• Product: Aleph
• Product Version: 20, 21, 22, 23
• Relevant for Installation Type: Dedicated-Direct, Direct, Local, Total Care

Problem Symptoms:
Using OAI provider (URL syntax http://<server>/OAI-script?verb=ListRecords&...):
* Not all expected records are included
* Response is very slow
* No response at all

Cause:
"Old" OAI provider.

Resolution:
Implement "new "Publishing Based OAI Data Provider.pdf  and use this provider instead of the "old" one.

Additional Information:
For explanation - in Aleph two OAI provider exist:

1) "Old" OAI provider (URL syntax http://<server>/OAI-script?verb=ListRecords&... )  If a customer has used this provider all the time and is happy with the results, it is fine.

2) "New" Publishing-Based OAI Data Provider (URL syntax http://<server>/OAI?verb=ListRecords&... ) was implemented:   Publishing Based OAI Data Provider.pdf .  It has much better performance and more stable.

The "old" OAI provider exists still in the programs for backward compatibility. It is using Z13 "on the fly"; therefore it is very slow and sometimes doesn't even response when you have large number of documents.

We strongly recommend the use of the publishing-based OAI provider.

• Article last edited: 6-Jun-2016