Incident with Copilot
GitHub・最後の保存提供元状態：resolved
公式情報源の文章は原語で表示します。
最後の保存インシデント状態は現在サービス状態ではありません。一覧は不完全の場合があり、情報源からの消失は復旧確認ではありません。最新証拠は現在報告・公式情報源を開いてください。
保存インシデント詳細
- 提供元状態
- resolved
- 提供元が報告する影響
- minor
- 提供元記録の作成
- 03 Aug 2026, 09:53:27 UTC
- 提供元記録の更新
- 12 Aug 2026, 15:00:05 UTC
- 提供元が明記した開始
- 03 Aug 2026, 09:53:27 UTC
- 提供元が明記した終了
- 03 Aug 2026, 11:25:12 UTC
提供元が報告した影響を受けるコンポーネント
- Copilot
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関連はインシデント報告範囲で、現在コンポーネント可用性や検証依存関係を証明しません。
記録の作成時刻が障害開始時刻とは限りません。未報告の時刻は不明のままです。収集時刻から停止時間を算出しません。
保存リビジョンの提供元更新
新しい順です。最新の保存内容20リビジョンから最大100件の異なる更新を表示します。同じ提供元時刻の文章変更も別に保持します。
- resolved
On 2026-08-03, between 06:52 and 11:25 UTC, some GitHub Copilot users experienced errors when using chat and agent features. Requests to list the available models failed, and because every chat or agent interaction begins by retrieving the list of models, affected users saw their requests fail. On average about 3% of these model-listing requests failed during the incident (roughly 97% succeeded), but failures were significantly higher during peak-traffic periods, at times approaching 100% for the affected internal lookups. Approximately 4,066 users were affected in a single 60-minute window, concentrated among IDE-based clients. The underlying AI models themselves remained healthy throughout.<br /><br />The incident was caused by an increase in how often clients requested the model list, which pushed an internal user-authorization lookup past a rate limit; the rate-limited responses were surfaced to users as errors. We mitigated the impact by increasing how long Copilot caches that authorization lookup, which reduced load on the internal service, and we have additional capacity and rate-limit changes in progress. To prevent recurrence we are improving monitoring for this class of failure, adjusting cache and rate-limit settings, and coordinating with client teams on request patterns.
保存リビジョンでの確認：06 Oct 2026, 13:58:39 UTC - monitoring
The degradation affecting Copilot has been mitigated. We are monitoring to ensure stability.
保存リビジョンでの確認：06 Oct 2026, 13:58:39 UTC - investigating
We are still seeing intermittent errors with Copilot, and are continuing to investigate and consider mitigations.
保存リビジョンでの確認：06 Oct 2026, 13:58:39 UTC - investigating
We are experiencing degraded availability for chat & agent models in Copilot. Multiple models are impacted and customers may experience requests failing. We are investigating and will provide an update as soon as possible.
保存リビジョンでの確認：06 Oct 2026, 13:58:39 UTC - investigating
We are investigating reports of degraded performance for Copilot
保存リビジョンでの確認：06 Oct 2026, 13:58:39 UTC