Blacksmith incident
Transparent caching degradaded in eu-west
Resolved after 7 days 2 hours, affecting Actions Cache, on May 20, 2026.
The cluster expansion is complete. Our testing shows that cache interactions are no longer degraded. We're monitoring the cluster to confirm complete recovery.
Affected components
Update timeline
- monitoring May 20, 2026, 01:01 PM UTC
We noticed a small uptick in transparent caching failures in our eu-west region, and have applied a potential fix.
- identified May 20, 2026, 02:41 PM UTC
We have identified a bad host in the fleet and are working on replacing it. Client cache interactions are recovering as we rollout this fix.
- identified May 20, 2026, 10:59 PM UTC
We're currently adding more capacity to the cluster. There will be a few minutes of slow cache interactions while the operation completes.
- monitoring May 21, 2026, 12:00 AM UTC
The cluster expansion is complete. Our testing shows that cache interactions are no longer degraded. We're monitoring the cluster to confirm complete recovery.
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