Crossref incident
Intermittent 504 (Gateway time-out) status code errors on OAI-PMH queries
Resolved after 20 days, affecting Plus OAI-PMH and OAI-PMH, on July 23, 2025.
We believe our changes have solved this issue, but we're going to continue to monitor this over the weekend. -IF
Affected components
Update timeline
- investigating Jul 23, 2025, 07:12 PM UTC
We have had metadata users report that they are receiving intermittent 504 (Gateway time-out) status code errors on calls to OAI-PMH endpoints. We have been able to replicate and are currently investigating. -IF
- investigating Jul 24, 2025, 03:28 PM UTC
We are continuing to investigate this issue.
- investigating Jul 25, 2025, 08:40 PM UTC
We are continuing to investigate this issue.
- identified Jul 28, 2025, 06:49 PM UTC
This issue has been identified and we'll be releasing a fix during tomorrow's maintenance window. -IF
- identified Jul 30, 2025, 04:03 PM UTC
We are continuing to work on a fix for this issue.
- monitoring Aug 06, 2025, 06:26 PM UTC
A fix has been implemented and we are monitoring the results.
- monitoring Aug 08, 2025, 03:09 PM UTC
We believe our changes have solved this issue, but we're going to continue to monitor this over the weekend. -IF
- resolved Aug 12, 2025, 07:47 PM UTC
This incident has been resolved.
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