| |
|
RSS Feed - WebSphere MQ Support
|
RSS Feed - Message Broker Support
|
  |
|
| High Availability of Websphere MQ! |
« View previous topic :: View next topic » |
| Author |
Message
|
| dschnaider |
 Posted: Sat Apr 05, 2003 7:50 am Post subject: High Availability of Websphere MQ! |
 |
|
Newbie
Joined: 06 Feb 2002
Posts: 5
|
Hi,
I would like to use Websphere MQ as mine infrastructure for messaging (Pub/Sub - using supportPack).
High availability is very important in the solution (90% availability at least) and it shouldn't depend on special hardware requirments and/or software for HA.
N - Computers (N > 1) in the same LAN. Different OS.
How can I build such a configuration with MQ only?
If I have two Websphere MQ's in two sepparate machine and one of them fails - can I configure the second one to have an event as a result of the failure?
What happen with subscribers of failed MQ node?
Is it possible to build Active/Active or Active/Passive configuration without additional hardware/software?
How do I do it?
I already read alot of documentation about this subject, but it seems that people solve it with special hardware/software.
Thanks, |
|
| Back to top |
|
 |
| nyey |
| Posted: Wed Apr 09, 2003 5:37 am Post subject: |
|
|
Acolyte
Joined: 13 Mar 2003
Posts: 57
|
MQ does not provide HA feature. There is a feature (load balance through clustering), which is often confused with HA.
If you want to have active/active or active/passive, then some hardware is needed (such as MSCS on widowns, HACMP on AIX)...
nyey |
|
| Back to top |
|
|
| jefflowrey |
| Posted: Wed Apr 09, 2003 6:20 am Post subject: |
|
|
Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
|
90% availability over one year means you are willing to accept up to roughly 40 days of down time. Over one day it means you are willing to accept up to about three hours of down time.
Clustering will ensure that new messages get processed in the event of a queue manager failure, but messages already on that queue manager will not be processed until that queue manager is running again.
If you need to guarantee that *every* message gets processed on time, you need some sort of "shared disk". This typically requires (as you say) "special hardware".
What are the requirements for availability you have? How important are they? If they are less important than the cost to fulfill them, they are not very required. |
|
| 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
|
|
|
|
