← Outage Reports
CircleCI logo
CircleCI
circleci.com
🐳 Outages Resolved

CircleCI resolves Docker job startup delays

CircleCI has resolved an incident that caused Docker jobs to experience significant queue delays.

By The Downtime · Jun 24, 2026 · 4:17 PM

CircleCI experienced a major outage affecting customers running Docker jobs. Jobs were queuing rather than starting, with many stuck in a "preparing environment" state for extended periods. The issue has now been resolved.

CircleCI is a continuous integration and deployment platform widely used by development teams to automate testing and deployment workflows.

The company began investigating reports of delays on Docker job startups, identified the underlying cause, and deployed a fix. Engineers observed the job backlog clearing as the mitigation took effect, with Docker jobs returning to normal startup times. Customers who submitted jobs during the incident window may still see some elevated queue times, though newly submitted jobs are starting normally.

The incident is now marked resolved.

🕒 Live updates (5)

resolved Jun 23, 7:58 PM

The issue where customers running Docker jobs experienced significant delays, with jobs stuck in a "preparing environment" state, has now been resolved. We thank you for your patience while our team worked on implementing a fix.

monitoring Jun 23, 7:29 PM

What's happening Our engineers have deployed a fix and we are observing the job backlog clearing. Docker jobs are now starting normally. What's impacted Customers who submitted Docker jobs during the incident window may still see some jobs completing with elevated queue times. Newly submitted jobs should be starting at normal times. What can you expect Docker job startup times are returning to normal. Thank you for your patience while our engineers resolved this issue. We are monitoring the recovery and will provide a further update if the situation changes.

identified Jun 23, 7:04 PM

What's impacted Customers running Docker jobs. Affected jobs are queuing rather than starting, resulting in elevated wait times. What can you expect Docker jobs may remain stuck in "preparing environment" for an extended period. Our engineers have identified the cause and are actively working to restore normal job startup times. Thank you for your patience while our team deploys a fix. Next update We will provide another update as soon as more information is available

identified Jun 23, 6:42 PM

We are deploying a change to mitigate this issue.

investigating Jun 23, 6:34 PM

We are investigating reports of delays starting Docker jobs.

📎 Sources

Outage details are aggregated from official provider status pages. The Downtime reports them as a public service and is not affiliated with the providers named.

💬 Comments (0)

No comments yet — be the first to weigh in.

Join the conversation.