Resolved incident

Most routes 5xx in the US region [resolved]

Svix · Major · Started

Duration
48m
Severity
Major
Status
Postmortem

Summary

Major · Postmortem

We are still investigating, but here is our more complete update regarding this incident: [https://www.svix.com/blog/we-had-a-partial-outage/](https://www.svix.com/blog/we-had-a-partial-outage/)

View official incident ↗

Event timeline

How this incident unfolded, from the official status page.

  1. Investigating

    Svix

    We are currently investigating this issue.

  2. Investigating

    Svix

    Still investigating.

  3. Investigating

    Svix

    We are still investigating, but we put mitigating changes in place.

  4. Monitoring

    Svix

    The service is back up. We are still monitoring, but everything is operational.

  5. Resolved

    Svix

    The issue has been resolved, though we are still trying to locate the root cause. There were no deploys today (Saturday), so it's not due to any change on our end, and the activity doesn't look unusual. For whatever reason our API workers went from ~10% utilization (normal) to 100% in a short span of time. We are investigating with AWS. Update: after investigating with AWS for a few hours, neither they nor us are able to understand the reason for the memory usage jump though their and our metrics don't indicate any change in load, underlying systems, or anything like that. They've indicated that OOM can happen even if there hasn't been any indication to that in the AWS metrics. We are still investigating.

  6. Postmortem

    Svix

    We are still investigating, but here is our more complete update regarding this incident: [https://www.svix.com/blog/we-had-a-partial-outage/](https://www.svix.com/blog/we-had-a-partial-outage/)