Monitoring - The service appears stable now, and we are processing requests. We are monitoring now with the changes we've made.
As mentioned in the previous update, do note requests for Crossref DOIs via DataCite Content Negotiation may still return a 404 and this is expected behaviour at present.
Jan 19, 18:56 UTC
Identified - A large number of requests has been identified that are specifically attempting to resolve Crossref DOIs via the DataCite content negotiation service, we are having on-going conversations about this use-case.

To remedy we've implemented some timeout logic and additional rate limiting, this however may have a knock on effect those attempting Content Negotiation for Crossref DOIs via DataCite Content Negotiation (Crossref Content Negotiation or via doi.org is unaffected) may receive a 404.

Requests for DataCite DOIs via Content Negotiation should now start to be resolving.
Jan 19, 15:06 UTC
Investigating - During the past week or so we've noticed a huge surge of increased traffic to the Content Negotiation Service. This has unfortunately caused various problems with requests not being resolved. This is currently affecting both the Content Negotiation service but also the Citation Formatter service.

We've made some initial improvements to support the increased load on the service, but it is unfortunately still causing issues.
We will continue to investigate.
Jan 11, 11:00 UTC

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Frontend Applications Degraded Performance
90 days ago
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Today
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90 days ago
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API Servers Degraded Performance
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90 days ago
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GraphQL API Operational
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Metadata Store (MDS) API Test Operational
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REST API Test Operational
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Fabrica Test Operational
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Handle Test Operational
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Operational
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Member API Response Time (Average)
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Past Incidents
Jan 21, 2022

No incidents reported today.

Jan 20, 2022

No incidents reported.

Jan 19, 2022

Unresolved incident: High load amongst content negotiation service..

Jan 18, 2022

No incidents reported.

Jan 17, 2022

No incidents reported.

Jan 16, 2022

No incidents reported.

Jan 15, 2022

No incidents reported.

Jan 14, 2022

No incidents reported.

Jan 13, 2022

No incidents reported.

Jan 12, 2022

No incidents reported.

Jan 11, 2022
Jan 10, 2022

No incidents reported.

Jan 9, 2022

No incidents reported.

Jan 8, 2022

No incidents reported.

Jan 7, 2022

No incidents reported.