Posted: Tue Jul 06, 2010 10:46 am Post subject: MQ newbie
Newbie
Joined: 06 Jul 2010 Posts: 2
Hello all
I am relatively new to MQ . We have one existing MQ server..and we are looking at options for clustering/failover.
I have been doing some reading and have a question.
Suppose I create a MQ cluster with 2 MQmgrs ( make them full repos).
We dont really have a requirement for more than 2 atm.
All our clients run externally - meaning we dont have any apps connecting to MQ on the Qmgr itself.
Am I right in thinking this does not offer me any failover by itself ..unless I use a HA solution or go with the multi instance qmgr route?
Since apps can connect only to one qmgr ..if that goes down, they are out of luck..correct?
What if I were to put a load balancer in front of these and have clients connect to a VIP ? Is that a common approach?
Posted: Tue Jul 06, 2010 11:48 am Post subject: Re: MQ newbie
Grand High Poobah
Joined: 11 Nov 2005 Posts: 26093 Location: Texas, USA
yasvish wrote:
All our clients run externally - meaning we dont have any apps connecting to MQ on the Qmgr itself.
By which you mean there are no applications running on the server that hosts the queue manager?
yasvish wrote:
Since apps can connect only to one qmgr ..if that goes down, they are out of luck..correct?
Only if they're not configured to connect to a second queue manager in the event of the failure of the first. Which most client code is and all should be.
yasvish wrote:
What if I were to put a load balancer in front of these and have clients connect to a VIP ? Is that a common approach?
It's not uncommon. It's more common to have the apps connect to a second queue manager (which may or may not be in a cluster with the first; it's nothing to do with this issue).
Much potentially helpful discussion of this in the Clustering & Clients section of this forum. _________________ Honesty is the best policy.
Insanity is the best defence.
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