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Subject: Re: [ebxml-dev] ebXML reg/rep centrailized or distributed?

Hi Zheng,

Here is how I suggest you go about your registry topology. Start with a 
single centralized registry/repository compatible with ebXMl Registry 
V2.1 specification. ebXML Registry specification does not describe an 
interface to the repository that is separate from the registry. Thus 
"Centralized registry and distributed repositories." is not specified 
 and therefor only a vendor specific option. ebXMl Registry V2.1 does 
not describe distributed registry topology. This feature is described by 
the ebXMl Registry V3.0 specifications which are still under 
development. A preliminary V3.0 spec will be available for public review 
and early adopters sometime soon. Until then any implementation of 
distributed ebXML registry will be vendor specific and non-standard.

So you start now with a centralized registry and in a few months as your 
data grows and as V3.0 ebXMl Registries become available you move to a 
distributed registry/repository topology by partitioning your data among 
multiple registries forming a cooperative registry federation topology.

Make sure you ask your ebXML registry vendor what their stated plans are 
for rolling out support for ebXMl Registry V3.0.

Good luck.


Zheng Liang wrote:

>Hi all,
>Our organization is thinking of setup an ebXML registry/repository.  However, we don't know which of the following structures will be suitable for us.  We has one management board (corporate) and 8 clusters. The main question is whether we should run a centralized registry or distributed registries, what should we consider, what will be the benefit and difficulties?
>1. Centralized registry and centralized repository.
>1. Centralized registry and distributed repositories.
>2. Distributed registries and distributed repositories.
>Thanks for your help in advance.
>Jane Liang
>XML developer
>Corporate Architecture Branch
>Management Board Secretariat
>Toronto, ONT, M7A 1N3
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