Sentry: EU Region Error, Attachment, and Feedback latency

Impact: criticalStatus: resolvedStarted 2026-07-20 11:11 UTCResolved 2026-07-20 16:57 UTC (5.8 h)10 updatesSource: stspg.io

Summary

Sentry reported a critical EU-region incident causing high ingestion latency for errors, attachments, and feedback from 2026-07-20 11:11 UTC to 2026-07-20 16:57 UTC, lasting 5 h 46 min. Sentry implemented an attachment ingestion fix and cleared attachment and error backlogs; latency returned to normal across all event types.

Machine-written from the archived incident (Sol). Check the timeline before relying on it.

Affected components: EU Ingestion - EU Error IngestionAlerting - EU Errors AlertingEU Ingestion - EU Attachment Ingestion

Timeline of updates

investigating2026-07-20 11:11 UTC
we are investigating an issue affecting errors ingestion in the DE/EU region
identified2026-07-20 11:41 UTC
We have identified the issue causing errors, attachments, and feedback events to have high ingest latency in our EU region and are working on a fix.
identified2026-07-20 12:10 UTC
We have identified the issue causing errors, attachments, and feedback events to have high ingest latency in our EU region and are continuing to work on a fix.
identified2026-07-20 12:24 UTC
We have identified the issue causing errors, attachments, and feedback events to have high ingest latency in our EU region and are continuing to work on a fix.
identified2026-07-20 13:19 UTC
We have identified the issue causing errors, attachments, and feedback events to have high ingest latency in our EU region and are continuing to work on a fix.
identified2026-07-20 13:47 UTC
We have implemented a fix for errors and feedback ingestion in our EU region, and latency for those pipelines has returned to normal. We are still working on fixing our attachments ingestion pipeline in EU.
monitoring2026-07-20 14:30 UTC
We have implemented a fix for our attachment ingestion issue in our EU region, and are monitoring while the backlog burns. We will update here when latency is back to normal.
monitoring2026-07-20 14:50 UTC
The backlog on attachments in our EU region is fully burned, and latency is back to normal. While new error events are being processed with normal latency, we have a backlog of old error events that we are now burning through.
monitoring2026-07-20 16:09 UTC
We are still burning the backlog of EU region error events received during the incident. We are around halfway through the backlog.
resolved2026-07-20 16:57 UTC
We have fully burned the backlog of EU error events ingested during the incident. Latency is normal across all event types.

Rewindex changes for this incident

Critical incident: EU Region Error, Attachment, and Feedback latency 2026-07-20 11:11 UTC

Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab). Sentry profile · Recent Sentry incidents · Markdown · JSON