Plus OAI-PMH Feed returning badArgument 500 internal server error since 3rd Sept

Metadata Retrieval Interfaces for Machines
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1

Hi,

There seems to be a problem with the OAI-PMH Plus feed, since September 3rd 2023. We have two daily import that makes requests for articles and books, here’s an example of the requests we make:

oai-crossref-org / oai?metadataPrefix=cr_unixml&from=2023-09-03&until=2023-09-03&set=B&verb=ListRecords

Prior to the 3rd, we were able to retrieve data from the repository. The error message we get is:

500 Internal Server Error

I’ve confirmed that the Crossref token we’ve been granted is working, can you please investigate?

Thanks,
G

2

I’ve had to modify the url example above since I’m not allowed to post links.

3

Hi @gdfry ,

Thanks for your message, and welcome to the Community Forum! We’ve heard from a few Metadata Plus subscribers about this.

It’s taken us a little longer than we would have liked to identify the problem, but our customer relationship management system underwent a routine, quarterly release on Sunday around 2000 UTC that introduced this bug. Some of our members’ internal identifiers got out of sync as a result of that release. Unfortunately, it sounds like you might be one of them. Our technical team is working on the fix now.

I’ll provide updates on our status page - Crossref Status - Member sync error causing OAI-PMH access issue and data inaccuracies - and will confirm with you on this forum post once we have this fully resolved.

Our apologies,
Isaac

4

Hi @gdfry ,

We deployed a fix to this bug. All of the Plus tokens that I have spot checked are providing access to their Metadata Plus subscribers. Can you let me know if you continue to experience problems on your end?

-Isaac

5

Hi Isaac,

Thanks for resolving the issue. We’ve been running fine until 23rd Sept, when we started seeing constant timeouts from this request:
http://oai.crossref.org/oai?metadataPrefix=cr_unixml&from=2023-09-22&until=2023-09-22&set=B&verb=ListRecords

We’re performing an import on books (set=B) only which is failing.
We also have a similar regular import on articles/journals (set=J) which has been working fine over this same period. Can you please investigate further?

Thanks