EU Query Downtime

Update timeline

1. investigating Feb 26, 2026, 03:30 PM UTC

   Status: Investigating We are investigating reports of widespread query failures on the legacy EU instance. Users experiencing internal server errors when executing queries. Affected components API (Operational) Alerting (Operational) Querying (Operational) Endpoints (Operational) Ingest (Operational) App (Operational) App (Operational) Endpoints (Operational) Ingest (Operational) Alerting (Operational) API (Operational) Querying (Full outage)

2. identified Feb 26, 2026, 03:40 PM UTC

   Status: Identified We've identified the root cause as a network configuration change that disrupted internal service-to-service communication. This caused query requests to fail, resulting in HTTP 500 errors. Affected components Querying (Operational) Ingest (Operational) App (Operational) App (Operational) Ingest (Operational) Alerting (Operational) API (Operational) Alerting (Operational) Endpoints (Operational) Endpoints (Operational) API (Operational) Querying (Full outage)

3. resolved Feb 26, 2026, 03:55 PM UTC

   Status: Resolved All services have returned to normal operation. Queries are executing successfully, and internal traffic between services has been fully restored. We are continuing to monitor the system to ensure stability. Affected components API (Operational) API (Operational) Querying (Operational) Alerting (Operational) Querying (Operational) Alerting (Operational) Endpoints (Operational) Ingest (Operational) App (Operational) App (Operational) Ingest (Operational) Endpoints (Operational)