Minor impactResolvedDevOps

CircleCI incident: Increased Docker gen2 wait times

CircleCI reported this minor-impact incident on its official status page on Oct 21, 2026, 19:31 UTC. It was resolved after 1h 24m.

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Oct 21, 2026, 19:31 UTC
started
Oct 21, 2026, 20:54 UTC
resolved
1h 24m
duration
Minor
impact

Affected components

  • Docker Jobs
  1. postmortemOct 22, 2026, 23:29 UTC

    ## Summary From 15:44 to 20:55 UTC on October 21, customers running Gen 2 Docker jobs saw increased wait times for their jobs to start. Delays were longest on the 2xlarge resource class, where jobs waited up to 20 minutes. The incident was caused by limited availability of the cloud instances we had configured to meet demand, particularly for 2xlarge jobs. In response, our engineering team configured additional instance types, configured additional Gen 2 Docker clusters. By 20:55 UTC, wait times had returned to normal and the incident was resolved. After the incident was resolved, we expanded our Gen 2 Docker fleet into additional cloud regions, and we continue actively standing up additional cloud regions to prevent similar incidents in the future. The original status page can be found here: [October 21 - Increased Docker gen2 wait times](https://status.circleci.com/incidents/5jb50gh55gtj). ## Background When CircleCI executes a Docker job, we schedule it on one of several clust

  2. resolvedOct 21, 2026, 20:54 UTC

    Wait times for gen2 Docker jobs have recovered and jobs are running within normal wait times.

  3. monitoringOct 21, 2026, 20:40 UTC

    We have seen a full recovery of wait times for docker jobs.

  4. identifiedOct 21, 2026, 20:35 UTC

    Wait times for 2xlarge docker jobs are now under 60 seconds. Wait times for other resource sizes were not impacted by this incident and remain under 10 seconds.

  5. identifiedOct 21, 2026, 20:22 UTC

    Wait times for 2xlarge docker jobs are recovering. We will continue to update as capacity comes online.

  6. identifiedOct 21, 2026, 20:03 UTC

    We are adding additional capacity to help mitigate the issue. Note: We are still seeing delays up to 20 minutes on 2xlarge.

  7. identifiedOct 21, 2026, 19:31 UTC

    Some users might see increased wait times for gen2 Docker jobs due to capacity issues.

What APIStatus.watch saw

  • Oct 21, 2026, 19:35 UTCoperational → degraded
  • Oct 21, 2026, 20:55 UTCdegraded → operational

Other services with incidents at the same time

Overlapping incidents aren't necessarily related.

How often does CircleCI have incidents?

CircleCI reported 23 incidents in the last 90 days, 3 of them major or critical. A typical incident lasted 1h 31m. See CircleCI's uptime and incident history

CircleCI incident on Oct 21, 2026: Increased Docker gen2 wait times · APIStatus.watch