There were 5 Ubicloud outages since February 6, 2026 totaling 5h 49m of downtime. Each is summarised below — incident details, duration, and resolution information.
We are currently investigating issues which mostly impacts Postgres services.
We are continuing to investigate this issue.
This incident has been resolved.
Due to an unexpected spike in arm64 demand, there is currently a delay in provisioning arm64 runners. We are working to increase our capacity as quickly as possible to meet the demand and mitigate the issue.
This incident has been resolved.
DNS queries can fail sporadically, linked to a UDP-related fault at Hetzner https://status.hetzner.com/incident/5e901309-0873-42af-90c5-84f38304f592 We're monitoring and looking to work around this issue.
Caused by a DDOS attack against Hetzner and its mitigation routines. We will be diversifying our DNS upstreams in the future.
Some systems have been restarting erratically due to a recent code change. We backed this out and are recovering.
All systems operational again. Write to [email protected] about anything unexpected.
There is a defect in Postgres that causes unbound DNS records. Negative caching can exacerbate the incident after our fix. Databases affected: many at the outset, some now. Diagnosing the last records.
We've hotfixed the remaining records. Negative caching of DNS can slow recovery, depending on the upstream DNS server. We will remain in contact with all affected customer until all symptoms are resolved.
Some records are proving more difficult to address than we expected.
We've identified this problem, and believe negative caching of DNS records to be all that remains. We are going to continue to check for at least thirty minutes, the longest time reported for negative caching so far.
Cross checking DNS records has been successful for some time. Customers report negative caches have since expired. Likely cause: race condition that caused misapplication of DNS records that was exposed under higher parallelism. We have to analyze it and patch it in the coming days.
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