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Big IP - Mq

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PeterPotkay

Posted: Wed Apr 18, 2012 8:33 am Post subject:

Poobah

Joined: 15 May 2001
Posts: 7723

rvicter2 wrote:

But my point(assertion) was CCDT does not load balance messages and does not load balance new connections. I stick by it.

It does not load balance messages. And neither does BigIP. If you want to load balance messages, you need 2 or more Queue Managers set up in an MQ cluster.

It does load balance new connections. It is a feature new in MQ 7. See section 5.7 in this redbook.
http://www.redbooks.ibm.com/redbooks/pdfs/sg247583.pdf

And the CLNTWGHT parm here:
http://publib.boulder.ibm.com/infocenter/wmqv7/v7r0/topic/com.ibm.mq.csqzaj.doc/sc11040_.htm
_________________
Peter Potkay
Keep Calm and MQ On

Vitor

Posted: Wed Apr 18, 2012 8:42 am Post subject:

Grand High Poobah

Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA

rvicter2 wrote:

But my point(assertion) was CCDT does not load balance messages and does not load balance new connections. I stick by it.

No it doesn't load balance messages and I never said it did.

It does load balance new connections because the documentation says it does. If it doesn't then you're doing something wrong or you've found a software bug which IBM will fix.

I admire the way you stick to your point in the face of documentation to the contrary. This kind of determination will take you a long way.
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Honesty is the best policy.
Insanity is the best defence.

Vitor

Posted: Wed Apr 18, 2012 8:45 am Post subject:

Grand High Poobah

Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA

One point I should probably clarify.

I said client network level trafffic could be distributed with a network level device but there were pitfalls & problems.

I was speaking principally of connection traffic. One of the pitfalls & problems is that at some point someone will try and distrbute message traffic as well at which point it all stops working. You cannot do that kind of load balancing with a network level device.
_________________
Honesty is the best policy.
Insanity is the best defence.

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