GitHub的一些服务中断

在2026年7月19日23:05 UTC至2026年7月20日03:55 UTC期间，Actions自托管运行器和大型运行器无法连接到GitHub。在此期间，尝试获取运行器时，Actions作业出现延迟或失败。使用标准运行器和Mac托管运行器的作业未受影响。受影响运行器的重连流量也增加了GitHub API的负载，导致平均请求延迟额外增加3-4秒，并出现较高的5xx错误率。<br /><br />此次事件由部分内部服务的证书生命周期管理故障引起，导致SSL证书过期，从而中断了运行器的连接。我们通过轮换受影响的证书恢复了服务。恢复工作于02:45 UTC开始。到03:55 UTC，排队的工单积压已处理完毕，工作流延迟率恢复正常。<br /><br />为防止再次发生，我们正在加强证书续期自动化，增加备用过期监控和警报，并改进运行器API中断期间的断路器保护，以降低对其他API的级联影响风险。

原文Between July 19, 2026, at 23:05 UTC and July 20, 2026, at 03:55 UTC, Actions self-hosted and larger runners were unable to connect to GitHub. During this period, Actions jobs were delayed or failed when trying to acquire a runner. Jobs using standard and Mac hosted runners were not affected. Reconnection traffic from affected runners also increased load on GitHub APIs, resulting in 3-4 seconds of additional average request latency and elevated 5xx error rates.<br /><br />The incident was caused by a certificate lifecycle management failure in a subset of internal services, resulting in an SSL certificate expiration that disrupted runner connectivity. We restored service by rotating the affected certificate. Recovery began at 02:45 UTC. By 03:55 UTC, queued workflow backlog had been processed and workflow delay rates returned to normal.<br /><br />To prevent recurrence, we are strengthening certificate renewal automation, adding fallback expiry monitoring and alerting, and improving circuit-breaker protections during runner API disruptions to reduce the risk of cascading impact to other APIs.

Git LFS API成功率已恢复正常。我们将继续密切监控服务状态。

原文Git LFS API success rates have returned to normal. We will continue to monitor the service closely.

Git LFS API问题已被确认与另一起事件相关，即Actions服务可用性降级。我们正在将该事件的调查工作合并处理。

原文The Git LFS API issues have been identified as being related to a separate incident where Actions is experiencing degraded availability. We’re consolidating our investigation efforts under that incident.

部分Git LFS操作以及通过API加载文件正在失败。我们正在调查中。

原文Some Git LFS operations, and loading files through the API are failing. We are investigating.

部分Git LFS操作以及通过API加载文件目前出现故障。我们正在调查中。

原文Some Git LFS operations, and loading files through the API are failing. We are investigating.

我们正在调查部分GitHub服务性能受影响的相关报告。

原文We are investigating reports of impacted performance for some GitHub services.