Incident with Actions
GitHub · 最近保存的提供方状态：resolved
官方来源文字以原始语言显示。
最近保存的事件状态不是当前服务状态。来源列表可能不完整，事件从来源消失不确认恢复。请打开当前报告或官方来源查看较新证据。
已保存事件详情
- 提供方状态
- resolved
- 提供方影响程度
- critical
- 提供方记录创建时间
- 26 Aug 2026, 15:11:58 UTC
- 提供方记录更新时间
- 27 Aug 2026, 02:24:56 UTC
- 提供方明确报告的开始时间
- 26 Aug 2026, 15:11:58 UTC
- 提供方明确报告的结束时间
- 26 Aug 2026, 18:01:30 UTC
提供方报告的受影响组件
- Actions
br0l2tvcx85d - Pages
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这些关联描述此事件的报告范围。不能确认当前组件可用性或已核实依赖关系。
记录创建时间未必是故障开始时间。未报告的时间保持不可用。我们不根据采集时间计算故障时长。
已保存修订中的提供方更新
最新优先。最多显示最近 20 份已保存内容修订中的 100 条不同更新。同一提供方时间的文字修订单独保留。
- resolved
On August 26, 2026 from 15:02 to 15:45 UTC, Actions jobs failed to start. The following 2 hours until 17:40 UTC, Actions runs were delayed starting by more than 5 minutes as the system caught up with delayed load. This impact was triggered by saturation of writes to the database primary used by the service processing triggers for Actions workflows. The primary was failed over, but the system did not fully recover. The saturation was caused by growing daily peak load combined with an upstream issue in GitHub’s event processing infrastructure, https://www.githubstatus.com/incidents/hcbtzksccj2f, which caused burst amplification of already-high load. Downstream throttles that were later used to recover were set ~10% too high to protect the system. <br /><br />At 15:45 UTC, throttling combined with service restarts recovered the service’s core health. Those throttles were gradually raised between 15:54 and 17:22 to restore full webhook processing for Actions runs. This ramp was deliberately slow to ensure we did not re-overwhelm the system given our original throttling was now known to be incorrectly set. The queue of webhook events was fully burned down at 17:40 UTC. <br /><br />3.7% of larger-runner jobs, along with some scale-set self-hosted jobs, remained stuck in queued or “waiting for runner” state. We deployed a change to force-revoke jobs in this state, and they transitioned to failed at 18:40 UTC, about 50 minutes after incident mitigation. Releasing these jobs also freed hosted concurrency for larger-runner jobs. <br /><br />Customers using concurrency groups saw longer impact due to a separate issue where runners assigned to a subset of jobs disconnected before the force-revoke mitigation was deployed, which prevented runner acquisition from progressing and left jobs in a waiting-for-runner state. This was resolved at 01:00 UTC on August 27. <br /><br />Some runs triggered during the 15:02-15:45 UTC incident window encountered a bug that left them showing as queued even after service recovery. In the backend, these runs had already failed and will automatically move to canceled state 24 hours after creation. As follow-up, we are fixing the root cause of this queued state and improving our ability to bulk-cancel affected runs. <br /><br />Several changes to improve the general scalability of this part of Actions were already complete and deploying to production. Rollout of those changes will be complete within the next 24 hours. Further work to improve scale, resiliency, and more graceful degradation of Actions workflows are in flight. We are also taking a repair item to accelerate clearing of stuck queued or waiting jobs in similar future cases.
在 06 Oct 2026, 13:58:39 UTC 的已保存修订中观察到 - monitoring
All inbound queues have recovered and Actions is operating as expected. 3.7% of jobs assigned to larger runners during the early stage of this incident are stuck waiting for runner assignment. Those will be canceled within the hour. Other runners are successfully processing all new jobs.
在 06 Oct 2026, 13:58:39 UTC 的已保存修订中观察到 - monitoring
The degradation affecting Actions has been mitigated. We are monitoring to ensure stability.
在 06 Oct 2026, 13:58:39 UTC 的已保存修订中观察到 - investigating
We are continuing to observe recovery and expect actions inbound queues to be back to normal in <30min. Work will continue to flow through the system subject to per-customer concurrency limits.
在 06 Oct 2026, 13:58:39 UTC 的已保存修订中观察到 - investigating
We are continuing to observe recovery and delayed queues are burning down. Some customers will continue to see increased delays until all throttled work has been completed - we expect this within the next hour.
在 06 Oct 2026, 13:58:39 UTC 的已保存修订中观察到 - investigating
Pages is operating normally.
在 06 Oct 2026, 13:58:39 UTC 的已保存修订中观察到 - investigating
We believe we've identified and addressed the issue and are ramping traffic back up slowly to ensure it doesn't recur. Some customers will continue to see delays as we ramp up.
在 06 Oct 2026, 13:58:39 UTC 的已保存修订中观察到 - investigating
primary failover briefly improved performance but did not fully mitigate, we've throttled inbound traffic and are investigating upstream Vitess issues
在 06 Oct 2026, 13:58:39 UTC 的已保存修订中观察到 - investigating
We've identified an issue with a database primary and are failing over to a replica immediately
在 06 Oct 2026, 13:58:39 UTC 的已保存修订中观察到 - investigating
Pages is experiencing degraded performance. We are continuing to investigate.
在 06 Oct 2026, 13:58:39 UTC 的已保存修订中观察到 - investigating
We are investigating reports of degraded availability for Actions
在 06 Oct 2026, 13:58:39 UTC 的已保存修订中观察到