GitHub Actions、Issues 和 Pull Requests 服务故障

GitHub 的 Actions、Issues 和 Pull Requests 服务于 2026 年 10 月 12 日 12 时 21 分（UTC）发生性能故障1。受影响范围包括通知、Checks API、REST 和 GraphQL API 等多项功能1。用户遭遇性能下降、延迟和错误，Actions 标签页加载困难，PR 审核请求处理异常1。

GitHub 团队在发现问题后立即展开调查，于 12 时 33 分提供详细说明，随后在 12 时 57 分开始实施缓解措施1。到 13 时 2 分，Pull Requests 服务恢复正常1。截至 13 时 38 分，Actions 和 Issues 等其他服务仍存在问题1。团队表示初期缓解措施效果有限，用户可能继续面临延迟和错误，正在进行进一步调查以确定根本原因并实施额外缓解措施1。

GitHub encountered a significant service disruption on October 12, 2026, impacting multiple core features including Actions, Issues, Pull Requests, notifications, the Checks API, and both REST and GraphQL APIs 1. The incident began at 12:21 UTC when the company's technical team initiated an investigation into reported problems 1. Users experienced widespread performance degradation, latency issues, and errors, with particular difficulty in loading the Actions tab and abnormalities in pull request review requests 1.

Initial mitigation measures were deployed at 12:57 UTC, though these efforts yielded limited effectiveness with users continuing to encounter delays and failures 1. By 13:02 UTC, the Pull Requests service had returned to normal operation 1. However, other affected services remained unstable as of 13:38 UTC, prompting the team to continue investigating root causes and implement additional remediation steps 1.