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| wmqiadmin |
 Posted: Fri Mar 03, 2006 9:07 am Post subject: Confused... Compute or Mapping node |
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Disciple
Joined: 19 Jun 2005
Posts: 163
Location: epping UK
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Hi Every buddy,
We are designing msg flow and are confused to use mapping node or compute node. Our main concern here is through-put and response time of the message. Our messages will be around 4MB size.
I have used the compute node and feel positve for it, & never used mapping node so can any buddy please guide me what to choose and pros& cons of mapping node.
Thanks |
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| jefflowrey |
| Posted: Fri Mar 03, 2006 9:42 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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The best way to answer questions about performance is to measure the performance yourself.
_________________
I am *not* the model of the modern major general. |
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| mqmatt |
| Posted: Fri Mar 03, 2006 3:18 pm Post subject: |
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Grand Master
Joined: 04 Aug 2004
Posts: 1213
Location: Hursley, UK
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I second Jeff's comment... As the mapping node generates ESQL under the covers, it depends whether you can write better ESQL than the mapping node  |
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| protocol |
| Posted: Thu Mar 09, 2006 1:48 am Post subject: |
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Apprentice
Joined: 25 Feb 2005
Posts: 41
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If you use the mapping node, you cannot write user defined functions and invoke them. This however is possible with the compute node. If you think you might need to write your own functions and invoke them, then go for the compute node.
Cheers ! |
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| mgk |
| Posted: Thu Mar 09, 2006 2:48 am Post subject: |
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Padawan
Joined: 31 Jul 2003
Posts: 1642
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Hi,
| Quote: |
| If you use the mapping node, you cannot write user defined functions and invoke them |
This is wrong. The mapping node can invoke user defined ESQL Functions (and Procedures that have RETURN values), even ones with a LANGUAGE clause of JAVA or DATABASE!
Regards,
_________________
MGK
The postings I make on this site are my own and don't necessarily represent IBM's positions, strategies or opinions. |
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| paustin_ours |
| Posted: Thu Mar 09, 2006 9:06 am Post subject: |
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Yatiri
Joined: 19 May 2004
Posts: 667
Location: columbus,oh
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| no access to environment tree if you use mapping. |
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