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| MQ 6.0 Hot-Standby |
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| kun.leeing |
 Posted: Fri Nov 28, 2008 11:44 pm Post subject: MQ 6.0 Hot-Standby |
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Disciple
Joined: 27 Sep 2008
Posts: 171
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hi, everybody
I have a question about how does MQ make hot-standby?
Whenever one is shut down, another can takeover it.
'Cause every client set up a channel and params of IP and port, they keep connection with one qmgr. I don't want to change Ip setting manually to connect the standby when primary shut down.
I've added two qmgrs into a cluster,but how can i make a vitual IP for all of the clients and how can i achieve hot-standby? |
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| Vitor |
| Posted: Sat Nov 29, 2008 1:24 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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You've asked a lot of questions on a wide topic here, and have some topics confused it seems.
To summarise:
WMQ doesn't make hot standby - you do. This is usually done with HA software or the WMQv6 backup queue manager facility, which is a kind of warm standby.
This is nothing to do with a client losing connection and needing to re-establish it. Client connections can be lost to a running queue manager, as the number of posts regarding 2009 & 2019 reason codes indicate. Again, you provide the failover, typically by coding your application to expect this to happen once in a while and providing a connection table.
If you can use the 2 queue managers in a cluster as the multiple targets for a client then a) it's a pointlessly small cluster b) there's something very odd about your topolgy.
Enjoy your research on these topics. 
_________________
Honesty is the best policy.
Insanity is the best defence. |
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| PeterPotkay |
| Posted: Sat Nov 29, 2008 6:03 am Post subject: |
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Poobah
Joined: 15 May 2001
Posts: 7722
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