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| computenode and databasenode |
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| Vijji |
 Posted: Sat Sep 24, 2005 10:39 am Post subject: computenode and databasenode |
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Voyager
Joined: 30 Aug 2005
Posts: 83
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Hi everybody,
I have a doubt about computnode and databasenode.Both nodes can do the database operations.But Which node is the best one. |
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| hopsala |
| Posted: Sat Sep 24, 2005 11:48 am Post subject: |
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Guardian
Joined: 24 Sep 2004
Posts: 960
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| There is no "best one", each is simply more fitting to a specific need: If you just want to perform a simple DB operation and that's it, it would be easier and more readable to use dbnode (or dbinsert and similar nodes); If, however, you want to add a more complex logic to the brew, you should probably use compute nodes. |
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| mgk |
| Posted: Sun Sep 25, 2005 6:08 am Post subject: |
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Padawan
Joined: 31 Jul 2003
Posts: 1642
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The only difference between a database node and a compute node is that a database node never creates a new output message, and a compute node always creates a new output message. Therefore, if you do not need / want a new output message (which means tree copying usually) the use a database node. However if you want a new message, then use a compute node.
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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