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| Client and Server on the same box |
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| muneetb |
 Posted: Wed May 21, 2003 8:57 am Post subject: Client and Server on the same box |
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Newbie
Joined: 25 Oct 2002
Posts: 8
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Hi--
We are planning on using an application that connects to a MQSeries queue manager on the same box using a client connection. There could be as many as 400 connections active on this box. My hunch is that we would be better off not using a client connection. Can someone enlighten me on this subject. Is there any documentation on it. I am mostly interested in learning the inner workings of client/MQI connections.
Thanks in advance.
--Muneet |
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| vennela |
| Posted: Wed May 21, 2003 9:16 am Post subject: |
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Jedi Knight
Joined: 11 Aug 2002
Posts: 4055
Location: Hyderabad, India
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| Is there any reason that you want client connections instead of local bindings. |
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| muneetb |
| Posted: Wed May 21, 2003 9:35 am Post subject: |
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Newbie
Joined: 25 Oct 2002
Posts: 8
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Vennela--
It is not me, some one else is planning on doing that. I am the resident MQ expert so I need to provide guidance in this matter. I order to provide them with an analysis I have to be sure that I understand how these connections work. |
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| oz1ccg |
| Posted: Thu May 22, 2003 12:09 am Post subject: |
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Yatiri
Joined: 10 Feb 2002
Posts: 628
Location: Denmark
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Using the client connection to the local application connecting to the local qmgr (on same Box), adds a lot of overhead to communication protecols even if you use the loopback addr(127.0.0.1). There are the basic communication overhead, which does not appear when using the direct connection to MQ.
You will add the overhad from the listener and channel initiator too. You will have the channel initiator to do the MQ access for you, and if you have requirement for two-phase commit using clients.... you will have to be on MQ5.3 CSD3, then we're talking licensed software...
So if it's planned that your 400 applications starts and stops offently, I would not use MQ client when I don't have to.
Just my $0.02 
_________________
Regards, Jørgen
Home of BlockIP2, the last free MQ Security exit ver. 3.00
Cert. on WMQ, WBIMB, SWIFT. |
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| leongor |
| Posted: Thu May 22, 2003 6:48 am Post subject: |
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Master
Joined: 13 May 2002
Posts: 264
Location: Israel
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There is really a few reasons why you'll use client connection on local queue manager.
One of them - if you want from the same process/diffirent threads connect to more than one local queue manager.
BTW, Jørgen, I think channel initiator is not a player in client connection.
_________________
Regards.
Leonid.
IBM Certified MQSeries Specialist. |
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