Companies/Scaleway/Incidents

Scaleway: [SERVERLESS-CONTAINER] - [nl-ams] - Intermittent errors when accessing Serverless Containers

Timeline of updates

1. resolved2026-03-09 18:59 UTC

   After investigation, we have found the root cause. During the scheduled maintenance https://status.scaleway.com/incidents/p2cj27y80n9w (opens in new tab), starting on 03/03 at 3:30 PM UTC, we experienced a lot of pressure on our infrastructure, saturating the number of connections of our LB. As a result, health checks struggled to complete, leading to our backends marked as "down", "up", "down", "up", etc., while they were healthy. When "down", no more requests could be done to our infrastructure, leading to TLS errors. These "down" phases lasted a few minutes each time, and were frequently interleaved with "up" phases, leading to a partial disruption. All requests made during "down" phases were rejected. Situation improved during the night (03/03 10 PM -> 03/04 6:30 AM), as we were receiving a fewer amount of requests. On 03/04 15:10 UTC, rebalancing our backends and closing idle connections freed capacity and solved the issue, as now, backends were always "up", so ready to receive traffic. We will add more monitoring on our LB so it doesn't happen again. We apologize once again for any inconvenience.

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