[MOBY-l] Multiple Centrals on Same server

[Mark Wilkinson]

Hi Karthik!

Actually, I didn't express myself clearly.  Running multiple MOBY Centrals  
on the same machine is fine - I know from personal experience that I can  
run up to three instances on the same server.  It is the CLIENT libraries  
that I am not sure about.  I have never tried "in the real world" to use  
the Perl client libraries to talk to more than one instance of MOBY at the  
same time.  I wrote them such that they SHOULD be able to do this, but I  
have never thoroughly tested this functionality, so I am not certain that  
it will work for you.

I can assure you, however, that running multiple instances of teh registry  
on the same machine in different instances of Apache works just fine :-)

M




On Sun, 11 Feb 2007 19:35:51 -0800, Rajasekar Karthik  
<karthik085 at gmail.com> wrote:

> Mark,
>
> You are right. I will just setup multiple central on different machine.
> After I am more comfortable with MOBY, I will try it.
>
> On 2/11/07, Mark Wilkinson <markw at illuminae.com> wrote:
>>
>> As far as I know, nobody has ever tried this, so you are breaking new
>> ground (and as someone new to MOBY, that might not be the easiest thing  
>> to
>> do :-) )
>>
>> But the answer to your question is that you can only run one instance of
>> MOBY Central per instance of the Apache server.  You can run multiple
>> instances of Apache, each with their own config file, where each config
>> file points to a different mobycentral.config file.  On the client side
>> (in Perl, I don't know about Java) you can create an instance of
>> MOBY::Client::Central that connects to two different MOBY Centrals by  
>> name
>> (you create the name when you assign the URL during creation of the
>> object), and you have to specify the name of the MOBY Central you are
>> addressing when you make your MOBY Central call using the "Registry =>
>> "somename"" parameter.
>>
>> Some MOBY::Client::Central calls don't allow you to address more than  
>> one
>> registry.  In particular, ones that involve registration of new objects,
>> service types, or namespaces.  That's because the ontologies are assumed
>> to be canonical, and can only exist in one place -
>> mobycentral.icapture.ubc.ca - if you create your own registry and chose  
>> to
>> run your own ontologies there is NO guarantee that you will continue to  
>> be
>> interoperable with any other services in the world.
>>
>> Having said that, for other calls (like findService and registerService)
>> you should be able to run as many registries as you wish.
>>
>> ... caveat emptor... I don't think anyone has EVER tried to do this, so
>> the code might not work...
>>
>> M
>>
>>
>>
>>
>>
>> On Sun, 11 Feb 2007 19:20:56 -0800, Rajasekar Karthik
>> <karthik085 at gmail.com> wrote:
>>
>> > Hi,
>> >
>> > Is it possible to setup multiple local centrals on a same server? With
>> > the
>> > databases, there can be multiple ones created. All the executables  
>> like
>> > MOBY-Central.PL, OntologyServer.cgi....can be moved into two  
>> directories
>> > of
>> > webserver cgi-bin folder. But, what about httpd.conf configuration  
>> file
>> > in
>> > apache? How do I modify that?
>> >
>>
>>
>>
>> --
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>
>
>



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