Nebius incident

InfiniBand connectivity issues for GPU clusters in eu-west2

Minor Resolved View vendor source →

Nebius experienced a minor incident on October 3, 2026 affecting Compute Cloud, lasting 6h 28m. The incident has been resolved; the full update timeline is below.

Started
Oct 03, 2026, 02:30 AM UTC
Resolved
Oct 03, 2026, 08:59 AM UTC
Duration
6h 28m
Detected by Pingoru
Oct 03, 2026, 02:30 AM UTC

Affected components

Compute Cloud

Update timeline

  1. investigating Oct 03, 2026, 04:45 AM UTC

    We are investigating InfiniBand connectivity issues affecting some GPU clusters in Compute Cloud in eu-west2. Distributed training jobs on affected clusters may experience degraded interconnect performance or failures. We will provide an update as soon as we have more information.

  2. identified Oct 03, 2026, 05:17 AM UTC

    We have identified the cause of the InfiniBand connectivity issues. Our on-site team is working to resolve it. We will provide an update as soon as we have more information.

  3. monitoring Oct 03, 2026, 07:44 AM UTC

    A fix has been implemented and we are monitoring the results.

  4. resolved Oct 03, 2026, 08:59 AM UTC

    This incident has been resolved.