Increased Latency for Small Subset of Customers
Feb 27, 16:25 UTCFeb 27, 16:25 UTC
Duration
0m
Impact
Minor
Root cause
Not disclosed
Grafana Labs, 90 days
74 incidents
Affected
Not listed by the vendor.
Final update
A recent rollout caused the AuthZ (RBAC) service to perform many redundant folder-tree fetches for each authorization check. For a small number of tenants in the prod-us-east-0 and prod-eu-west-2 regions with very large folder trees. This added a few milliseconds to every check, which increased request latency. The approximate timeframe of the impact is: 2026-02-26 17:24:43 UTC to 2026-02-27 14:33:53 UTC. This has now been resolved.
Timeline
- Resolved · Feb 27, 16:25 UTC
A recent rollout caused the AuthZ (RBAC) service to perform many redundant folder-tree fetches for each authorization check. For a small number of tenants in the prod-us-east-0 and prod-eu-west-2 regions with very large folder trees. This added a few milliseconds to every check, which increased request latency. The approximate timeframe of the impact is: 2026-02-26 17:24:43 UTC to 2026-02-27 14:33:53 UTC. This has now been resolved.
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