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MQSeries.net Forum Index » Workflow Engines - IBM MQ Workflow & Business Process Choreographer » High Availability Question

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calvinykw
PostPosted: Thu Oct 07, 2004 8:37 pm    Post subject: High Availability Question Reply with quote

Novice

Joined: 29 Jul 2004
Posts: 12
Location: HK

Currently, I need to setup a MQWF system with high availability support in AIX environment, I've read through the old posts here and want to confirm serveral things before start:

(1)Is it a must to have a client concentrator setup to achieve high availability by MQ cluster?

(2)According to the installation guide, MQ client should be installed in the machine which will connect to client concentrator. However, for the Web Client machine, it requires MQ Server to be installed. If I want the Web Client use Group logon via client concentrator (in order to achieve high availability), which one (MQ Client or MQ Server) should be installed in the Web Client machine for connecting to the client concentrator?

(3)Does the client concentrator route the logon to Primary system by default if all systems in system group are active?

(4)Does the client concentrator only route the request to (for example) system B if MQWF service of system A is down ? Or it needs both MQ Manager and MQWF service are down?

Thanks very much for reading my long post. Hope someone could help.
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vennela
PostPosted: Fri Oct 08, 2004 8:20 am    Post subject: Reply with quote

Jedi Knight

Joined: 11 Aug 2002
Posts: 4055
Location: Hyderabad, India

Well, I can say you are on the wrong track I guess.
First question is, is it a HACMP setup for your worflow server that you think is High Availability
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calvinykw
PostPosted: Sun Oct 10, 2004 6:57 pm    Post subject: Reply with quote

Novice

Joined: 29 Jul 2004
Posts: 12
Location: HK

Thanks for your reply.

Actually, I don't want to use HACMP for achieving high availability (That is I'm not using the supportpac WC61)

In concept and architecture guide, it stated that MQWF could acheive high availability by MQ Cluster (creating more than one systems in system group). I would like to use this method to achieve high availability.

Thanks.
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vennela
PostPosted: Sun Oct 10, 2004 7:05 pm    Post subject: Reply with quote

Jedi Knight

Joined: 11 Aug 2002
Posts: 4055
Location: Hyderabad, India

In that case what is your architecture and what are the points of failure that you are trying to eliminate
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calvinykw
PostPosted: Sun Oct 10, 2004 7:47 pm    Post subject: Reply with quote

Novice

Joined: 29 Jul 2004
Posts: 12
Location: HK

I would have 2 AIX machines for configuring two MQWF Server, 2 AIX machine for configuring two Web Clients. I'm not sure whether I should add 1 more machine for acting as client concentrator.

I would like to test if the Web Client can still logon to MQWF systems if one of the MQWF Server is down.
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