a plain SNDR / RCVR channel, to possibly eliminate or implicate this as a pure clustering channel problem?
_________________
Peter Potkay
Keep Calm and MQ On |
|
| Back to top |
|
|
| happyj |
| Posted: Wed May 31, 2006 3:18 am Post subject: |
|
|
Voyager
Joined: 07 Feb 2005
Posts: 87
|
| Does setting a low value for BATCHHB on the channel help ? |
|
| Back to top |
|
|
|
|
|
| |
|
Page 1 of 1 |
|
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
|
|
|
|
