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Re: LOD Instance Update re. new Data Sets Loaded.

From: Kingsley Idehen <kidehen@openlinksw.com>
Date: Fri, 06 Mar 2009 10:22:00 -0500
Message-ID: <49B13F98.4070807@openlinksw.com>
To: Yrjänä Rankka <ghard@openlinksw.com>
CC: Georgi Kobilarov <georgi.kobilarov@gmx.de>, Linked Data community <public-lod@w3.org>
Yrjänä Rankka wrote:
> Georgi Kobilarov wrote:
>> Hi Kingsley,
>>
>> DESCRIBE <http://dbpedia.org/resource/London> takes 3 minutes to 
>> execute on lod.openlinksw.com ...
>>
>>   
> It took only a few seconds when I tried it. Takes time to warm up a 
> pan of this size, as is the case with any DBMS. As the working set 
> stabilizes in memory, results will come faster.
Yrjana,

Georgi just happened to attempt a DESCRIBE while maintenance was in 
progress.

I tested the same DESCRIBE against a number of large resources once the 
job was done and it took nothing like 3 mins (as expected anyhow).

This is really much ado about nothing,  especially if you put the entire 
set of current activities into appropriate context. The LOD instance 
remains a "LOD Cloud Load In Progress", as you know.

We are even going to be reloading Uniprot one more time sometime today 
(i.e. in the next hour or so). The Uniprot load suffered some of the 
ailments that afflicted the initial NeuroCommons load (which was 
reloaded last Friday).

Others:

When the LOD instance is ready, and signed off by me, there will be a 
simple optimization guide that reads something like this:

The more memory contributing resources you add to your cluster the 
faster the response time.  What simply need make a few things crystal 
clear via illustration heavy documentation re.  the makeup and 
administrative tasks associated with a Virtuoso Cluster installation.

We plan to make what we are doing reusable as a packaged solution for 
next generation Linked Data application developers and service 
providers. And in dog-fooding style we will offer one example of such a 
solution.


Kingsley
>
> Yrjänä
>> Georgi
>> -- 
>> Georgi Kobilarov
>> Freie Universität Berlin
>> www.georgikobilarov.com
>>
>>  
>>> -----Original Message-----
>>> From: public-lod-request@w3.org [mailto:public-lod-request@w3.org] On
>>> Behalf Of Kingsley Idehen
>>> Sent: Thursday, March 05, 2009 7:39 PM
>>> To: public-lod@w3.org
>>> Cc: Linked Data community
>>> Subject: LOD Instance Update re. new Data Sets Loaded.
>>>
>>> All,
>>>
>>> Linked Movies Database and RKB explorer are now part of the LOD
>>>     
>> hosting
>>  
>>> instance.
>>>
>>> Data Set Owners (re. the above): Please verify all the data is there
>>> etc..
>>>
>>> Endpoint: http://lod.openlinksw.com/sparql
>>>
>>> Faceted Search & Find Interface:
>>> http://lod.openlinksw.com/fct/facet.vsp .
>>>
>>> -- 
>>>
>>>
>>> Regards,
>>>
>>> Kingsley Idehen          Weblog:
>>>     
>> http://www.openlinksw.com/blog/~kidehen
>>  
>>> President & CEO
>>> OpenLink Software     Web: http://www.openlinksw.com
>>>
>>>
>>>
>>>     
>>
>>
>>   
>
>


-- 


Regards,

Kingsley Idehen	      Weblog: http://www.openlinksw.com/blog/~kidehen
President & CEO 
OpenLink Software     Web: http://www.openlinksw.com
Received on Friday, 6 March 2009 15:22:39 UTC

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