Andre, the main reason for preferring dwca at the source over a querying protocol like digir, tapir & biocase is simply performance and higher availability due to far less time needed for downloading an archive versus paging through the whole dataset.
Markus
On Feb 17, 2011, at 12:08, Andre Heughebaert wrote:
David,
Is'nt it a feature of the HIT to harvest all records from a GBIF resource (Digir, Biocase, Tapir,...) and build a DwC Archive. If this is the case, I don't see the point of adding it to TapirLink. Or did I missed something?
My2Cents, Andre
On 11/02/11 09:53, David Remsen (GBIF) wrote:
I think that is a great idea. Who was the developer of TapirLink?
On Feb 10, 2011, at 2:11 PM, Hannu Saarenmaa wrote:
This querying functionality is indeed available in Tapirlink, which is a solid and proven data provider package.
However, this thread makes me think that also Tapirlink could be enhanced to support harvesting by Darwin Core archive, similar to IPT. I mean, often users want to bulk download the whole resource. I just had such a question the other day. This would probably speed up GBIF data portal harvesting process greatly.
As an existing Tapirlink provider, we are unlikely to migrate to IPT. But we could upgrade Tapirlink to a version that supports Darwin Core archiving.
Please allow me to suggest that GBIF order this enhancement to Tapirlink.
Regards, Hannu
On 2011-02-09 5:52, Tim Robertson wrote:
Hi David,
In the IPT there is 1 directory (the data directory) that you can copy to a new machine to migrate an installation. The admin should also back up this directory periodically for disaster recovery purposes.
You are correct in understanding the IPT 2.0, in that it does not support ad-hoc querying. There are many potential development directions for the IPT, and during 2011 we will open up a wider discussion amongst the IPT users to determine the best approach. There are tools that do ad hoc querying so perhaps it is not the best direction for the IPT, and the IPT would be better placed at integrating quality control routines and annotation consumption for example. It will not be possible to satisfy all the diverse requirements on minimum hardware, simplicity, performance, functionality and scale without some compromises somewhere - this is where we need to do a good needs assessment as things develop.
Best wishes, Tim
On 2/9/11, Herbario SANT sant.herbarium@gmail.com wrote:
...
One more question regarding digir/tapirlink versus IPT:
It was possible to launch direct xml queries to them, so I could construct a web server to show inventories or specific searches of an specific data provider. How can I do this with IPT? I haven't looked in detail but I guess the only way to get data from IPT is downloading full datasets
Nobody else has requested this feature? Would it be possible to have something like this built in IPT, without reducing IPT performance a lot? (even with a different technic but similar client interface services):
http://tapirlink.berkeley.edu/tapir_client.php http://algae.manoa.hawaii.edu/database/lib/tapirlink/www/tapir_client.php
Thanks for your answers David
-- David García San León Herbario SANT Facultade de Farmacia - Laboratorio de Botánica Universidade de Santiago de Compostela 15782 - Galicia (Spain)
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