About VO registry

[Thomas Boch]

Dear all,

Le 28/05/2019 à 11:23, Jorge A. Pérez Prieto a écrit :
> Dear Markus and Costas,
>
> great! thanks a lot, now they appear in the GAVO directory and pyVO. 
> Nevertheless, they still are not shown in the NVO and MAST directories 
> or Aladin 10 (they do in Aladin 9); it's not critical but bit strange.

Actually, Aladin 10 is not querying the VO registry directly but is 
querying the CDS MOCServer which harvests the VO registry regularly. 
Your services will appear in Aladin v10 when we'll launch another 
update, next week.

Best regards,
Thomas
>
> Regards and thanks again,
> Jorge
>
> O 24/05/19 ás 10:26, Markus Demleitner escribiu:
>> Dear Jorge, hi Costas,
>>
>> On Thu, May 23, 2019 at 05:35:31PM +0300, Kostandin Vrioni wrote:
>>> I have been using the Euro-VO Registry for many years to register
>>> some VO services of my institution (IAC, Tenerife, Spain) and I am
>>> very happy the application, so many thanks for your work.
>>> We are having an issue with the discovery of our services
>>> registered in the Euro-VO Registry and maybe you can help me.
>>> Although the services seems to work correctly, for example (SIAP):
>>>            ivo://iacvo/IAC80
>>>         ivo://iacvo/PSZ1y2
>>> I'm not been able to find them in most part of the VO discovery
>>> tools; I've tried these:
>> Interesting.  Let's see: The OAI-PMH interface at the EuroVO Registry
>> actually delivers the record *now* when asked about it
>> (http://registry.euro-vo.org/oai.jsp?verb=GetRecord&metadataPrefix=ivo_vor&identifier=ivo://iacvo/IAC80) 
>>
>> and even includes it when asked what changed when that record last
>> changed:
>> http://registry.euro-vo.org/oai.jsp?verb=ListRecords&metadataPrefix=ivo_vor&from=2018-12-21&until=2018-12-22&set=ivo_managed. 
>>
>>
>> Meanwhile, none of my registry mirrors had seen that record in what
>> they harvested over the last six month or so (which, of course, the
>> do for the Euro-VO publishing registry, too).
>>
>> I didn't bring all that together  and told the Heidelberg mirror to
>> just do a full re-harvest of the EuroVO publishing registry. And lo
>> and behold, the records are now there.  They're now available in
>> TOPCAT (Aladin will take a bit longer, probably until tomorrow).
>>
>> I can't quite say what happened (Theresa, who holds a lot more
>> history than I do, might be able to provide more insight), but I
>> suspect the records made it into the publishing registry quite a bit
>> after the datestamp and thus were lost in incremental harvesting.
>> The weak part of that theory is that the records are old enough to
>> have been part of the initial harvest.  Why they were missing there I
>> really can't say.
>>
>> Costas, I think the best way to fix the problem on all searchable
>> registries (without requiring their operators to do a full
>> re-harvest) would be to bump the datestamp on these (and perhaps
>> other records that may share their fate) to today.  That way,
>> incremental harvesting will bring them back without further
>> intervention.
>>
>> Thanks,
>>
>>             Markus
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