AISentry3 months ago
Sentry outage traced to missing region blocklist rule
4 min read
Sentry's AI issue summarization suffered an EU outage on February 21, 2026, with 80-90% of Seer API requests failing. The root cause was a missing invariant in EU configuration that failed to protect provisioned throughput regions from blocklisting during a GCP incident, disabling all available regions.
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